All-time weather records — Sisters, OR

Record high
109.0°F
June 30, 2021
Record low
-27.9°F
January 22, 1962
Wettest day
3.40 in
December 7, 2005

Climate change signal in Sisters

9.8%

of Sisters's all-time daily heat records were set in the last decade (36 of 366 records since 2015).

6%

of all-time daily cold records were set in the last decade (22 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 #
1950s
15
7
1960s
72
71
1970s
50
106
1980s
66
78
1990s
65
45
2000s
50
24
2010s
40
34
2020s
8
1

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 1958, the latest in 2021. Period of observation: 1958-2024.

Records by month

Month Hottest day Coldest day Wettest day
January 64.9°F — Jan 29, 1971 -27.9°F — Jan 22, 1962 2.02 in — Jan 10, 1989
February 72.0°F — Feb 21, 1995 -22.0°F — Feb 4, 1985 2.27 in — Feb 18, 1986
March 78.1°F — Mar 29, 1966 -9.0°F — Mar 1, 2019 2.00 in — Mar 6, 2019
April 87.1°F — Apr 28, 1987 9.0°F — Apr 13, 1968 1.52 in — Apr 28, 1990
May 98.1°F — May 31, 1986 10.9°F — May 25, 1975 1.11 in — May 19, 1981
June 109.0°F — Jun 30, 2021 16.0°F — Jun 13, 2008 1.32 in — Jun 12, 1982
July 109.0°F — Jul 2, 2021 24.1°F — Jul 5, 1977 1.25 in — Jul 18, 1987
August 106.0°F — Aug 7, 1972 25.0°F — Aug 24, 1992 1.20 in — Aug 31, 2004
September 102.9°F — Sep 2, 1998 15.1°F — Sep 30, 1985 1.36 in — Sep 20, 1982
October 91.9°F — Oct 4, 1980 -4.0°F — Oct 31, 2002 3.00 in — Oct 19, 1984
November 73.0°F — Nov 1, 1988 -16.1°F — Nov 24, 1993 2.33 in — Nov 22, 1961
December 66.0°F — Dec 1, 2021 -27.9°F — Dec 8, 2013 3.40 in — Dec 7, 2005

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