All-time weather records — Pullman, WA

Record high
109.9°F
August 4, 1961
Record low
-32.1°F
December 30, 1968
Wettest day
3.18 in
January 31, 1946

Climate change signal in Pullman

23.2%

of Pullman's all-time daily heat records were set in the last decade (85 of 366 records since 2015).

7.1%

of all-time daily cold records were set in the last decade (26 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
42
60
1950s
24
57
1960s
37
50
1970s
24
44
1980s
46
51
1990s
41
27
2000s
51
39
2010s
50
23
2020s
51
15

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 1940, the latest in 2026. Period of observation: 1940-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 59.0°F — Jan 27, 2015 -29.0°F — Jan 26, 1957 3.18 in — Jan 31, 1946
February 66.0°F — Feb 25, 1986 -24.0°F — Feb 2, 1996 1.32 in — Feb 8, 1996
March 77.0°F — Mar 27, 2025 -6.0°F — Mar 4, 2019 1.85 in — Mar 31, 1971
April 88.0°F — Apr 30, 1987 12.9°F — Apr 19, 1966 1.77 in — Apr 24, 1996
May 97.0°F — May 24, 2001 21.0°F — May 8, 2002 1.35 in — May 8, 1956
June 106.0°F — Jun 30, 2021 30.0°F — Jun 4, 1962 1.47 in — Jun 16, 1963
July 104.0°F — Jul 1, 2021 32.0°F — Jul 31, 1945 0.77 in — Jul 14, 1988
August 109.9°F — Aug 4, 1961 30.0°F — Aug 20, 1945 2.45 in — Aug 10, 1952
September 102.9°F — Sep 1, 2022 19.9°F — Sep 29, 1983 1.61 in — Sep 16, 1947
October 90.0°F — Oct 1, 1992 7.0°F — Oct 31, 2002 1.71 in — Oct 27, 1994
November 71.1°F — Nov 1, 1988 -14.1°F — Nov 15, 1955 1.92 in — Nov 1, 1994
December 63.0°F — Dec 2, 2021 -32.1°F — Dec 30, 1968 1.64 in — Dec 28, 1945

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