All-time weather records — Mammoth Lakes, CA

Record high
91.0°F
July 10, 2002
Record low
-16.1°F
January 13, 2007
Wettest day
12.00 in
November 17, 1996

Climate change signal in Mammoth Lakes

26.2%

of Mammoth Lakes's all-time daily heat records were set in the last decade (96 of 366 records since 2015).

13.4%

of all-time daily cold records were set in the last decade (49 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 #
1990s
92
135
2000s
123
137
2010s
146
93
2020s
5
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 1993, the latest in 2021. Period of observation: 1993-2022.

Records by month

Month Hottest day Coldest day Wettest day
January 66.9°F — Jan 16, 2021 -16.1°F — Jan 13, 2007 2.62 in — Jan 5, 2008
February 66.0°F — Feb 14, 2015 -11.0°F — Feb 20, 2018 2.72 in — Feb 20, 1996
March 68.0°F — Mar 28, 2015 -8.0°F — Mar 5, 2018 3.33 in — Mar 11, 1995
April 73.0°F — Apr 30, 1996 -0.9°F — Apr 1, 1999 2.30 in — Apr 4, 2006
May 81.0°F — May 19, 2008 12.9°F — May 11, 2000 3.30 in — May 23, 2019
June 86.0°F — Jun 9, 2013 17.1°F — Jun 7, 1995 0.90 in — Jun 12, 2016
July 91.0°F — Jul 10, 2002 25.0°F — Jul 1, 1997 1.06 in — Jul 9, 2015
August 88.0°F — Aug 1, 2000 30.0°F — Aug 31, 1999 1.50 in — Aug 7, 1998
September 82.9°F — Sep 2, 2014 21.0°F — Sep 21, 2004 1.33 in — Sep 23, 1999
October 80.1°F — Oct 9, 1996 1.9°F — Oct 4, 2019 4.05 in — Oct 14, 2009
November 70.0°F — Nov 1, 1997 -8.0°F — Nov 19, 1994 12.00 in — Nov 17, 1996
December 64.0°F — Dec 2, 2008 -11.9°F — Dec 21, 1998 4.48 in — Dec 19, 2010

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