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| All-time Tucson daily and monthly extremes |
| for the period (1894-2022) |
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Temperature
| Record High: |
117 deg F on June 26, 1990 |
| Record Low: |
6 deg F on January 7, 1913 |
| Warmest year (avg.): |
73.3 deg F in 2017 |
| Warmest month (avg.): |
92.0 deg F in August 2020 |
| Coolest year (avg.): |
65.0 deg F in 1905 & 1912 |
| Coldest month (avg.): |
41.2 deg F in January 1937 |
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Precipitation
| Record one-day (mid-mid): |
3.93 inches on July 29, 1958 |
| Wettest year: |
24.17 inches in 1905 |
| Wettest month: |
8.06 inches in July 2021 |
| Driest year: |
4.17 inches in 2020 |
| Driest month: |
0.00 inches in May 2022 (last of 102 occurrences) |
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Snowfall
| Record one-day (mid-mid) |
6.8 inches on December 8, 1971 |
| Record yearly total: |
8.3 inches in 1987 |
| Record seasonal (July-June) |
6.8 inches in 1971-72 season |
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| Check NOWdata for additional historical climate data for Tucson & other sites across SE Arizona |
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