All-time weather records — Oak Harbor, WA

Record high
93.0°F
June 1, 1970
Record low
-0.9°F
January 25, 1950
Wettest day
3.03 in
September 1, 1983

Climate change signal in Oak Harbor

15.6%

of Oak Harbor's all-time daily heat records were set in the last decade (57 of 366 records since 2015).

2.5%

of all-time daily cold records were set in the last decade (9 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
15
36
1950s
31
81
1960s
50
50
1970s
33
63
1980s
66
46
1990s
59
21
2000s
25
44
2010s
77
20
2020s
10
5

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 1945, the latest in 2025. Period of observation: 1945-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 64.9°F — Jan 19, 1981 -0.9°F — Jan 25, 1950 1.36 in — Jan 5, 2015
February 70.0°F — Feb 27, 1986 6.1°F — Feb 1, 1950 1.42 in — Feb 5, 2020
March 79.0°F — Mar 29, 2004 16.0°F — Mar 4, 1955 1.16 in — Mar 20, 1984
April 78.1°F — Apr 29, 1976 25.2°F — Apr 4, 2011 1.09 in — Apr 9, 1983
May 87.1°F — May 2, 2016 0.1°F — May 3, 2008 1.83 in — May 28, 2010
June 93.0°F — Jun 1, 1970 37.0°F — Jun 19, 1955 2.32 in — Jun 14, 1946
July 88.0°F — Jul 19, 2015 33.1°F — Jul 29, 2009 1.02 in — Jul 5, 1961
August 88.0°F — Aug 8, 1960 24.3°F — Aug 14, 2007 1.29 in — Aug 25, 2004
September 89.1°F — Sep 28, 2017 28.9°F — Sep 27, 1972 3.03 in — Sep 1, 1983
October 75.9°F — Oct 5, 2005 21.9°F — Oct 28, 1971 1.27 in — Oct 25, 1945
November 72.0°F — Nov 8, 2016 9.0°F — Nov 15, 1955 2.29 in — Nov 9, 1990
December 63.0°F — Dec 10, 2014 3.0°F — Dec 16, 1964 1.81 in — Dec 27, 1949

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