Petaluma April 21 Weather Records

Daily averages and all-time records for weather in Petaluma, California for the date of April 21.
April 21 All-Time Records
1893–2024
Highest temperature 87 °F 2012
Lowest temperature 30 °F 2008
Lowest daily high 53 °F 1967
Highest daily low 60 °F 1921
Most precipitation 2.09 inches 1925
Most snow none -
April 21 Average Weather
1991–2020 1
Average high 69.0 °F
Average low 44.8 °F
Chance precipitation 20.1%
Chance snow 0%
Petaluma April 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2024 79 48 0.00 n/a
2023 76 38 0.00 n/a
2022 62 48 0.26 n/a
2021 72 42 0.00 n/a
2020 69 42 0.00 n/a
2019 67 43 0.00 n/a
2018 77 42 0.00 n/a
2017 70 45 0.00 n/a
2016 72 52 0.00 n/a
2015 60 49 0.00 n/a
2014 77 44 0.00 n/a
2013 81 42 0.00 n/a
2012 87 51 0.00 n/a
2011 64 43 0.09 n/a
2010 59 44 0.05 0.0
2009 n/a 50 0.00 0.0
2008 56 30 0.00 0.0
2007 n/a 39 0.05 0.0
2006 68 43 0.00 0.0
2005 73 45 0.00 0.0
2004 64 52 0.06 0.0
2003 60 47 0.02 0.0
2002 72 40 0.00 0.0
2001 64 38 0.01 0.0
2000 67 47 0.00 0.0
1999 63 45 0.00 0.0
1998 86 n/a 0.00 0.0
1997 69 55 0.00 0.0
1996 64 41 0.09 0.0
1995 70 40 0.00 0.0
1994 66 46 0.00 0.0
1993 70 46 0.00 0.0
1992 65 n/a n/a 0.0
1991 69 42 0.00 0.0
1990 72 52 0.00 0.0
1989 67 53 0.04 0.0
1988 67 45 0.32 0.0
1987 87 45 0.00 0.0
1986 85 46 0.00 0.0
1985 62 43 0.27 0.0
1984 76 48 0.00 0.0
1983 64 42 0.12 0.0
1982 82 44 0.00 0.0
1981 75 43 0.00 0.0
1980 58 41 0.10 0.0
1979 69 39 0.03 0.0
1978 64 37 0.00 0.0
1977 72 44 0.00 0.0
1976 74 40 0.00 0.0
1975 69 45 0.00 0.0
1974 71 42 0.00 0.0
1973 80 47 0.00 0.0
1972 71 40 0.00 0.0
1971 59 34 0.00 0.0
1970 61 37 0.00 0.0
1969 74 42 0.00 0.0
1968 66 35 0.00 0.0
1967 53 43 1.06 0.0
1966 70 35 0.00 0.0
1965 70 53 0.12 0.0
1964 67 44 0.00 0.0
1963 59 32 0.00 0.0
1962 76 48 0.00 0.0
1961 58 41 0.06 0.0
1960 63 44 0.00 0.0
1959 65 48 0.00 0.0
1958 78 42 0.00 0.0
1957 66 39 0.00 0.0
1956 72 46 0.00 0.0
1955 62 48 1.07 0.0
1954 78 42 0.00 0.0
1953 75 51 0.00 0.0
1952 75 42 0.00 0.0
1951 61 47 0.00 0.0
1950 77 47 0.00 0.0
1949 79 48 0.00 0.0
1948 58 43 0.07 0.0
1947 67 n/a 0.00 0.0
1946 69 41 0.00 0.0
1945 70 48 0.00 0.0
1944 65 42 0.00 n/a
1943 68 46 0.00 n/a
1942 70 48 0.00 n/a
1941 71 45 0.00 n/a
1940 73 40 0.00 n/a
1939 64 47 0.00 n/a
1938 66 40 0.00 0.0
1937 68 42 0.00 n/a
1936 68 44 0.08 0.0
1935 68 40 0.00 n/a
1934 71 47 0.00 n/a
1933 67 37 0.00 n/a
1932 62 36 0.00 n/a
1931 80 44 0.00 n/a
1930 75 38 0.00 n/a
1929 64 43 0.05 n/a
1928 70 56 0.00 n/a
1927 n/a n/a n/a n/a
1926 65 41 0.00 0.0
1925 66 38 2.09 0.0
1924 65 40 0.00 n/a
1923 59 41 0.00 n/a
1922 60 54 n/a n/a
1921 79 60 0.00 n/a
1920 60 44 0.00 n/a
1919 68 35 0.00 n/a
1918 82 39 0.00 n/a
1917 76 50 0.00 n/a
1916 67 45 0.00 n/a
1915 60 46 0.00 n/a
1914 64 39 0.00 n/a
1913 69 41 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 0.00 n/a
1893 n/a n/a 0.00 n/a
What's the all-time high for Petaluma on 4/21?
For the date of Apr 21, the highest temperature ever reached in Petaluma history is 87 °F which has happened 2 times, most recently in 2012.
Highest Temperatures in Petaluma on April 21
Rank Temperature Year
1 87 °F 1987
1 87 °F 2012
3 86 °F 1998
4 85 °F 1986
5 82 °F 1918
5 82 °F 1982
7 81 °F 2013
8 80 °F 1973
8 80 °F 1931
10 79 °F 2024
10 79 °F 1921
10 79 °F 1949
What's the all-time low for Petaluma on 4/21?
For the date of Apr 21, the lowest temperature ever reached in Petaluma history is 30 °F which happened in 2008.
Lowest Temperatures in Petaluma on April 21
Rank Temperature Year
1 30 °F 2008
2 32 °F 1963
3 34 °F 1971
4 35 °F 1966
4 35 °F 1919
4 35 °F 1968
7 36 °F 1932
8 37 °F 1970
8 37 °F 1978
8 37 °F 1933
Lowest High Temperatures in Petaluma on April 21
Rank Temperature Year
1 53 °F 1967
2 56 °F 2008
3 58 °F 1948
3 58 °F 1961
3 58 °F 1980
6 59 °F 1971
6 59 °F 1963
6 59 °F 2010
6 59 °F 1923
10 60 °F 1922
10 60 °F 1920
10 60 °F 2003
10 60 °F 2015
10 60 °F 1915
What's the most it has ever rained in Petaluma on 4/21?
For the date of Apr 21, the most precipitation ever recorded in Petaluma history is 2.09 inches which happened in 1925.
All-Time Most Precipitation in Petaluma on April 21
Rank Precipitation Year
1 2.09 inches 1925
2 1.07 inches 1955
3 1.06 inches 1967
4 0.32 inches 1988
5 0.27 inches 1985
6 0.26 inches 2022
7 0.12 inches 1965
7 0.12 inches 1983
9 0.10 inches 1980
10 0.09 inches 2011
10 0.09 inches 1996
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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