All-time weather records — Montclair, CA

Record high
117.0°F
June 17, 1917
Record low
21.0°F
January 7, 1913
Wettest day
8.50 in
January 1, 1934

Climate change signal in Montclair

0%

of Montclair's all-time daily heat records were set in the last decade (0 of 366 records since 2015).

0%

of all-time daily cold records were set in the last decade (0 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 #
1890s
27
14
1900s
15
8
1910s
21
81
1920s
29
74
1930s
31
52
1940s
29
80
1950s
49
41
1960s
36
8
1970s
25
·
1980s
55
4
1990s
15
2
2000s
32
2
2010s
2
·

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 1894, the latest in 2012. Period of observation: 1893-2012.

Records by month

Month Hottest day Coldest day Wettest day
January 91.0°F — Jan 30, 2003 21.0°F — Jan 7, 1913 8.50 in — Jan 1, 1934
February 93.9°F — Feb 4, 1995 21.9°F — Feb 6, 1899 5.60 in — Feb 19, 1914
March 100.0°F — Mar 26, 1988 26.1°F — Mar 1, 1939 4.21 in — Mar 3, 1938
April 104.0°F — Apr 6, 1989 28.9°F — Apr 6, 1921 3.85 in — Apr 6, 1926
May 106.0°F — May 29, 1984 30.9°F — May 1, 1915 1.34 in — May 8, 1977
June 117.0°F — Jun 17, 1917 37.9°F — Jun 1, 1923 1.34 in — Jun 6, 1925
July 113.0°F — Jul 22, 2006 37.0°F — Jul 4, 2009 0.44 in — Jul 30, 1965
August 109.9°F — Aug 3, 1918 42.1°F — Aug 27, 1920 1.22 in — Aug 18, 1977
September 113.0°F — Sep 10, 1948 37.9°F — Sep 26, 1948 2.60 in — Sep 25, 1939
October 107.1°F — Oct 12, 1950 28.9°F — Oct 31, 1935 3.80 in — Oct 18, 1934
November 97.0°F — Nov 2, 1949 24.1°F — Nov 12, 1938 5.71 in — Nov 26, 2008
December 93.0°F — Dec 4, 1979 21.9°F — Dec 22, 1990 4.07 in — Dec 30, 1951

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