Petaluma April 20 Weather Records

Daily averages and all-time records for weather in Petaluma, California for the date of April 20.
April 20 All-Time Records
1893–2024
Highest temperature 93 °F 1931
Lowest temperature 30 °F 1998
Lowest daily high 53 °F 1955
Highest daily low 59 °F 1982
Most precipitation 1.04 inches 1955
Most snow none -
April 20 Average Weather
1991–2020 1
Average high 68.9 °F
Average low 44.6 °F
Chance precipitation 20.6%
Chance snow 0%
Petaluma April 20 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2024 68 49 0.00 n/a
2023 67 38 0.00 n/a
2022 62 48 0.00 n/a
2021 67 43 0.00 n/a
2020 61 49 0.00 n/a
2019 63 52 0.00 n/a
2018 71 35 0.00 n/a
2017 66 48 0.10 n/a
2016 83 41 0.00 n/a
2015 64 52 0.00 n/a
2014 79 44 0.00 n/a
2013 75 47 0.00 n/a
2012 83 52 0.00 n/a
2011 n/a 51 0.03 n/a
2010 61 47 0.42 0.0
2009 92 44 0.00 0.0
2008 55 33 0.00 0.0
2007 64 45 0.34 0.0
2006 68 44 0.00 0.0
2005 n/a 39 0.00 0.0
2004 65 52 0.06 0.0
2003 67 43 0.00 0.0
2002 72 40 0.00 0.0
2001 n/a 43 0.80 0.0
2000 70 49 0.00 0.0
1999 67 49 0.00 0.0
1998 72 30 0.00 0.0
1997 70 55 0.03 0.0
1996 60 36 0.23 0.0
1995 64 n/a 0.13 0.0
1994 66 40 0.00 0.0
1993 70 41 0.00 0.0
1992 73 48 n/a 0.0
1991 69 40 0.12 0.0
1990 70 48 0.02 0.0
1989 72 52 0.00 0.0
1988 64 47 0.39 0.0
1987 83 41 0.00 0.0
1986 87 44 0.00 0.0
1985 67 40 0.00 0.0
1984 68 39 0.01 0.0
1983 64 50 0.41 0.0
1982 84 59 0.00 0.0
1981 67 42 0.00 0.0
1980 62 53 0.02 0.0
1979 68 40 0.00 0.0
1978 61 45 0.19 0.0
1977 69 39 0.00 0.0
1976 77 45 0.00 0.0
1975 73 41 0.00 0.0
1974 71 45 0.00 0.0
1973 73 46 0.00 0.0
1972 73 35 0.00 0.0
1971 59 46 0.00 0.0
1970 63 40 0.03 0.0
1969 74 41 0.00 0.0
1968 65 42 0.00 0.0
1967 59 34 0.00 0.0
1966 69 35 0.00 0.0
1965 69 54 0.05 0.0
1964 62 46 0.00 0.0
1963 54 36 0.43 0.0
1962 67 39 0.00 0.0
1961 61 34 0.00 0.0
1960 71 41 0.00 0.0
1959 74 39 0.00 0.0
1958 78 48 0.00 0.0
1957 59 46 0.07 0.0
1956 75 47 0.00 0.0
1955 53 47 1.04 0.0
1954 73 43 0.00 0.0
1953 68 48 0.11 0.0
1952 80 44 0.00 0.0
1951 60 44 0.00 0.0
1950 81 47 0.00 0.0
1949 72 49 0.00 0.0
1948 62 40 0.00 0.0
1947 67 n/a 0.00 0.0
1946 67 39 0.00 0.0
1945 72 47 0.00 0.0
1944 61 47 0.00 n/a
1943 70 49 0.00 n/a
1942 73 47 0.00 n/a
1941 74 42 0.00 n/a
1940 76 39 0.00 n/a
1939 57 47 0.00 n/a
1938 67 42 0.00 0.0
1937 81 41 0.00 n/a
1936 69 42 0.00 0.0
1935 70 41 0.00 n/a
1934 71 49 0.00 n/a
1933 67 34 0.00 n/a
1932 58 42 0.00 n/a
1931 93 40 0.00 n/a
1930 79 49 0.00 n/a
1929 61 46 0.00 n/a
1928 64 48 0.00 n/a
1927 n/a n/a n/a n/a
1926 65 49 0.00 0.0
1925 59 46 0.30 0.0
1924 73 39 0.00 n/a
1923 61 46 0.00 n/a
1922 72 49 n/a n/a
1921 67 57 0.01 n/a
1920 58 44 0.00 n/a
1919 68 43 0.00 n/a
1918 81 37 0.00 n/a
1917 66 37 0.00 n/a
1916 69 39 0.00 n/a
1915 58 50 0.00 n/a
1914 61 45 0.00 n/a
1913 69 43 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 4/20?
For the date of Apr 20, the highest temperature ever reached in Petaluma history is 93 °F which happened in 1931.
Highest Temperatures in Petaluma on April 20
Rank Temperature Year
1 93 °F 1931
2 92 °F 2009
3 87 °F 1986
4 84 °F 1982
5 83 °F 1987
5 83 °F 2016
5 83 °F 2012
8 81 °F 1937
8 81 °F 1950
8 81 °F 1918
What's the all-time low for Petaluma on 4/20?
For the date of Apr 20, the lowest temperature ever reached in Petaluma history is 30 °F which happened in 1998.
Lowest Temperatures in Petaluma on April 20
Rank Temperature Year
1 30 °F 1998
2 33 °F 2008
3 34 °F 1961
3 34 °F 1933
3 34 °F 1967
6 35 °F 1966
6 35 °F 1972
6 35 °F 2018
9 36 °F 1996
9 36 °F 1963
Lowest High Temperatures in Petaluma on April 20
Rank Temperature Year
1 53 °F 1955
2 54 °F 1963
3 55 °F 2008
4 57 °F 1939
5 58 °F 1920
5 58 °F 1932
5 58 °F 1915
8 59 °F 1971
8 59 °F 1967
8 59 °F 1925
8 59 °F 1957
What's the most it has ever rained in Petaluma on 4/20?
For the date of Apr 20, the most precipitation ever recorded in Petaluma history is 1.04 inches which happened in 1955.
All-Time Most Precipitation in Petaluma on April 20
Rank Precipitation Year
1 1.04 inches 1955
2 0.80 inches 2001
3 0.43 inches 1963
4 0.42 inches 2010
5 0.41 inches 1983
6 0.39 inches 1988
7 0.34 inches 2007
8 0.30 inches 1925
9 0.23 inches 1996
10 0.19 inches 1978
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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