Petaluma July 21 Weather Records

Daily averages and all-time records for weather in Petaluma, California for the date of July 21.
July 21 All-Time Records
1893–2024
Highest temperature 100 °F 1917
Lowest temperature 42 °F 1934
Lowest daily high 70 °F 2008
Highest daily low 67 °F 2014
Most precipitation none -
Most snow none -
July 21 Average Weather
1991–2020 1
Average high 81.0 °F
Average low 52.9 °F
Chance precipitation 0.5%
Chance snow 0%
Petaluma July 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 93 53 0.00 n/a
2022 80 49 0.00 n/a
2021 83 51 0.00 n/a
2020 73 54 0.00 n/a
2019 79 52 0.00 n/a
2018 84 59 0.00 n/a
2017 87 51 0.00 n/a
2016 73 53 0.00 n/a
2015 93 57 0.00 n/a
2014 76 67 0.00 n/a
2013 83 52 0.00 n/a
2012 93 53 0.00 n/a
2011 85 52 0.00 n/a
2010 76 49 0.00 0.0
2009 75 51 0.00 0.0
2008 70 52 0.00 0.0
2007 80 56 0.00 0.0
2006 94 56 0.00 0.0
2005 n/a 56 0.00 0.0
2004 88 54 0.00 0.0
2003 87 57 0.00 0.0
2002 84 56 0.00 0.0
2001 72 52 0.00 0.0
2000 83 51 0.00 0.0
1999 73 57 0.00 0.0
1998 79 55 0.00 0.0
1997 80 56 0.00 0.0
1996 96 54 0.00 0.0
1995 74 57 0.00 0.0
1994 72 56 0.00 0.0
1993 81 49 0.00 0.0
1992 80 54 0.00 0.0
1991 n/a n/a n/a 0.0
1990 80 54 0.00 0.0
1989 91 50 0.00 0.0
1988 83 56 0.00 0.0
1987 72 56 0.00 0.0
1986 88 50 0.00 0.0
1985 82 53 0.00 0.0
1984 74 56 0.00 0.0
1983 90 50 0.00 0.0
1982 84 50 0.00 0.0
1981 89 49 0.00 0.0
1980 80 56 0.00 0.0
1979 82 56 0.00 0.0
1978 91 49 0.00 0.0
1977 78 50 0.00 0.0
1976 83 50 0.00 0.0
1975 82 55 0.00 0.0
1974 87 52 0.00 0.0
1973 81 48 0.00 0.0
1972 77 60 0.00 0.0
1971 80 54 0.00 0.0
1970 80 51 0.00 0.0
1969 83 51 0.00 0.0
1968 83 46 0.00 0.0
1967 89 50 0.00 0.0
1966 86 49 0.00 0.0
1965 81 52 0.00 0.0
1964 80 52 0.00 0.0
1963 79 45 0.00 0.0
1962 90 49 0.00 0.0
1961 89 50 0.00 0.0
1960 92 50 0.00 0.0
1959 84 59 0.00 0.0
1958 77 54 0.00 0.0
1957 77 52 0.00 0.0
1956 77 52 0.00 0.0
1955 76 51 0.00 0.0
1954 90 52 0.00 0.0
1953 87 53 0.00 0.0
1952 73 54 0.00 0.0
1951 83 48 0.00 0.0
1950 82 52 0.00 0.0
1949 78 49 0.00 0.0
1948 82 53 0.00 0.0
1947 75 50 0.00 0.0
1946 80 56 0.00 0.0
1945 78 53 0.00 0.0
1944 79 52 0.00 0.0
1943 76 48 0.00 n/a
1942 81 56 0.00 n/a
1941 85 55 0.00 n/a
1940 82 47 0.00 n/a
1939 97 51 0.00 n/a
1938 83 53 0.00 n/a
1937 86 52 0.00 n/a
1936 87 52 0.00 n/a
1935 81 49 0.00 0.0
1934 72 42 0.00 n/a
1933 92 48 0.00 n/a
1932 74 49 0.00 n/a
1931 87 51 0.00 n/a
1930 76 53 0.00 n/a
1929 84 54 0.00 n/a
1928 81 47 0.00 n/a
1927 n/a n/a n/a n/a
1926 73 45 0.00 n/a
1925 75 54 0.00 n/a
1924 80 54 0.00 0.0
1923 85 44 n/a n/a
1922 72 53 n/a n/a
1921 82 n/a n/a n/a
1920 76 51 0.00 n/a
1919 71 50 n/a n/a
1918 89 50 n/a n/a
1917 100 47 n/a n/a
1916 86 47 0.00 n/a
1915 93 51 n/a n/a
1914 78 56 0.00 n/a
1913 82 57 0.00 n/a
1912 n/a n/a n/a n/a
1911 n/a n/a n/a n/a
1910 n/a n/a n/a n/a
1909 n/a n/a n/a n/a
1908 n/a n/a n/a n/a
1907 n/a n/a n/a n/a
1906 n/a n/a n/a n/a
1905 n/a n/a n/a n/a
1904 n/a n/a n/a n/a
1903 n/a n/a n/a n/a
1902 n/a n/a n/a n/a
1901 n/a n/a n/a n/a
1900 n/a n/a n/a n/a
1899 n/a n/a n/a n/a
1898 n/a n/a n/a n/a
1897 n/a n/a n/a n/a
1896 n/a n/a n/a n/a
1895 n/a n/a 0.00 n/a
1894 n/a n/a n/a n/a
1893 n/a n/a 0.00 n/a
What's the all-time high for Petaluma on 7/21?
For the date of Jul 21, the highest temperature ever reached in Petaluma history is 100 °F which happened in 1917.
Highest Temperatures in Petaluma on July 21
Rank Temperature Year
1 100 °F 1917
2 97 °F 1939
3 96 °F 1996
4 94 °F 2006
5 93 °F 2012
5 93 °F 2015
5 93 °F 1915
5 93 °F 2023
9 92 °F 1933
9 92 °F 1960
What's the all-time low for Petaluma on 7/21?
For the date of Jul 21, the lowest temperature ever reached in Petaluma history is 42 °F which happened in 1934.
Lowest Temperatures in Petaluma on July 21
Rank Temperature Year
1 42 °F 1934
2 44 °F 1923
3 45 °F 1963
3 45 °F 1926
5 46 °F 1968
6 47 °F 1940
6 47 °F 1917
6 47 °F 1916
6 47 °F 1928
10 48 °F 1943
10 48 °F 1951
10 48 °F 1933
10 48 °F 1973
Lowest High Temperatures in Petaluma on July 21
Rank Temperature Year
1 70 °F 2008
2 71 °F 1919
3 72 °F 1994
3 72 °F 1987
3 72 °F 1922
3 72 °F 2001
3 72 °F 1934
8 73 °F 1926
8 73 °F 1952
8 73 °F 2016
8 73 °F 2020
8 73 °F 1999
Weather Station Details
Years Station Coordinates
1893–2024 Petaluma Airport location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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