Petaluma October 20 Weather Records

Daily averages and all-time records for weather in Petaluma, California for the date of October 20.
October 20 All-Time Records
1893–2024
Highest temperature 93 °F 1929
Lowest temperature 32 °F 1919
Lowest daily high 58 °F 1918
Highest daily low 62 °F 1921
Most precipitation 0.87 inches 1985
Most snow none -
October 20 Average Weather
1991–2020 1
Average high 75.8 °F
Average low 47.1 °F
Chance precipitation 13.4%
Chance snow 0%
Petaluma October 20 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 75 52 0.00 n/a
2022 86 50 0.00 n/a
2021 64 52 0.10 n/a
2020 86 47 0.00 n/a
2019 75 46 0.00 n/a
2018 79 49 0.00 n/a
2017 69 42 0.00 n/a
2016 82 46 0.00 n/a
2015 85 53 0.00 n/a
2014 75 56 0.04 n/a
2013 83 44 0.00 n/a
2012 74 52 0.00 n/a
2011 n/a 48 0.00 n/a
2010 66 51 0.00 0.0
2009 67 53 0.02 0.0
2008 70 44 0.00 0.0
2007 65 45 0.10 0.0
2006 84 46 0.00 0.0
2005 72 49 0.00 0.0
2004 61 46 0.54 0.0
2003 84 47 0.00 0.0
2002 75 54 0.00 0.0
2001 81 43 0.00 0.0
2000 78 47 0.00 0.0
1999 86 42 0.00 0.0
1998 89 40 0.00 0.0
1997 68 44 0.00 0.0
1996 68 43 0.00 0.0
1995 76 47 0.00 0.0
1994 76 45 0.00 0.0
1993 82 42 0.00 0.0
1992 73 53 0.58 0.0
1991 n/a n/a n/a n/a
1990 n/a n/a n/a n/a
1989 66 51 0.00 0.0
1988 85 46 0.00 0.0
1987 71 52 0.00 0.0
1986 67 40 0.00 0.0
1985 64 50 0.87 0.0
1984 71 42 0.00 0.0
1983 85 47 0.00 0.0
1982 75 55 0.00 0.0
1981 79 49 0.00 0.0
1980 79 43 0.00 0.0
1979 63 45 0.85 0.0
1978 68 52 0.00 0.0
1977 66 50 0.00 0.0
1976 79 42 0.00 0.0
1975 85 47 0.00 0.0
1974 80 46 0.00 0.0
1973 70 56 0.05 0.0
1972 68 56 0.00 0.0
1971 67 54 0.04 0.0
1970 66 51 0.20 0.0
1969 85 39 0.00 0.0
1968 71 44 0.00 0.0
1967 83 43 0.00 0.0
1966 77 51 0.00 0.0
1965 85 42 0.00 0.0
1964 92 43 0.00 0.0
1963 68 53 0.00 0.0
1962 72 52 0.00 0.0
1961 63 54 0.00 0.0
1960 80 43 0.00 0.0
1959 75 41 0.00 0.0
1958 80 48 0.00 0.0
1957 66 46 0.06 0.0
1956 82 40 0.00 0.0
1955 74 55 0.00 0.0
1954 79 46 0.00 0.0
1953 79 47 0.00 0.0
1952 79 46 0.00 0.0
1951 76 53 0.00 0.0
1950 72 52 0.00 0.0
1949 67 34 0.00 0.0
1948 73 49 0.00 0.0
1947 65 54 0.09 0.0
1946 70 38 0.00 0.0
1945 72 52 0.00 0.0
1944 68 54 0.10 0.0
1943 62 54 0.08 0.0
1942 89 46 0.00 n/a
1941 70 45 0.05 n/a
1940 82 54 0.00 n/a
1939 86 42 0.00 n/a
1938 82 40 0.00 0.0
1937 89 44 0.00 n/a
1936 72 50 0.00 n/a
1935 78 41 0.00 0.0
1934 69 39 0.00 n/a
1933 86 43 n/a n/a
1932 75 38 0.00 0.0
1931 63 53 0.00 n/a
1930 79 38 0.00 n/a
1929 93 52 n/a n/a
1928 60 49 0.00 n/a
1927 78 44 0.00 n/a
1926 64 47 0.00 n/a
1925 92 38 0.00 n/a
1924 70 49 0.00 n/a
1923 88 45 0.00 n/a
1922 80 41 0.00 n/a
1921 82 62 0.00 n/a
1920 67 38 0.00 n/a
1919 84 32 0.00 n/a
1918 58 38 0.00 n/a
1917 85 36 n/a n/a
1916 64 48 0.00 n/a
1915 78 36 0.00 n/a
1914 66 53 0.00 n/a
1913 91 40 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 0.15 n/a
1894 n/a n/a 0.26 n/a
1893 n/a n/a 0.00 n/a
What's the all-time high for Petaluma on 10/20?
For the date of Oct 20, the highest temperature ever reached in Petaluma history is 93 °F which happened in 1929.
Highest Temperatures in Petaluma on October 20
Rank Temperature Year
1 93 °F 1929
2 92 °F 1964
2 92 °F 1925
4 91 °F 1913
5 89 °F 1942
5 89 °F 1937
5 89 °F 1998
8 88 °F 1923
9 86 °F 1933
9 86 °F 1939
9 86 °F 1999
9 86 °F 2022
9 86 °F 2020
What's the all-time low for Petaluma on 10/20?
For the date of Oct 20, the lowest temperature ever reached in Petaluma history is 32 °F which happened in 1919.
Lowest Temperatures in Petaluma on October 20
Rank Temperature Year
1 32 °F 1919
2 34 °F 1949
3 36 °F 1915
3 36 °F 1917
5 38 °F 1925
5 38 °F 1930
5 38 °F 1918
5 38 °F 1920
5 38 °F 1932
5 38 °F 1946
Lowest High Temperatures in Petaluma on October 20
Rank Temperature Year
1 58 °F 1918
2 60 °F 1928
3 61 °F 2004
4 62 °F 1943
5 63 °F 1979
5 63 °F 1931
5 63 °F 1961
8 64 °F 1916
8 64 °F 1926
8 64 °F 2021
8 64 °F 1985
What's the most it has ever rained in Petaluma on 10/20?
For the date of Oct 20, the most precipitation ever recorded in Petaluma history is 0.87 inches which happened in 1985.
All-Time Most Precipitation in Petaluma on October 20
Rank Precipitation Year
1 0.87 inches 1985
2 0.85 inches 1979
3 0.58 inches 1992
4 0.54 inches 2004
5 0.26 inches 1894
6 0.20 inches 1970
7 0.15 inches 1895
8 0.10 inches 1944
8 0.10 inches 2007
8 0.10 inches 2021
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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