All-time weather records — Dewey, OK

Record high
115.0°F
July 14, 1954
Record low
-27.8°F
February 10, 2011
Wettest day
7.07 in
September 30, 1986

Climate change signal in Dewey

10.4%

of Dewey's all-time daily heat records were set in the last decade (38 of 366 records since 2015).

9.3%

of all-time daily cold records were set in the last decade (34 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
42
31
1930s
89
42
1940s
16
25
1950s
51
37
1960s
29
49
1970s
19
31
1980s
19
39
1990s
17
25
2000s
26
26
2010s
32
39
2020s
26
22

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 1920, the latest in 2026. Period of observation: 1920-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 80.1°F — Jan 28, 2015 -25.1°F — Jan 22, 1930 2.25 in — Jan 5, 2005
February 91.0°F — Feb 12, 1962 -27.8°F — Feb 10, 2011 4.44 in — Feb 23, 1985
March 96.1°F — Mar 21, 2026 -8.0°F — Mar 12, 1948 4.06 in — Mar 5, 2004
April 104.0°F — Apr 12, 1972 9.0°F — Apr 13, 1957 3.57 in — Apr 11, 1994
May 100.0°F — May 31, 1934 30.0°F — May 1, 1960 5.03 in — May 20, 2019
June 113.0°F — Jun 30, 1936 41.0°F — Jun 2, 1956 4.55 in — Jun 12, 1957
July 115.0°F — Jul 14, 1954 48.0°F — Jul 31, 1971 5.15 in — Jul 13, 1986
August 113.0°F — Aug 2, 2011 46.0°F — Aug 22, 1949 5.50 in — Aug 8, 1986
September 109.9°F — Sep 3, 2012 28.9°F — Sep 23, 1995 7.07 in — Sep 30, 1986
October 99.0°F — Oct 6, 1939 16.0°F — Oct 30, 1925 5.25 in — Oct 7, 1936
November 90.0°F — Nov 6, 1945 3.0°F — Nov 29, 1976 4.01 in — Nov 21, 1979
December 84.0°F — Dec 27, 2025 -13.0°F — Dec 23, 1989 3.47 in — Dec 20, 1991

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