Petaluma May 20 Weather Records

Daily averages and all-time records for weather in Petaluma, California for the date of May 20.
May 20 All-Time Records
1893–2024
Highest temperature 96 °F 1988
Lowest temperature 33 °F 1918
Lowest daily high 58 °F 1921
Highest daily low 61 °F 1920
Most precipitation 0.50 inches 1957
Most snow none -
May 20 Average Weather
1991–2020 1
Average high 72.5 °F
Average low 48.2 °F
Chance precipitation 11.1%
Chance snow 0%
Petaluma May 20 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 65 51 0.00 n/a
2022 86 46 0.00 n/a
2021 66 49 0.00 n/a
2020 71 46 0.00 n/a
2019 64 44 0.03 n/a
2018 65 46 0.00 n/a
2017 86 43 0.00 n/a
2016 66 48 0.00 n/a
2015 67 49 0.00 n/a
2014 72 50 0.00 n/a
2013 85 48 0.00 n/a
2012 79 42 0.00 n/a
2011 75 44 0.00 n/a
2010 67 43 0.00 0.0
2009 73 41 0.00 0.0
2008 70 51 0.00 0.0
2007 73 48 0.00 0.0
2006 70 49 0.08 0.0
2005 69 46 0.00 0.0
2004 n/a 47 0.00 0.0
2003 84 47 0.00 0.0
2002 62 43 0.33 0.0
2001 82 51 0.00 0.0
2000 86 51 0.00 0.0
1999 67 48 0.00 0.0
1998 65 42 0.00 0.0
1997 74 51 0.00 0.0
1996 68 40 0.00 0.0
1995 64 51 0.00 0.0
1994 68 47 0.00 0.0
1993 73 49 0.00 0.0
1992 74 50 0.00 0.0
1991 76 45 0.00 0.0
1990 70 48 0.33 0.0
1989 69 42 0.00 0.0
1988 96 48 0.00 0.0
1987 73 47 0.00 0.0
1986 71 48 0.00 0.0
1985 76 43 0.00 0.0
1984 81 52 0.00 0.0
1983 95 50 0.00 0.0
1982 78 41 0.00 0.0
1981 70 42 0.00 0.0
1980 84 49 0.00 0.0
1979 66 55 0.00 0.0
1978 69 51 0.00 0.0
1977 75 44 0.00 0.0
1976 79 41 0.00 0.0
1975 73 44 0.00 0.0
1974 67 40 0.00 0.0
1973 72 48 0.00 0.0
1972 65 45 0.00 0.0
1971 72 43 0.00 0.0
1970 72 42 0.00 0.0
1969 79 45 0.00 0.0
1968 71 56 0.00 0.0
1967 79 50 0.00 0.0
1966 77 49 0.00 0.0
1965 65 48 0.00 0.0
1964 67 47 0.01 0.0
1963 71 51 0.00 0.0
1962 67 40 0.00 0.0
1961 60 52 0.01 0.0
1960 70 46 0.00 0.0
1959 81 50 0.00 0.0
1958 74 52 0.00 0.0
1957 60 50 0.50 0.0
1956 73 43 0.00 0.0
1955 89 48 0.00 0.0
1954 69 49 0.00 0.0
1953 67 45 0.00 0.0
1952 83 49 0.00 0.0
1951 64 39 0.00 0.0
1950 86 44 0.00 0.0
1949 68 47 0.00 0.0
1948 63 48 0.10 0.0
1947 72 49 0.00 0.0
1946 65 49 0.00 0.0
1945 68 44 0.00 0.0
1944 83 47 0.00 0.0
1943 75 43 0.00 n/a
1942 94 53 0.00 n/a
1941 94 59 0.00 n/a
1940 78 45 0.00 n/a
1939 68 46 0.00 n/a
1938 71 49 0.00 n/a
1937 79 41 0.00 n/a
1936 77 43 0.00 0.0
1935 92 46 0.00 0.0
1934 79 46 0.00 n/a
1933 73 39 0.00 n/a
1932 69 41 0.10 n/a
1931 93 55 0.00 n/a
1930 66 48 0.00 n/a
1929 72 48 0.00 n/a
1928 62 50 0.00 n/a
1927 n/a n/a n/a n/a
1926 70 53 0.00 n/a
1925 70 48 0.00 n/a
1924 67 51 0.00 n/a
1923 71 44 0.00 n/a
1922 61 43 0.00 n/a
1921 58 53 0.01 n/a
1920 83 61 n/a n/a
1919 n/a 49 0.00 n/a
1918 64 33 0.00 n/a
1917 71 45 0.00 0.0
1916 72 38 n/a n/a
1915 63 46 0.00 n/a
1914 71 51 0.00 n/a
1913 72 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 0.02 n/a
What's the all-time high for Petaluma on 5/20?
For the date of May 20, the highest temperature ever reached in Petaluma history is 96 °F which happened in 1988.
Highest Temperatures in Petaluma on May 20
Rank Temperature Year
1 96 °F 1988
2 95 °F 1983
3 94 °F 1942
3 94 °F 1941
5 93 °F 1931
6 92 °F 1935
7 89 °F 1955
8 86 °F 2017
8 86 °F 2000
8 86 °F 2022
8 86 °F 1950
What's the all-time low for Petaluma on 5/20?
For the date of May 20, the lowest temperature ever reached in Petaluma history is 33 °F which happened in 1918.
Lowest Temperatures in Petaluma on May 20
Rank Temperature Year
1 33 °F 1918
2 38 °F 1916
3 39 °F 1951
3 39 °F 1933
5 40 °F 1962
5 40 °F 1996
5 40 °F 1974
8 41 °F 1976
8 41 °F 1937
8 41 °F 1932
8 41 °F 2009
8 41 °F 1982
Lowest High Temperatures in Petaluma on May 20
Rank Temperature Year
1 58 °F 1921
2 60 °F 1961
2 60 °F 1957
4 61 °F 1922
5 62 °F 2002
5 62 °F 1928
7 63 °F 1948
7 63 °F 1915
9 64 °F 1995
9 64 °F 2019
9 64 °F 1918
9 64 °F 1951
What's the most it has ever rained in Petaluma on 5/20?
For the date of May 20, the most precipitation ever recorded in Petaluma history is 0.50 inches which happened in 1957.
All-Time Most Precipitation in Petaluma on May 20
Rank Precipitation Year
1 0.50 inches 1957
2 0.33 inches 2002
2 0.33 inches 1990
4 0.10 inches 1932
4 0.10 inches 1948
6 0.08 inches 2006
7 0.03 inches 2019
8 0.02 inches 1893
9 0.01 inches 1921
9 0.01 inches 1964
9 0.01 inches 1961
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.
© H Brothers Inc, 2021–2024
Contact us | Privacy policy