All-time weather records — Sierra Madre, CA

Record high
102.0°F
July 5, 2007
Record low
9.0°F
January 29, 1969
Wettest day
11.96 in
January 25, 1969

Climate change signal in Sierra Madre

11.5%

of Sierra Madre's all-time daily heat records were set in the last decade (42 of 366 records since 2015).

1.4%

of all-time daily cold records were set in the last decade (5 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 #
1940s
3
35
1950s
17
68
1960s
20
99
1970s
23
67
1980s
44
44
1990s
44
25
2000s
112
17
2010s
98
8
2020s
5
3

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 1949, the latest in 2024. Period of observation: 1948-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 77.0°F — Jan 31, 2003 9.0°F — Jan 29, 1969 11.96 in — Jan 25, 1969
February 80.1°F — Feb 14, 1985 10.9°F — Feb 27, 1962 9.79 in — Feb 11, 1973
March 82.9°F — Mar 16, 2007 14.0°F — Mar 3, 1966 8.86 in — Mar 2, 1983
April 86.0°F — Apr 6, 1989 18.0°F — Apr 9, 1999 4.15 in — Apr 20, 1988
May 91.9°F — May 22, 2000 21.9°F — May 5, 1964 3.52 in — May 5, 1998
June 100.9°F — Jun 30, 2013 28.9°F — Jun 7, 1950 1.78 in — Jun 5, 1993
July 102.0°F — Jul 5, 2007 37.9°F — Jul 11, 1974 2.58 in — Jul 19, 2015
August 100.9°F — Aug 24, 2010 37.0°F — Aug 20, 1959 1.85 in — Aug 17, 1977
September 98.1°F — Sep 2, 1950 34.0°F — Sep 11, 1952 5.40 in — Sep 11, 1976
October 95.0°F — Oct 2, 2024 18.0°F — Oct 29, 1971 5.33 in — Oct 30, 1992
November 84.0°F — Nov 3, 2010 15.1°F — Nov 29, 1975 7.37 in — Nov 29, 1970
December 78.1°F — Dec 3, 1958 10.0°F — Dec 14, 1967 6.82 in — Dec 6, 1966

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