Phoenix, AZ All-Time Weather Extremes
The most extreme temperature, precipitation, and snowfall ever recorded in Phoenix, from NOAA daily weather observations.
| Temperature | ||
|---|---|---|
| Record High | 122°F (50°C) | June 26, 1990 and July 28, 1995 |
| Record Low | 19.9°F (-7°C) | January 3, 1970 and January 8, 1971 |
| Lowest High | 44°F (7°C) | December 8, 1978 |
| Highest Low | 96°F (36°C) | August 5, 2021 |
| Highest Mean | 105.0°F (41°C) | July 29, 1995 and July 22, 2006 |
| Lowest Mean | 32.5°F (0°C) | December 8, 1978 |
| Precipitation | ||
| Max in One Calendar Day | 2.73" (69.3 mm) | August 24, 1982 |
| Max in One Month | 6.57" (166.9 mm) | January 1993 |
| Least in One Month | 0.00" (0.0 mm) | October 1999 |
| Max in One Year | 17.78" (451.6 mm) | 1992 |
| Least in One Year | 2.93" (74.5 mm) | 2012 |
| Period of Record | ||
| Temperature | January 1, 1970 – July 24, 2026 | |
| Precipitation | January 1, 1970 – July 24, 2026 | |
| Snowfall | January 1, 1970 – June 30, 2026 | |
Note: Records compiled from NOAA GHCN-Daily observations at YOUNGTOWN (8 mi from Phoenix, AZ). Quality-flagged readings are excluded. Monthly and annual totals require substantially complete reporting for “least” records.
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Frequently Asked Questions
What is the hottest temperature ever recorded in Phoenix, AZ?
The all-time record high in Phoenix, AZ is 122°F (50°C), set on June 26, 1990 and July 28, 1995.
What is the coldest temperature ever recorded in Phoenix, AZ?
The all-time record low in Phoenix, AZ is 19.9°F (-7°C), set on January 3, 1970 and January 8, 1971.
What is the most rain Phoenix, AZ has ever had in one day?
The most precipitation recorded in one calendar day near Phoenix, AZ is 2.73 inches, on August 24, 1982.
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