All-time weather records — Pasco, WA

Record high
115.0°F
June 27, 2021
Record low
-18.9°F
January 4, 2004
Wettest day
3.53 in
November 24, 2000

Climate change signal in Pasco

44.5%

of Pasco's all-time daily heat records were set in the last decade (163 of 366 records since 2015).

27.6%

of all-time daily cold records were set in the last decade (101 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
16
6
1990s
29
41
2000s
106
145
2010s
101
128
2020s
114
46

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 2026. Period of observation: 1945-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 66.9°F — Jan 7, 2002 -18.9°F — Jan 4, 2004 0.66 in — Jan 2, 2009
February 69.1°F — Feb 10, 2022 -1.8°F — Feb 6, 2019 0.55 in — Feb 23, 2002
March 80.1°F — Mar 19, 2024 -0.8°F — Mar 4, 2019 0.45 in — Mar 24, 2017
April 93.9°F — Apr 30, 1998 21.2°F — Apr 1, 2008 0.54 in — Apr 30, 2022
May 100.9°F — May 23, 2001 28.0°F — May 5, 1999 0.75 in — May 17, 2025
June 115.0°F — Jun 27, 2021 37.0°F — Jun 7, 2002 1.10 in — Jun 1, 2011
July 113.0°F — Jul 14, 2001 42.1°F — Jul 5, 1999 0.50 in — Jul 16, 2012
August 111.0°F — Aug 4, 1998 39.9°F — Aug 31, 2008 0.45 in — Aug 14, 2014
September 102.0°F — Sep 1, 2022 26.1°F — Sep 24, 2000 0.72 in — Sep 30, 2005
October 90.0°F — Oct 6, 2020 9.0°F — Oct 31, 2002 0.88 in — Oct 30, 2016
November 77.0°F — Nov 13, 1999 -6.9°F — Nov 24, 2010 3.53 in — Nov 24, 2000
December 71.1°F — Dec 1, 2021 -8.9°F — Dec 16, 2016 0.73 in — Dec 13, 2003

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