The Central Arizona Project ( CAP ) is a 336 mi (541 km) diversion canal in Arizona in the southern United States.
84-658: The Arizona Theatre Company is an American nonprofit regional theater company operating in Phoenix, Arizona . The Arizona Theatre Company (ATC) was founded by Sandy Rosenthal in 1966 as the Arizona Civic Theatre. It originally performed in the basement of the old Santa Rita Hotel in Tucson. In 1972, the company achieved full professional status and became a member of the League of Resident Theatres (LORT). The company began presenting
168-511: A US Commission on Civil Rights of hearing that of 31,000 homes that had recently sprung up in this neighborhood, not a single one had been sold to an African-American. Phoenix's African-American and Mexican-American communities remained largely sequestered on the south side of town. The color lines were so rigid that no one north of Van Buren Street would rent to the African-American baseball star Willie Mays , in town for spring training in
252-625: A hot desert climate ( Köppen: BWh ), typical of the Sonoran Desert , and is the largest city in America in this climatic zone. Phoenix has long, extremely hot summers and short, mild winters. The city is within one of the world's sunniest regions, with its sunshine duration comparable to the Sahara region. With 3,872 hours of bright sunshine annually, Phoenix receives the most sunshine of any major city on Earth. Average high temperatures in summer are
336-452: A duel; Chenowth killed Favorite and was forced to withdraw from the race. The town grew during the 1870s, and President Ulysses S. Grant issued a land patent for the site of Phoenix on April 10, 1874. By 1875, the town had a telegraph office, 16 saloons, and four dance halls, but the townsite-commissioner form of government needed an overhaul. An election was held in 1875, and three village trustees and other officials were elected. By 1880,
420-549: A four percent annual population growth rate over a 40-year period from the mid-1960s to the mid-2000s, and was among the nation's ten most populous cities by 1980. Phoenix is also one of the largest plurality-Hispanic cities in the United States, with 42% of its population being Hispanic . The Hohokam people occupied the Phoenix area for 2,000 years. They created roughly 135 miles (217 kilometers) of irrigation canals, making
504-548: A fungal lung infection. Unlike most desert locations which have drastic fluctuations between day and nighttime temperatures, the urban heat island effect limits Phoenix's diurnal temperature variation . As the city has expanded, average summer low temperatures have been steadily rising. Pavement, sidewalks, and buildings store the Sun's heat and radiate it at night. The daily normal low remains at or above 80 °F (27 °C) for an average of 74 days per summer. On July 19, 2023, at
588-500: A grid layout pattern that has been the hallmark of Phoenix's urban development ever since. On February 12, 1871, the territorial legislature created Maricopa County by dividing Yavapai County; it was the sixth one formed in the Arizona Territory. The first election for county office was held in 1871 when Tom Barnum was elected the first sheriff. He ran unopposed when the other two candidates (John A. Chenowth and Jim Favorite) fought
672-570: A growth rate under 24% in a census decade. However, in 2016, Phoenix once again became the fastest growing city in the United States, adding approximately 88 people per day during the preceding year. The Phoenix Metropolitan Statistical Area (MSA) (officially known as the Phoenix-Mesa-Chandler MSA ), is one of 10 MSAs in Arizona, and was the 11th largest in the United States, with a 2018 U.S. census population estimate of 4,857,962, up from
756-466: A joint congressional resolution granting statehood to Arizona, due to his disapproval of the state constitution's position on the recall of judges. In 1913, Phoenix's move from a mayor-council system to council-manager made it one of the first cities in the United States with this form of city government. After statehood, Phoenix's growth started to accelerate; eight years later, its population reached 29,053. In 1920, Phoenix would see its first skyscraper,
840-402: A long drought, and the reservoir which was supposed to be behind the dam was virtually dry. The humorist Will Rogers , who was on hand as a guest speaker joked, "If that was my lake, I'd mow it." Phoenix's population had nearly doubled during the 1920s and by 1930 stood at 48,118. It was also during the 1930s that Phoenix and its surrounding area began to be called "The Valley of the Sun", which
924-409: A myriad of residential tract developments on both farmland and desert." Retail outlets and office complexes spread out and did not concentrate in the small downtown area. There was low population density and a lack of widespread and significant high-rise development. As a consequence Phoenix became a textbook case of urban sprawl for geographers. Even though it is the fifth most populated city in
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#17328701187121008-686: A planning committee appointed directly by the city council. According to the city-issued village planning handbook, the purpose of the village planning committees is to "work with the city's planning commission to ensure a balance of housing and employment in each village, concentrate development at identified village cores, and to promote the unique character and identity of the villages." There are 15 urban villages: Ahwatukee Foothills , Alhambra , Camelback East , Central City , Deer Valley , Desert View, Encanto , Estrella , Laveen , Maryvale , North Gateway, North Mountain, Paradise Valley, Rio Vista , and South Mountain. The urban village of Paradise Valley
1092-426: A population of nearly 1.6 million, and millions more in nearby suburbs. After the war, many of the men who had undergone their training in Arizona returned with their new families. Learning of this large untapped labor pool enticed many large industries to move their operations to the area. In 1948, high-tech industry, which would become a staple of the state's economy, arrived in Phoenix when Motorola chose Phoenix as
1176-404: A portion of its season in Phoenix in 1978, and a year later, its name was changed to Arizona Theatre Company. ATC has been performing full seasons in both Tucson and Phoenix since 1983. In May 2019, Sean Daniels became the company's artistic director. Phoenix, Arizona Phoenix ( / ˈ f iː n ɪ k s / FEE -niks ) is the capital and most populous city of
1260-471: Is 7.22 in (183 mm). The region's trademark dry and sunny weather is interrupted by sporadic Pacific storms in the winter and the arrival of the North American monsoon in the summer. Historically, the monsoon officially started when the average dew point was 55 °F (13 °C) for three days in a row—typically occurring in early July. To increase monsoon awareness and promote safety, however,
1344-616: Is also home to a plethora of native reptile species including the Western diamondback rattlesnake , Sonoran sidewinder , several other types of rattlesnakes, Sonoran coral snake , dozens of species of non-venomous snakes (including the Sonoran gopher snake and the California kingsnake ), the gila monster , desert spiny lizard , several types of whiptail lizards , the chuckwalla , desert horned lizard , western banded gecko , Sonora mud turtle , and
1428-418: Is distinct from the nearby Town of Paradise Valley . Although the urban village is part of Phoenix, the town is independent. In addition to the above urban villages, Phoenix has a variety of commonly referred-to regions and districts, such as Downtown , Midtown , Uptown, West Phoenix, North Phoenix , South Phoenix , Biltmore Area , Arcadia , and Sunnyslope . While some of the native flora and fauna of
1512-492: Is home to the only thriving feral population of rosy-faced lovebirds in the U.S. This bird is a popular birdcage pet, native to southwestern Africa. Feral birds were first observed living outdoors in 1987, probably escaped or released pets, and by 2010 the Greater Phoenix population had grown to about 950 birds. These lovebirds prefer older neighborhoods where they nest under untrimmed, dead palm tree fronds. The area
1596-558: Is in the mid-to-low 30s. It rarely drops to 32 °F (0 °C) or below. Snow is rare. In July 2023, it became the first major city in the US to have an average monthly temperature of over 100 °F (38 °C) with an average daily mean temperature for the month at 102.7 °F (39 °C), which is also the hottest month ever recorded in the city. That same month the city had an unprecedented streak of 31 days with 110 °F (43 °C)+ highs that lasted from June 30 to July 30. That year
1680-527: Is in the south-central portion of Arizona; about halfway between Tucson to the southeast and Flagstaff to the north, in the Southwestern United States . By car, the city is approximately 150 miles (240 kilometers) north of the US–Mexico border at Sonoyta and 180 mi (290 km) north of the border at Nogales . The metropolitan area is known as the "Valley of the Sun" due to its location in
1764-588: Is so common, nearly all homes in Phoenix have air conditioning , though poorer residents may not be able to afford to repair or operate them when needed. Maricopa County, which includes Phoenix, was ranked seventh for most ozone pollution in the United States according to the American Lung Association . Vehicle emissions are cited as precursors to ozone formation. Phoenix also has high levels of particulate pollution; although, cities in California lead
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#17328701187121848-462: Is the presence of Africanized bees which can be extremely dangerous—even lethal—when provoked. The Arizona Upland subdivision of the Sonoran Desert (of which Phoenix is a part) has "the most structurally diverse flora in the United States." One of the most well-known types of succulents, the giant saguaro cactus , is found throughout the city and its neighboring environs. Other native species are
1932-752: The Arizona Veterans Memorial Coliseum opened at the Arizona State Fairgrounds , west of downtown. When Phoenix was awarded an NBA franchise in 1968, which would be called the Phoenix Suns , they played their home games at the Coliseum until 1992, after which they moved to America West Arena . In 1968, President Lyndon B. Johnson approved the Central Arizona Project , assuring future water supplies for Phoenix, Tucson, and
2016-511: The Carnegie Free Library opened seven years later, on February 18, 1908, dedicated by Benjamin Fowler. The National Reclamation Act was signed by President Theodore Roosevelt in 1902, which allowed dams to be built on waterways in the west for reclamation purposes. The first dam constructed under the act, Salt River Dam#1 , began in 1903. It supplied both water and electricity, becoming
2100-775: The First National Bank Plaza , the Valley Center (the tallest building in Arizona), and the Arizona Bank building . On September 25, 1981, Phoenix resident Sandra Day O'Connor broke the gender barrier on the U.S. Supreme Court , when she was sworn in as the first female justice. In 1985, the Palo Verde Nuclear Generating Station , the nation's largest nuclear power plant, began electrical production. Pope John Paul II and Mother Teresa both visited
2184-638: The Heard Building ; it was the tallest building in the state until the completion of the Luhrs Building in 1924. In 1929, Sky Harbor was officially opened, at the time owned by Scenic Airways . The city purchased it in 1935 and continues to operate it today. On March 4, 1930, former U.S. President Calvin Coolidge dedicated a dam on the Gila River named in his honor. However, the state had just been through
2268-479: The New Waddell Dam , followed. The backbone aqueduct system, which runs about 336 miles (541 km) from Lake Havasu to a terminus 14 miles (23 km) southwest of Tucson, was declared substantially complete in 1993. The new and modified dams constructed as part of the project were declared substantially complete in 1994. All of the non-Native American agricultural water distribution systems were completed in
2352-454: The Santa Fe, Prescott and Phoenix Railway in 1895 connected Phoenix to Prescott, Flagstaff, and other communities in the northern part of the territory. The increased access to commerce expedited the city's economic rise. The Phoenix Union High School was established in 1895 with an enrollment of 90. On February 25, 1901, Governor Oakes Murphy dedicated the permanent Capitol building , and
2436-500: The Sonoran Desert can be found within Phoenix city limits, most are found in the suburbs and the undeveloped desert areas that surround the city. Native mammal species include coyote , javelina , bobcat , mountain lion , desert cottontail rabbit , jackrabbit , antelope ground squirrel , mule deer , ringtail , coati , and multiple species of bats, such as the Mexican free-tailed bat and western pipistrelle , that roost in and around
2520-528: The U.S. state of Arizona , with 1,662,607 residents as of 2024. It is the fifth-most populous city in the United States and the most populous state capital in the country. Phoenix is the most populous city of the Phoenix metropolitan area , also known as the Valley of the Sun, which in turn is part of the Salt River Valley and Arizona Sun Corridor . The metro area is the 10th-largest by population in
2604-612: The White Tank Mountains to the west, the Superstition Mountains far to the east, and both South Mountain and the Sierra Estrella to the south/southwest. Camelback Mountain , North Mountain, Sunnyslope Mountain , and Piestewa Peak are within the heart of the valley. The city's outskirts have large fields of irrigated cropland and Native American reservation lands. The Salt River runs westward through Phoenix, but
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2688-543: The desert tortoise . Native amphibian species include the Couch's spadefoot toad , Chiricahua leopard frog , and the Sonoran desert toad . Phoenix and the surrounding areas are also home to a wide variety of native invertebrates including the Arizona bark scorpion , giant desert hairy scorpion , Arizona blond tarantula , Sonoran Desert centipede , tarantula hawk wasp , camel spider , and tailless whip scorpion . Of great concern
2772-669: The organpipe , barrel , fishhook , senita , prickly pear and cholla cacti; ocotillo ; Palo Verde trees and foothill and blue paloverde ; California fan palm ; agaves ; soaptree yucca , Spanish bayonet , desert spoon , and red yucca ; ironwood ; mesquite ; and the creosote bush . Many non-native plants also thrive in Phoenix including, but not limited to, the date palm , Mexican fan palm , pineapple palm , Afghan pine , Canary Island pine , Mexican fencepost cactus , cardon cactus , acacia , eucalyptus , aloe , bougainvillea , oleander , lantana , bottlebrush , olive , citrus , and red bird of paradise . Phoenix has
2856-481: The "Five C's" anchoring Phoenix's economy. These remained the driving forces of the city until after World War II , when high-tech companies began to move into the valley and air conditioning made Phoenix's hot summers more bearable. Phoenix is the cultural center of Arizona. It is in the northeastern reaches of the Sonoran Desert and is known for its hot desert climate . The region's gross domestic product reached over $ 362 billion by 2022. The city averaged
2940-602: The 1960s, with tourism becoming the third largest industry by the end of the decade. In 1965, the Phoenix Corporate Center opened; at the time it was the tallest building in Arizona, topping off at 341 feet. The 1960s saw many other buildings constructed as the city expanded rapidly, including the Rosenzweig Center (1964), today called Phoenix City Square , the landmark Phoenix Financial Center (1964), as well as many of Phoenix's residential high-rises. In 1965
3024-432: The 1960s. In 1964, a reporter from The New Republic wrote of segregation in these terms: "Apartheid is complete. The two cities look at each other across a golf course." The continued rapid population growth led more businesses to the valley to take advantage of the labor pool, and manufacturing, particularly in the electronics sector, continued to grow. The convention and tourism industries saw rapid expansion during
3108-421: The 2000 census (a total of 124,000 people), while the entire Phoenix metropolitan area grew by 28.9% during the same period. This compares with an overall growth rate nationally during the same time frame of 9.7%. Not since 1940–50, when the city had a population of 107,000, had the city gained less than 124,000 in a decade. Phoenix's recent growth rate of 9.4% from the 2010 census is the first time it has recorded
3192-537: The 2010 census population of 4,192,887. Consisting of both Pinal and Maricopa counties, the MSA accounts for 65.5% of Arizona's population. Phoenix only contributed 13% to the total growth rate of the MSA, down significantly from its 33% share during the prior decade. Phoenix is also part of the Arizona Sun Corridor megaregion (MR), which is the tenth most populous of the 11 MRs, and the eighth largest by area. It had
3276-734: The Central Arizona Project (CAP) aimed at providing Arizona's share of the Colorado River to the state. McFarland's efforts failed as senator; however, they laid a critical foundation for the eventual passage of the CAP in the late 1960s. According to the Arizona Republic , Senator Barry Goldwater , Senator Hayden , Representative Morris Udall , US Secretary of the Interior Stewart Udall and other Arizona leaders teamed up on
3360-675: The Gila River Valley, from Florence in the east to the Estrellas in the west. Their crops included corn, beans, and squash for food as well as cotton and tobacco. They banded with the Maricopa for protection against incursions by the Yuma and Apache tribes. The Maricopa are part of the larger Yuma people; however, they migrated east from the lower Colorado and Gila Rivers in the early 1800s, when they began to be enemies with other Yuma tribes, settling among
3444-508: The Hohokam. Other nearby settlements later merged to become the city of Tempe . The history of Phoenix begins with Jack Swilling , a Confederate veteran of the Civil War who prospected in the nearby mining town of Wickenburg in the newly formed Arizona Territory . As he traveled through the Salt River Valley in 1867, he saw a potential for farming to supply Wickenburg with food. He also noted
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3528-487: The National Weather Service decreed that starting in 2008, June 15 would be the official "first day" of the monsoon, and it would end on September 30. When active, the monsoon raises humidity levels and can cause heavy localized precipitation, flash floods, hail, destructive winds, and dust storms —which can rise to the level of a haboob in some years. As of 2020, Phoenix was the fifth most populous city in
3612-785: The Orme Division was reformulated and renamed the Regulatory Storage Division. Upon completion, the Granite Reef Division was renamed the Hayden-Rhodes Aqueduct, and the Salt-Gila Division was renamed the Fannin-McFarland Aqueduct. The 456 billion gallons (1.4 million acre feet) of water is lifted by up to 2,900 feet by 14 pumps using 2.5 million MWh of electricity each year [285 MW], making CAP
3696-575: The Phoenix Concept 2000 plan which split the city into urban villages, each with its own village core where greater height and density was permitted, further shaping the free-market development culture. The nine original villages have expanded to 15 over the years (see Cityscape below). This officially turned Phoenix into a city of many nodes, which would later be connected by freeways. The Phoenix Symphony Hall opened in 1972; other major structures which saw construction downtown during this decade were
3780-461: The Salt River Valley. It lies at a mean elevation of 1,086 feet (331 m), in the northern reaches of the Sonoran Desert . Other than the mountains in and around the city, Phoenix's topography is generally flat, which allows the city's main streets to run on a precise grid with wide, open-spaced roadways. Scattered, low mountain ranges surround the valley: McDowell Mountains to the northeast,
3864-469: The United States , with the census bureau placing its population at 1,608,139, edging out Philadelphia with a population of 1,567,872. In the aftermath of the Great Recession, Phoenix had a population of 1,445,632 according to the 2010 United States census , the sixth largest city and still the most populous state capital in the United States. Prior to the Great Recession, in 2006, Phoenix's population
3948-415: The United States with approximately 4.95 million people as of 2020 , making it the most populous in the Southwestern United States . Phoenix, the seat of Maricopa County , is the largest city by population and area in Arizona, with an area of 517.9 square miles (1,341 km ), and is also the 11th-largest city by area in the United States. Phoenix was settled in 1867 as an agricultural community near
4032-436: The United States, the large area gives it a low density rate of approximately 2,797 people per square mile. In comparison, Philadelphia , the sixth most populous city with nearly the same population as Phoenix, has a density of over 11,000 people per square mile. Like most of Arizona, Phoenix does not observe daylight saving time . In 1973, Governor Jack Williams argued to the U.S. Congress that energy use would increase in
4116-512: The Valley in 1987. There was an influx of refugees due to low-cost housing in the Sunnyslope area in the 1990s, resulting in 43 different languages being spoken in local schools by 2000. The new 20-story City Hall opened in 1992. Phoenix has maintained a growth streak in recent years, growing by 24.2% before 2007. This made it the second-fastest-growing metropolitan area in the United States, surpassed only by Las Vegas . In 2008, Squaw Peak,
4200-516: The agricultural corridor between them. The following year, Pope Paul VI created the Diocese of Phoenix on December 2, by splitting the Archdiocese of Tucson, with Edward A. McCarthy as the first Bishop. In the 1970s the downtown area experienced a resurgence, with a level of construction activity not seen again until the urban real estate boom of the 2000s. By the end of the decade, Phoenix adopted
4284-571: The area. After the departure of the Hohokam, groups of Akimel O'odham (commonly known as Pima), Tohono O'odham , and Maricopa tribes began to use the area, as well as segments of the Yavapai and Apache. The O'odham were offshoots of the Sobaipuri tribe, who in turn were thought to be the descendants of the Hohokam. The Akimel O'odham were the major group in the area. They lived in small villages with well-defined irrigation systems that spread over
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#17328701187124368-599: The city also had a record 55 days of daily highs topping 110 °F (43 °C)+, which also made summer of 2023 the hottest on record there, until it was beaten by the summer of 2024 with the hottest ever June at 97.0 °F (36 °C), the third hottest august August at 98.7 °F (37 °C) and the 2nd hottest July record at 101.1 °F (38 °C) by average daily temperature respectively. That same year in 2024, it also recorded an unprecedented 113 day streak of daily highs topping 100 °F (38 °C)+ that lasted from May 27 to September 16. Because extreme heat
4452-416: The city's second tallest mountain, was renamed Piestewa Peak after Army Specialist Lori Ann Piestewa , an Arizonan and the first Native American woman to die in combat while serving in the U.S. military, as well as being the first American female casualty of the 2003 Iraq War . 2008 also saw Phoenix as one of the cities hardest hit by the subprime mortgage crisis , and by early 2009 the median home price
4536-444: The city. There are many species of native birds, including Costa's hummingbird , Anna's hummingbird , Gambel's quail , Gila woodpecker , mourning dove , white-winged dove , the greater roadrunner , the cactus wren , and many species of raptors, including falcons , hawks , owls , vultures (such as the turkey vulture and black vulture ), and eagles , including the golden and the bald eagle . The greater Phoenix region
4620-463: The confluence of the Salt and Gila Rivers and was incorporated as a city in 1881. It became the capital of Arizona Territory in 1889. Its canal system led to a thriving farming community with the original settlers' crops, such as alfalfa , cotton , citrus , and hay , remaining important parts of the local economy for decades. Cotton, cattle , citrus, climate , and copper were known locally as
4704-619: The delivery of power and energy over the transmission facilities to delivery points within the Central Arizona Project service area. Construction of the project began in 1973 with the award of a contract for the Havasu Intake Channel Dike and excavation for the Havasu Pumping Plant (later renamed as the Mark Wilmer Pumping Plant) on the shores of Lake Havasu . Construction of the other project features, such as
4788-559: The desert land arable, and paths of these canals were used for the Arizona Canal , Central Arizona Project Canal, and the Hayden-Rhodes Aqueduct . They also carried out extensive trade with the nearby Ancient Puebloans , Mogollon , and Sinagua , as well as with the more distant Mesoamerican civilizations. It is believed periods of drought and severe floods between 1300 and 1450 led to the Hohokam civilization's abandonment of
4872-500: The eroded mounds of dirt that indicated previous canals dug by native peoples who had long since left the area. He formed the Swilling Irrigation and Canal Company that year, dug a large canal that drew in river water, and erected several crop fields in a location that is now within the eastern portion of central Phoenix near its airport. Other settlers soon began to arrive, appreciating the area's fertile soil and lack of frost, and
4956-476: The evening should Arizona observe DST. He went on to say energy use would also rise early in the day "because there would be more lights on in the early morning." Additionally, he said daylight saving time would cause children to go to school in the dark. Since 1979, the city of Phoenix has been divided into urban villages , many of which are based upon historically significant neighborhoods and communities that have since been annexed into Phoenix. Each village has
5040-630: The existing communities of the Akimel O'odham. The Tohono O'odham also lived in the region, but largely to the south and all the way to the Mexican border. The O'odham lived in small settlements as seasonal farmers who took advantage of the rains, rather than the large-scale irrigation of the Akimel. They grew crops such as sweet corn, tapery beans, squash, lentils, sugar cane, and melons, as well as taking advantage of native plants such as saguaro fruits, cholla buds, mesquite tree beans, and mesquite candy (sap from
5124-402: The extreme heat experienced in Phoenix and the surrounding areas during its long summers. There was more new construction in Phoenix in 1959 alone than from 1914 to 1946. Like many emerging American cities at the time, Phoenix's spectacular growth did not occur evenly. It largely took place on the city's north side, a region that was nearly all Caucasian. In 1962, one local activist testified at
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#17328701187125208-516: The farmhouse Swilling constructed became a frequently-visited location in the valley. Lord Darrell Duppa was one of the original settlers in Swilling's party, and he suggested the name "Phoenix", as it described a city born from the ruins of a former civilization. The Board of Supervisors in Yavapai County officially recognized the new town on May 4, 1868, and the first post office was established
5292-551: The first multi-purpose dam, and Roosevelt attended the official dedication on May 18, 1911. At the time, it was the largest masonry dam in the world, forming a lake in the mountains east of Phoenix. The dam would be renamed after Teddy Roosevelt in 1917, and the lake would follow suit in 1959. On February 14, 1912, Phoenix became a state capital, as Arizona was admitted to the Union as the 48th state under President William Howard Taft . This occurred just six months after Taft had vetoed
5376-453: The following month with Swilling as the postmaster. In October 1870, valley residents met to select a new townsite for the valley's growing population. A new location three miles to the west of the original settlement, containing several allotments of farmland, was chosen, and lots began to officially be sold under the name of Phoenix in December of that year. This established the downtown core in
5460-424: The height of an unprecedent heatwave that caused daily highs to top 110 °F (43 °C) or higher that lasted for 31 days straight, Phoenix set its record for the warmest daily low temperature, at 97 °F (36 °C). The city averages approximately 300 days of sunshine, or over 85% of daylight hours, per year, and receives scant rainfall―the average annual total at Phoenix Sky Harbor International Airport
5544-421: The hottest of any major city in the United States. On average, there are 111 days annually with a high of at least 100 °F (38 °C), including most days from the end of May through late September. Highs top 110 °F (43 °C) an average of 21 days during the year. On June 26, 1990, the temperature reached an all-time recorded high of 122 °F (50 °C). The annual minimum temperature in Phoenix
5628-670: The initial implementation was called a "debacle" by the Tucson Weekly . The river water had a different mineral mixture and flow pattern from the aquifer water, stirring up and dislodging rust and biofilm in municipal water mains and house pipes. By the end of 1993, the city of Tucson paid about $ 145,000 to install filters in 925 homes, lost about $ 200,000 in revenues by adjusting water bills, and paid about $ 450,000 in damages claimed by homeowners for ruined pipes, water heaters, and other appliances. The city returned some houses to groundwater , but problems remained. Zinc orthophosphate
5712-576: The largest power user in Arizona. Lake Pleasant is used as a buffer. The canal loses approximately 16,000 acre-feet (5.2 billion gallons) of water each year to evaporation. It loses 9,000 acre-feet (2.9 billion gallons) annually from water seeping or leaking through the concrete. The CAP was created by the Colorado River Basin Project Act of 1968, signed by US President Lyndon B. Johnson on September 30, 1968. Senator Ernest McFarland , along with Senator Carl Hayden , lobbied for
5796-690: The late 1980s, as were most of the municipal water delivery systems. Several Native American distribution systems remain to be built; it is estimated that full development of these systems could require another 10 to 20 years. The Hayden-Rhodes Aqueduct, which carries water from Lake Havasu to the Phoenix area, includes three tunnels totaling 8.2 miles. The CAP partly funded the Brock Reservoir project with $ 28.6 million. In return for its contribution, Arizona has been awarded 100,000 acre-feet (120,000,000 m ) of water per year since 2016. The CAP project brought river water to Tucson successfully, but
5880-519: The mesquite tree). They also hunted local game such as deer, rabbit, and javelina for meat. The Mexican–American War ended in 1848, Mexico ceded its northern zone to the United States, and the region's residents became U.S. citizens. The Phoenix area became part of the New Mexico Territory . In 1863, the mining town of Wickenburg was the first to be established in Maricopa County, to
5964-472: The metropolitan areas of Phoenix and Tucson . Authorization also was included for development of facilities to deliver water to Catron , Hidalgo , and Grant counties in New Mexico , but these facilities have not been constructed because of cost considerations, a lack of demand for the water, lack of repayment capability by the users, and environmental constraints. In addition to its water supply benefits,
6048-417: The nation in this hazard. PM2.5 particulate matter, which is a component of diesel engine exhaust, and larger PM10 particles, which can come from dust, can both reach concerning levels in Phoenix. In fact, people, pets, and other animals exposed to high concentrations of PM10 dust particles―primarily from dust storms or from disturbed agricultural or construction sites―are at risk of contracting Valley Fever ,
6132-573: The northwest of Phoenix. Maricopa County had not been incorporated; the land was within Yavapai County , which included the major town of Prescott to the north of Wickenburg. The Army created Fort McDowell on the Verde River in 1865 to forestall Indian uprisings. The fort established a camp on the south side of the Salt River by 1866, which was the first settlement in the valley after the decline of
6216-498: The project also provides substantial benefits from flood control , outdoor recreation, fish and wildlife conservation, and sediment control . It also produces an unintended swale , further increasing local biodiversity. The project was subdivided, for administration and construction purposes, into the Granite Reef, Orme, Salt-Gila, Gila River , Tucson , Indian Distribution, and Colorado River divisions. During project construction,
6300-687: The riverbed is often dry or contains little water due to large irrigation diversions. South Mountain separates the community of Ahwatukee from the rest of the city. According to the United States Census Bureau, the city has an area of 517.9 sq mi (1,341 km ), of which 516.7 sq mi (1,338 km ) is land and 1.2 sq mi (3.1 km ), or 0.2%, is water. Maricopa County grew by 711% from 186,000 in 1940 to 1,509,000 by 1980, due in part to air conditioning, cheap housing, and an influx of retirees. The once "modest urban sprawl" now "grew by 'epic' proportions—not only
6384-665: The second largest growth by percentage of the MRs (behind only the Gulf Coast MR) between 2000 and 2010. Central Arizona Project The aqueduct diverts water from the Colorado River at the Bill Williams Wildlife Refuge south portion of Lake Havasu near Parker into central and southern Arizona. CAP is managed and operated by the Central Arizona Water Conservation District (CAWCD). It
6468-455: The site of its new research and development center for military electronics. Seeing the same advantages as Motorola, other high-tech companies, such as Intel and McDonnell Douglas , moved into the valley and opened manufacturing operations. By 1950, over 105,000 people resided in the city and thousands more in surrounding communities. The 1950s growth was spurred on by advances in air conditioning, which allowed homes and businesses to offset
6552-618: The successful passage of what was McFarland's intended legislation that became the CAP, "probably the state's most celebrated bipartisan achievement of the 20th century." This act provided for the US Secretary of the Interior to enter into an agreement with non-federal interests, whereby the US federal government acquired the right to 24.3 percent of the power produced at the non-federal Navajo Generating Station , Navajo Project. The agreement also includes
6636-473: The town's population stood at 2,453. By 1881, Phoenix's continued growth made the board of trustees obsolete. The Territorial Legislature passed the Phoenix Charter Bill, incorporating Phoenix and providing a mayor-council government; Governor John C. Fremont signed the bill on February 25, 1881, officially incorporating Phoenix as a city with a population of around 2,500. The railroad's arrival in
6720-546: The valley in the 1880s was the first of several events that made Phoenix a trade center whose products reached eastern and western markets. In response, the Phoenix Chamber of Commerce was organized on November 4, 1888. The city offices moved into the new City Hall at Washington and Central in 1888. The territorial capital moved from Prescott to Phoenix in 1889, and the territorial offices were also in City Hall. The arrival of
6804-486: Was $ 150,000, down from its $ 262,000 peak in 2007. Crime rates in Phoenix have fallen in recent years, and once troubled, decaying neighborhoods such as South Mountain , Alhambra , and Maryvale have recovered and stabilized. On June 1, 2023, the State of Arizona announced the decision to halt new housing development in the Phoenix metropolitan area that relies solely on groundwater due to a predicted water shortfall. Phoenix
6888-459: Was 1,512,986, the fifth largest just ahead of Philadelphia. After leading the U.S. in population growth for over a decade, the sub-prime mortgage crisis, followed by the recession, led to a slowing in the growth of Phoenix. There were approximately 77,000 people added to the population of the Phoenix metropolitan area in 2009, which was down significantly from its peak in 2006 of 162,000. Despite this slowing, Phoenix's population grew by 9.4% since
6972-668: Was an advertising slogan invented to boost tourism. During World War II, Phoenix's economy shifted to that of a distribution center, transforming into an "embryonic industrial city" with the mass production of military supplies. There were three air force fields in the area: Luke Field , Williams Field , and Falcon Field , as well as two large pilot training camps, Thunderbird Field No. 1 in Glendale and Thunderbird Field No. 2 in Scottsdale. A town that had just over 65,000 residents in 1940 became America's fifth largest city by 2020, with
7056-457: Was shepherded through Congress by Carl Hayden . The CAP delivers Colorado River water, either directly or by exchange, into central and Southern Arizona . The project was envisioned to provide water to nearly one million acres (405,000 hectares ) of irrigated agricultural land areas in Maricopa , Pinal , and Pima counties, as well as municipal water for several Arizona communities, including
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