Petaluma August 18 Weather Records

Daily averages and all-time records for weather in Petaluma, California for the date of August 18.
August 18 All-Time Records
1893–2024
Highest temperature 98 °F 1934
Lowest temperature 42 °F 1936
Lowest daily high 67 °F 1981
Highest daily low 62 °F 2023
Most precipitation 0.23 inches 1983
Most snow none -
August 18 Average Weather
1991–2020 1
Average high 81.6 °F
Average low 53.2 °F
Chance precipitation 1.2%
Chance snow 0%
Petaluma August 18 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 79 62 0.00 n/a
2022 86 52 0.00 n/a
2021 85 53 0.00 n/a
2020 96 62 0.00 n/a
2019 82 54 0.00 n/a
2018 84 48 0.00 n/a
2017 77 56 0.00 n/a
2016 82 56 0.00 n/a
2015 87 54 0.00 n/a
2014 77 55 0.00 n/a
2013 88 55 0.00 n/a
2012 79 56 0.00 n/a
2011 77 52 0.00 n/a
2010 72 55 0.00 0.0
2009 n/a 51 0.00 0.0
2008 n/a 60 0.00 0.0
2007 n/a 51 0.00 0.0
2006 80 49 0.00 0.0
2005 n/a 54 0.00 0.0
2004 85 55 0.00 0.0
2003 n/a 56 0.00 0.0
2002 72 52 0.00 0.0
2001 85 48 0.00 0.0
2000 79 50 0.00 0.0
1999 n/a 54 0.00 0.0
1998 78 51 0.00 0.0
1997 78 59 0.00 0.0
1996 75 47 0.00 0.0
1995 88 48 0.00 0.0
1994 80 53 0.00 0.0
1993 82 51 0.00 0.0
1992 88 52 0.00 0.0
1991 n/a n/a 0.00 0.0
1990 n/a n/a n/a n/a
1989 79 56 0.00 0.0
1988 94 50 0.00 0.0
1987 74 56 0.00 0.0
1986 90 47 0.00 0.0
1985 78 46 0.00 0.0
1984 93 53 0.00 0.0
1983 81 57 0.23 0.0
1982 84 47 0.00 0.0
1981 67 53 0.00 0.0
1980 71 51 0.00 0.0
1979 79 50 0.00 0.0
1978 93 51 0.00 0.0
1977 77 56 0.00 0.0
1976 68 59 0.22 0.0
1975 72 56 0.03 0.0
1974 80 52 0.00 0.0
1973 78 45 0.00 0.0
1972 77 52 0.00 0.0
1971 87 48 0.00 0.0
1970 82 52 0.00 0.0
1969 75 52 0.00 0.0
1968 71 57 0.00 0.0
1967 n/a 51 0.00 0.0
1966 86 54 0.00 0.0
1965 80 55 0.00 0.0
1964 85 48 0.00 0.0
1963 85 43 0.00 0.0
1962 88 48 0.00 0.0
1961 93 48 0.00 0.0
1960 90 52 0.00 0.0
1959 70 52 0.00 0.0
1958 84 57 0.00 0.0
1957 87 47 0.00 0.0
1956 79 53 0.00 0.0
1955 76 49 0.00 0.0
1954 85 46 0.00 0.0
1953 84 51 0.00 0.0
1952 89 48 0.00 0.0
1951 83 54 0.00 0.0
1950 94 52 0.00 0.0
1949 79 50 0.00 0.0
1948 86 56 0.00 0.0
1947 77 57 0.00 0.0
1946 74 55 0.00 0.0
1945 91 55 0.00 0.0
1944 82 46 0.00 0.0
1943 80 54 0.00 n/a
1942 80 54 0.00 n/a
1941 83 51 0.00 n/a
1940 77 55 0.00 n/a
1939 94 52 0.00 n/a
1938 74 54 0.00 0.0
1937 93 50 0.00 n/a
1936 74 42 0.00 n/a
1935 83 44 0.00 0.0
1934 98 48 0.00 n/a
1933 78 52 0.00 n/a
1932 97 44 0.00 n/a
1931 81 46 0.00 n/a
1930 78 55 0.00 n/a
1929 86 54 0.00 n/a
1928 82 42 0.00 n/a
1927 n/a n/a n/a n/a
1926 80 52 0.00 n/a
1925 71 47 0.00 n/a
1924 74 51 n/a n/a
1923 73 50 0.00 n/a
1922 71 48 0.00 n/a
1921 76 n/a n/a n/a
1920 81 47 n/a n/a
1919 84 51 n/a n/a
1918 69 43 0.00 n/a
1917 75 50 n/a n/a
1916 79 49 0.00 n/a
1915 94 43 n/a n/a
1914 73 43 n/a n/a
1913 89 47 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 n/a n/a
1894 n/a n/a n/a n/a
1893 n/a n/a n/a n/a
What's the all-time high for Petaluma on 8/18?
For the date of Aug 18, the highest temperature ever reached in Petaluma history is 98 °F which happened in 1934.
Highest Temperatures in Petaluma on August 18
Rank Temperature Year
1 98 °F 1934
2 97 °F 1932
3 96 °F 2020
4 94 °F 1950
4 94 °F 1988
4 94 °F 1915
4 94 °F 1939
8 93 °F 1937
8 93 °F 1984
8 93 °F 1978
8 93 °F 1961
What's the all-time low for Petaluma on 8/18?
For the date of Aug 18, the lowest temperature ever reached in Petaluma history is 42 °F which has happened 2 times, most recently in 1936.
Lowest Temperatures in Petaluma on August 18
Rank Temperature Year
1 42 °F 1928
1 42 °F 1936
3 43 °F 1915
3 43 °F 1914
3 43 °F 1918
3 43 °F 1963
7 44 °F 1932
7 44 °F 1935
9 45 °F 1973
10 46 °F 1985
10 46 °F 1954
10 46 °F 1931
10 46 °F 1944
Lowest High Temperatures in Petaluma on August 18
Rank Temperature Year
1 67 °F 1981
2 68 °F 1976
3 69 °F 1918
4 70 °F 1959
5 71 °F 1922
5 71 °F 1980
5 71 °F 1925
5 71 °F 1968
9 72 °F 1975
9 72 °F 2010
9 72 °F 2002
What's the most it has ever rained in Petaluma on 8/18?
For the date of Aug 18, the most precipitation ever recorded in Petaluma history is 0.23 inches which happened in 1983.
All-Time Most Precipitation in Petaluma on August 18
Rank Precipitation Year
1 0.23 inches 1983
2 0.22 inches 1976
3 0.03 inches 1975
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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