All-time weather records — Tempe, AZ

Record high
118.9°F
June 26, 1970
Record low
9.0°F
November 21, 1988
Wettest day
3.87 in
September 15, 1969

Climate change signal in Tempe

28.7%

of Tempe's all-time daily heat records were set in the last decade (105 of 366 records since 2015).

1.9%

of all-time daily cold records were set in the last decade (7 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 #
1950s
21
96
1960s
51
110
1970s
71
112
1980s
37
15
1990s
23
5
2000s
44
9
2010s
39
17
2020s
80
2

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 1953, the latest in 2026. Period of observation: 1953-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 87.1°F — Jan 20, 1971 18.0°F — Jan 13, 2013 1.47 in — Jan 26, 2013
February 93.9°F — Feb 27, 2026 19.0°F — Feb 20, 1955 1.32 in — Feb 8, 1994
March 105.1°F — Mar 19, 2026 24.1°F — Mar 3, 1971 1.55 in — Mar 3, 1983
April 105.1°F — Apr 20, 1989 30.0°F — Apr 3, 1977 0.92 in — Apr 6, 2001
May 111.9°F — May 27, 1974 35.1°F — May 1, 1967 1.21 in — May 12, 1957
June 118.9°F — Jun 26, 1970 45.0°F — Jun 3, 1971 0.72 in — Jun 19, 1967
July 118.0°F — Jul 14, 1970 53.1°F — Jul 7, 1969 1.67 in — Jul 26, 2006
August 118.9°F — Aug 2, 1972 52.0°F — Aug 23, 1968 2.01 in — Aug 3, 1964
September 115.0°F — Sep 5, 2024 44.1°F — Sep 7, 2009 3.87 in — Sep 15, 1969
October 111.9°F — Oct 1, 2024 26.1°F — Oct 30, 1971 2.02 in — Oct 2, 2018
November 98.1°F — Nov 6, 2020 9.0°F — Nov 21, 1988 1.80 in — Nov 1, 1987
December 88.0°F — Dec 2, 2017 19.9°F — Dec 28, 1954 1.97 in — Dec 15, 1967

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