Tucson, AZ All-Time Weather Extremes
The most extreme temperature, precipitation, and snowfall ever recorded in Tucson, from NOAA daily weather observations.
| Temperature | ||
|---|---|---|
| Record High | 116.9°F (47°C) | June 26, 1990 |
| Record Low | 15.9°F (-9°C) | January 4, 1949 and December 24, 1974 |
| Lowest High | 35.9°F (2°C) | January 3, 1949 and January 4, 1949 |
| Highest Low | 89°F (32°C) | July 22, 2006 and July 13, 2020 |
| Highest Mean | 101.5°F (39°C) | June 20, 2017 |
| Lowest Mean | 25.9°F (-3°C) | January 4, 1949 |
| Precipitation | ||
| Max in One Calendar Day | 3.93" (99.8 mm) | July 29, 1958 |
| Max in One Month | 8.06" (204.7 mm) | July 2021 |
| Least in One Month | 0.00" (0.0 mm) | January 1948 |
| Max in One Year | 21.88" (555.7 mm) | 1983 |
| Least in One Year | 4.18" (106.2 mm) | 2020 |
| Snowfall | ||
| Max in One Calendar Day | 6.8" (17.3 cm) | December 8, 1971 |
| Max in One Month | 6.8" (17.3 cm) | December 1971 |
| Max in One Season | 6.8" (17.3 cm) | 1971-72 |
| Max in One Year | 8.3" (21.0 cm) | 1987 |
| Earliest Snow | 0.1" (0.3 cm) | November 15, 1964 |
| Earliest Measurable Snow | 0.1" (0.3 cm) | November 15, 1964 |
| Latest Snow | 2.0" (5.1 cm) | April 16, 1976 |
| Latest Measurable Snow | 2.0" (5.1 cm) | April 16, 1976 |
| Period of Record | ||
| Temperature | June 1, 1946 – February 6, 2025 | |
| Precipitation | June 1, 1946 – February 6, 2025 | |
| Snowfall | June 1, 1946 – February 2, 2025 | |
Note: Records compiled from NOAA GHCN-Daily observations at TUCSON INTL AP (6 mi from Tucson, 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 Tucson, AZ?
The all-time record high in Tucson, AZ is 116.9°F (47°C), set on June 26, 1990.
What is the coldest temperature ever recorded in Tucson, AZ?
The all-time record low in Tucson, AZ is 15.9°F (-9°C), set on January 4, 1949 and December 24, 1974.
What is the most rain Tucson, AZ has ever had in one day?
The most precipitation recorded in one calendar day near Tucson, AZ is 3.93 inches, on July 29, 1958.
What is the biggest snowfall ever recorded in Tucson, AZ?
The most snow recorded in one calendar day near Tucson, AZ is 6.8 inches, on December 8, 1971.
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