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| Phoenix Apartment Locator Services : Phoenix Apartments |  | Contents | |
| Climate |
| Clear blue skies are typical, with an average of 300 sunny days a year. The temperature reaches or exceeds 100 °F (38 °C) on an average of 89 days during the year, including most days from early June through early September. In every year except 1911, the temperature has soared to 110 °F (43 °C) or higher. On June 26, 1990, the temperature reached an all-time high of 122 °F (50 °C). The dry Arizona air makes the hot temperatures more tolerable early in the season; however, the influx of monsoonal moisture has been known to make August in Phoenix almost as humid as summers in the Southeastern United States. |
Phoenix Skyline |
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| The normal annual rainfall at Sky Harbor International Airport is 8.29 inches (211 mm). March is the wettest month of the year (1.07 inches or 27 mm). Rain is particularly scarce from April through June. Although thunderstorms occur on occasion during every month of the year, they are most common during the monsoon season from July to mid-September as humid air surges in from the Gulf of California. Winter storms moving inland from the Pacific Ocean occasionally produce significant rains but occur infrequently. Fog is observed from time to time during the winter months. Blowing dust and sand, which also can restrict visibility, accompany the collapse of monsoonal thunderstorms. The wind-front creates a haboob, a wall of dust thousands of feet high. Severe thunderstorms—bringing strong winds, large hail, or tornadoes—can occur during any month of the year, but only happen an average of once or twice per year somewhere in the metropolitan area. |
| At the airport, the mean date of first frost is December 12 and the last is February 7; however, these dates do not represent the city as a whole because the frequency of freezes varies considerably among terrain types and elevations. Some areas of Phoenix may see frost for a month or more before and after the airport readings. The earliest frost on record occurred November 3, 1946, and the latest April 4, 1945. Successive winters without any frosts at the airport have been recorded, and the longest period without a freeze stretched from November 23, 1979 to January 31, 1985. |
| Snow falls roughly one year in four, but since recording commenced in 1896 it has accumulated to 0.1 inch (0.25 cm) only 7 times. The heaviest snowstorm occurred on January 20-21, 1937, when 1 to 4 inches fell (2 to 10 cm) in parts of the city and did not melt entirely for four days. Another 1.0 inch (2.5 cm) fell on January 20, 1933. On February 2, 1935, 0.5 inches (1 cm) fell. Most recently, 0.4 inches (1 cm) fell on December 21-22, 1990. Snow also fell on March 12, 1917 November 28, 1919, and December 11, 1985. |
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