All-time weather records — Friday Harbor, WA

Record high
111.0°F
June 8, 2019
Record low
0.0°F
June 13, 2000
Wettest day
2.50 in
December 21, 2020

Climate change signal in Friday Harbor

60.9%

of Friday Harbor's all-time daily heat records were set in the last decade (223 of 366 records since 2015).

16.1%

of all-time daily cold records were set in the last decade (59 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 #
1990s
12
46
2000s
87
187
2010s
148
103
2020s
119
30

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 1998, the latest in 2026. Period of observation: 1998-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 62.1°F — Jan 29, 2024 10.2°F — Jan 12, 2024 1.23 in — Jan 17, 2005
February 71.1°F — Feb 27, 2025 17.2°F — Feb 25, 2011 1.72 in — Feb 15, 2016
March 82.9°F — Mar 16, 2024 19.2°F — Mar 10, 2009 0.75 in — Mar 11, 2002
April 84.0°F — Apr 13, 2019 27.1°F — Apr 1, 2008 0.79 in — Apr 1, 2009
May 98.1°F — May 15, 2023 1.2°F — May 10, 2007 1.07 in — May 21, 2024
June 111.0°F — Jun 8, 2019 0.0°F — Jun 13, 2000 0.83 in — Jun 21, 2025
July 97.0°F — Jul 4, 2023 39.9°F — Jul 3, 2000 0.72 in — Jul 3, 1998
August 93.0°F — Aug 12, 2021 42.1°F — Aug 12, 2000 1.37 in — Aug 24, 2004
September 89.1°F — Sep 3, 2017 0.1°F — Sep 15, 2014 0.58 in — Sep 28, 2013
October 78.1°F — Oct 7, 2023 26.1°F — Oct 31, 2002 2.44 in — Oct 16, 2003
November 66.0°F — Nov 4, 2023 12.2°F — Nov 23, 2010 1.87 in — Nov 15, 2021
December 59.0°F — Dec 29, 2023 8.2°F — Dec 20, 2008 2.50 in — Dec 21, 2020

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