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Climate/Weather

Because elevations in Arizona range from 70 feet on the Colorado River to 12,633 feet on Humphreys Peak, one of the San Francisco Peaks, it is possible, on any given day, for the coldest or hottest temperature in the United States to be recorded in Arizona.

The coldest recorded temperature in Arizona was -40 degrees recorded at Hawley Lake on January 7, 1971.  The hottest recorded temperature in Arizona was 128 degrees recorded in Lake Havasu City on June 29, 1994.   For more information, see:   State Extremes.   For additional information about the climate in Lake Havasu City, at Hawley Lake and at other locations in Arizona, see Arizona Climate Summaries at the Western Regional Climate Center site.

The temperature in Phoenix reached 122 degrees on June 26, 1990.  For additional information about the weather in Phoenix, see the National Weather Service site or check out NOAA's Past Weather site (see instructions below).

See also:

• Arizona Dept. of Transportation:  AZ511 Road and Weather conditions
• Arizona State Climate Office
• Arizona Thunderstorm Chase Project:  Basics of the Arizona Monsoon and Desert Meteorology
• National Arboretum
  • USDA Plant Hardiness Zones
• National Climatic Data Center
• National Weather Service:
  • The Monsoon
  • Weather Forecast for Various Arizona Locations
• National Oceanic and Atmospheric Administration (NOAA):
  • El Niño Page
  • La Niña Page
  • Past Weather
    NOTE:   Move half way down the NOAA Climate Services page until you see "Past Weather" in the righthand column then enter a place and select a date, e.g., Tempe, AZ December 31, 1948.
• University of Arizona College of Agriculture and Life Sciences:  Arizona Plant Climate Zones
• Western Regional Climate Center

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