All-time weather records — Kelso, WA

Record high
108.0°F
August 10, 1981
Record low
-20.0°F
January 21, 1930
Wettest day
4.04 in
November 6, 2006

Climate change signal in Kelso

19.9%

of Kelso's all-time daily heat records were set in the last decade (73 of 366 records since 2015).

4.4%

of all-time daily cold records were set in the last decade (16 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 #
1920s
18
44
1930s
28
157
1940s
37
36
1950s
39
40
1960s
29
17
1970s
25
22
1980s
29
17
1990s
35
10
2000s
44
7
2010s
45
7
2020s
37
9

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 1925, the latest in 2025. Period of observation: 1925-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 64.9°F — Jan 28, 1931 -20.0°F — Jan 21, 1930 3.45 in — Jan 7, 2009
February 73.0°F — Feb 28, 1968 1.9°F — Feb 2, 1950 3.78 in — Feb 24, 1986
March 82.0°F — Mar 26, 2025 19.0°F — Mar 5, 1955 2.90 in — Mar 31, 1931
April 90.0°F — Apr 18, 2016 24.1°F — Apr 3, 1929 2.42 in — Apr 5, 1991
May 99.0°F — May 23, 2001 27.0°F — May 8, 1930 1.48 in — May 4, 1926
June 107.1°F — Jun 27, 2021 30.0°F — Jun 3, 2000 1.87 in — Jun 7, 1936
July 105.1°F — Jul 2, 1942 32.0°F — Jul 25, 1930 2.20 in — Jul 16, 1978
August 108.0°F — Aug 10, 1981 35.1°F — Aug 16, 1935 1.97 in — Aug 22, 2004
September 104.0°F — Sep 5, 1944 28.9°F — Sep 24, 1926 2.47 in — Sep 14, 1935
October 90.0°F — Oct 2, 1987 23.0°F — Oct 30, 2019 2.60 in — Oct 3, 1927
November 77.0°F — Nov 6, 1951 8.1°F — Nov 15, 1955 4.04 in — Nov 6, 2006
December 66.0°F — Dec 3, 1934 3.9°F — Dec 8, 1972 3.67 in — Dec 2, 1977

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