All-time weather records — Sumpter, OR

Record high
98.8°F
July 12, 2002
Record low
-60.0°F
May 9, 1989
Wettest day
2.40 in
May 20, 2020

Climate change signal in Sumpter

39.6%

of Sumpter's all-time daily heat records were set in the last decade (145 of 366 records since 2015).

10.4%

of all-time daily cold records were set in the last decade (38 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 #
1980s
8
98
1990s
87
115
2000s
98
93
2010s
95
41
2020s
78
19

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 1988, the latest in 2026. Period of observation: 1980-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 57.2°F — Jan 17, 2014 -9.6°F — Jan 13, 1997 1.80 in — Jan 23, 1984
February 58.5°F — Feb 10, 2022 -25.8°F — Feb 4, 1989 1.80 in — Feb 5, 2020
March 72.3°F — Mar 20, 2026 -2.0°F — Mar 3, 1989 1.60 in — Mar 27, 2005
April 77.7°F — Apr 23, 2012 -32.6°F — Apr 13, 1989 1.00 in — Apr 7, 1995
May 84.7°F — May 17, 2008 -60.0°F — May 9, 1989 2.40 in — May 20, 2020
June 92.1°F — Jun 29, 2021 -31.7°F — Jun 13, 1988 1.00 in — Jun 20, 1984
July 98.8°F — Jul 12, 2002 -32.1°F — Jul 13, 1988 1.40 in — Jul 31, 2021
August 96.8°F — Aug 10, 2018 25.0°F — Aug 24, 1992 1.70 in — Aug 30, 1984
September 96.4°F — Sep 3, 2017 -32.6°F — Sep 21, 1988 1.70 in — Sep 29, 2013
October 85.3°F — Oct 1, 2010 -32.6°F — Oct 1, 1988 1.30 in — Oct 15, 2016
November 66.9°F — Nov 8, 2004 -6.7°F — Nov 23, 1993 1.40 in — Nov 28, 2001
December 61.2°F — Dec 1, 2021 -26.5°F — Dec 21, 1990 1.80 in — Dec 30, 2005

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