All-time weather records — Pima, AZ

Record high
114.1°F
June 30, 1994
Record low
0.0°F
February 23, 2000
Wettest day
2.80 in
September 7, 2016

Climate change signal in Pima

45.9%

of Pima's all-time daily heat records were set in the last decade (168 of 366 records since 2015).

3.6%

of all-time daily cold records were set in the last decade (13 of 366 records since 2015).

If records were spread evenly across the station's history, you'd expect roughly 5% per decade. Decade-by-decade, here's where each record-breaking day was set:

Decade Heat records set # Cold records set #
1940s
4
25
1950s
41
152
1960s
10
60
1970s
20
49
1980s
33
22
1990s
38
23
2000s
42
9
2010s
43
16
2020s
135
10

Records are the all-time daily extremes that are still standing — each daily record can only be held by one year. The station's earliest hot record was set in 1948, the latest in 2026. Period of observation: 1948-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 79.0°F — Jan 19, 1971 9.0°F — Jan 6, 1950 1.42 in — Jan 18, 1979
February 89.1°F — Feb 28, 2026 0.0°F — Feb 23, 2000 1.23 in — Feb 5, 1988
March 93.0°F — Mar 25, 2025 16.0°F — Mar 3, 2002 0.97 in — Mar 27, 1951
April 100.0°F — Apr 28, 2000 24.1°F — Apr 5, 2023 0.91 in — Apr 6, 2001
May 108.0°F — May 30, 2000 28.0°F — May 1, 1967 0.77 in — May 16, 1984
June 114.1°F — Jun 30, 1994 39.0°F — Jun 3, 1955 1.12 in — Jun 30, 1996
July 113.0°F — Jul 29, 1995 48.0°F — Jul 1, 1954 1.76 in — Jul 29, 1966
August 113.0°F — Aug 6, 2025 46.9°F — Aug 31, 1956 2.25 in — Aug 31, 1963
September 108.0°F — Sep 9, 2023 37.0°F — Sep 30, 1965 2.80 in — Sep 7, 2016
October 100.9°F — Oct 4, 2024 23.0°F — Oct 30, 1971 2.51 in — Oct 2, 1983
November 91.0°F — Nov 5, 2020 14.0°F — Nov 30, 2010 1.52 in — Nov 12, 1994
December 81.0°F — Dec 21, 2025 7.0°F — Dec 24, 1974 1.83 in — Dec 21, 1991

Click a month to see every daily record for that month in Pima.