All-time weather records — Coulee City, WA

Record high
109.9°F
July 19, 1960
Record low
-20.0°F
February 8, 1933
Wettest day
20.00 in
January 9, 1953

Climate change signal in Coulee City

4.6%

of Coulee City's all-time daily heat records were set in the last decade (17 of 366 records since 2015).

4.6%

of all-time daily cold records were set in the last decade (17 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
·
2
1930s
56
48
1940s
34
42
1950s
35
50
1960s
57
47
1970s
56
59
1980s
49
61
1990s
37
24
2000s
16
14
2010s
23
16
2020s
3
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 1930, the latest in 2020. Period of observation: 1927-2020.

Records by month

Month Hottest day Coldest day Wettest day
January 54.0°F — Jan 14, 2014 -18.9°F — Jan 17, 1950 20.00 in — Jan 9, 1953
February 62.1°F — Mar 1, 1968 -20.0°F — Feb 8, 1933 1.70 in — Feb 27, 1999
March 73.0°F — Mar 26, 1960 1.9°F — Mar 4, 2019 0.95 in — Mar 22, 2016
April 93.0°F — Apr 24, 1977 3.0°F — Apr 9, 2002 0.85 in — Apr 12, 1986
May 100.0°F — May 30, 1986 24.1°F — May 1, 1959 1.80 in — May 29, 1948
June 107.1°F — Jun 29, 2015 28.0°F — Jun 1, 1976 1.78 in — Jun 8, 1987
July 109.9°F — Jul 19, 1960 32.0°F — Jul 14, 1983 1.40 in — Jul 13, 1975
August 109.9°F — Aug 5, 1961 30.9°F — Aug 22, 1960 1.08 in — Aug 2, 1996
September 100.9°F — Sep 4, 1988 26.1°F — Sep 17, 1965 1.81 in — Sep 3, 1979
October 86.0°F — Oct 7, 1943 3.9°F — Oct 30, 1935 0.78 in — Oct 31, 1994
November 69.1°F — Nov 16, 1999 -8.0°F — Nov 23, 1985 1.15 in — Nov 26, 1944
December 55.9°F — Dec 16, 1999 -18.9°F — Dec 23, 1983 1.10 in — Dec 7, 2015

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