All-time weather records — Cosmopolis, WA

Record high
108.0°F
June 28, 2021
Record low
6.1°F
January 14, 1950
Wettest day
8.57 in
January 5, 2015

Climate change signal in Cosmopolis

6%

of Cosmopolis's all-time daily heat records were set in the last decade (22 of 366 records since 2015).

0.8%

of all-time daily cold records were set in the last decade (3 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 #
1890s
27
21
1900s
47
77
1910s
24
78
1920s
22
52
1930s
39
51
1940s
37
16
1950s
30
23
1960s
32
12
1970s
17
8
1980s
19
16
1990s
25
3
2000s
16
3
2010s
25
3
2020s
6
3

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 1891, the latest in 2021. Period of observation: 1891-2022.

Records by month

Month Hottest day Coldest day Wettest day
January 66.0°F — Jan 30, 1940 6.1°F — Jan 14, 1950 8.57 in — Jan 5, 2015
February 73.0°F — Feb 26, 1905 8.1°F — Feb 8, 1933 4.60 in — Feb 10, 1990
March 82.0°F — Mar 9, 1905 18.0°F — Mar 15, 1906 4.59 in — Mar 19, 1997
April 88.0°F — Apr 12, 1904 12.9°F — Apr 24, 1908 3.80 in — Apr 28, 1981
May 96.1°F — May 21, 1963 21.9°F — May 1, 1900 2.36 in — May 16, 1941
June 108.0°F — Jun 28, 2021 32.0°F — Jun 5, 1911 2.97 in — Jun 12, 2000
July 105.1°F — Jul 23, 1891 34.0°F — Jul 5, 1907 1.82 in — Jul 2, 1932
August 105.1°F — Aug 10, 1981 36.0°F — Aug 27, 1910 2.33 in — Aug 29, 1991
September 100.0°F — Sep 3, 1988 30.0°F — Sep 13, 1907 2.98 in — Sep 21, 1972
October 86.0°F — Oct 1, 1987 19.0°F — Oct 31, 1935 4.87 in — Oct 21, 2003
November 73.0°F — Nov 9, 1904 10.9°F — Nov 14, 1955 7.03 in — Nov 24, 1990
December 63.0°F — Dec 10, 1924 6.1°F — Dec 12, 1919 5.46 in — Dec 2, 1977

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