All-time weather records — Nampa, ID

Record high
109.0°F
June 29, 2015
Record low
-26.0°F
December 22, 1990
Wettest day
1.80 in
June 5, 2015

Climate change signal in Nampa

3.8%

of Nampa's all-time daily heat records were set in the last decade (14 of 366 records since 2015).

1.1%

of all-time daily cold records were set in the last decade (4 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
18
70
1980s
82
134
1990s
115
96
2000s
104
39
2010s
47
27

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 1976, the latest in 2015. Period of observation: 1976-2015.

Records by month

Month Hottest day Coldest day Wettest day
January 60.1°F — Jan 10, 1990 -20.0°F — Jan 31, 1979 1.08 in — Jan 11, 1979
February 70.0°F — Feb 26, 1986 -20.9°F — Feb 6, 1989 0.80 in — Feb 13, 1995
March 81.0°F — Mar 20, 1997 12.9°F — Mar 1, 1993 1.04 in — Mar 26, 2011
April 93.0°F — Apr 28, 1987 18.0°F — Apr 4, 2009 1.38 in — Apr 24, 1980
May 100.0°F — May 29, 2003 26.1°F — May 3, 2001 1.00 in — May 23, 2010
June 109.0°F — Jun 29, 2015 33.1°F — Jun 1, 1984 1.80 in — Jun 5, 2015
July 109.0°F — Jul 2, 2013 37.9°F — Jul 7, 1986 1.80 in — Jul 13, 2015
August 107.1°F — Aug 9, 1990 36.0°F — Aug 24, 1992 0.93 in — Aug 23, 2003
September 100.9°F — Sep 3, 1998 28.0°F — Sep 25, 1984 1.69 in — Sep 11, 1980
October 93.9°F — Oct 1, 1992 15.1°F — Oct 31, 2002 1.04 in — Oct 13, 2000
November 73.9°F — Nov 2, 1988 -2.9°F — Nov 23, 1985 0.96 in — Nov 2, 2014
December 64.9°F — Dec 2, 2012 -26.0°F — Dec 22, 1990 0.85 in — Dec 29, 2010

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