All-time weather records — Ketchum, ID

Record high
98.1°F
July 13, 2002
Record low
-36.9°F
December 22, 1990
Wettest day
2.76 in
March 11, 1995

Climate change signal in Ketchum

22.4%

of Ketchum's all-time daily heat records were set in the last decade (82 of 366 records since 2015).

9%

of all-time daily cold records were set in the last decade (33 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 #
1970s
36
71
1980s
81
102
1990s
82
100
2000s
71
26
2010s
41
38
2020s
55
29

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 1973, the latest in 2026. Period of observation: 1973-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 54.0°F — Jan 27, 2015 -27.9°F — Jan 20, 2025 1.64 in — Jan 2, 1997
February 59.0°F — Feb 6, 2026 -27.0°F — Feb 5, 1982 1.85 in — Feb 28, 2006
March 72.0°F — Mar 20, 2026 -11.9°F — Mar 5, 1976 2.76 in — Mar 11, 1995
April 79.0°F — Apr 28, 1987 -0.9°F — Apr 5, 1982 1.11 in — Apr 10, 2006
May 89.1°F — May 30, 2003 12.0°F — May 10, 1999 1.40 in — May 24, 1976
June 97.0°F — Jun 17, 1974 0.0°F — Jun 12, 2001 1.13 in — Jun 6, 1993
July 98.1°F — Jul 13, 2002 0.0°F — Jul 11, 2001 1.09 in — Jul 25, 2006
August 96.1°F — Aug 8, 2001 19.0°F — Aug 25, 1992 1.34 in — Aug 22, 2014
September 90.0°F — Sep 4, 1988 -2.0°F — Sep 20, 2010 1.65 in — Sep 6, 1978
October 82.0°F — Oct 2, 2010 -2.0°F — Oct 30, 1991 1.58 in — Oct 25, 2010
November 73.9°F — Nov 22, 1999 -16.1°F — Nov 23, 1985 1.44 in — Nov 7, 2022
December 59.0°F — Dec 1, 2008 -36.9°F — Dec 22, 1990 1.88 in — Dec 13, 1995

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