Petaluma May 18 Weather Records

Daily averages and all-time records for weather in Petaluma, California for the date of May 18.
May 18 All-Time Records
1893–2024
Highest temperature 92 °F 1997
Lowest temperature 34 °F 1918
Lowest daily high 59 °F 1977
Highest daily low 68 °F 1920
Most precipitation 1.32 inches 1925
Most snow none -
May 18 Average Weather
1991–2020 1
Average high 72.1 °F
Average low 47.9 °F
Chance precipitation 11.7%
Chance snow 0%
Petaluma May 18 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 69 50 0.00 n/a
2022 86 45 0.00 n/a
2021 71 46 0.00 n/a
2020 67 50 0.85 n/a
2019 60 47 0.41 n/a
2018 71 49 0.00 n/a
2017 78 44 0.00 n/a
2016 87 51 0.00 n/a
2015 62 49 0.00 n/a
2014 69 51 0.00 n/a
2013 74 42 0.00 n/a
2012 76 43 0.00 n/a
2011 66 46 0.26 n/a
2010 68 52 0.04 0.0
2009 n/a 48 0.00 0.0
2008 n/a 49 0.00 0.0
2007 67 45 0.00 0.0
2006 67 49 0.00 0.0
2005 63 55 0.50 0.0
2004 71 50 0.00 0.0
2003 73 48 0.00 0.0
2002 68 46 0.00 0.0
2001 77 51 0.00 0.0
2000 77 50 0.00 0.0
1999 64 51 0.00 0.0
1998 70 n/a 0.00 0.0
1997 92 55 0.00 0.0
1996 66 56 0.20 0.0
1995 70 49 0.00 0.0
1994 70 43 0.02 0.0
1993 71 47 0.00 0.0
1992 73 55 0.00 0.0
1991 64 46 0.00 0.0
1990 71 41 0.00 0.0
1989 69 45 0.00 0.0
1988 81 45 0.00 0.0
1987 72 47 0.00 0.0
1986 84 45 0.00 0.0
1985 74 55 0.00 0.0
1984 78 48 0.00 0.0
1983 87 45 0.00 0.0
1982 75 44 0.00 0.0
1981 65 54 0.26 0.0
1980 81 47 0.00 0.0
1979 76 49 0.00 0.0
1978 90 43 0.00 0.0
1977 59 40 0.07 0.0
1976 70 43 0.00 0.0
1975 76 52 0.00 0.0
1974 62 38 0.00 0.0
1973 82 50 0.00 0.0
1972 69 45 0.00 0.0
1971 78 45 0.00 0.0
1970 70 50 0.00 0.0
1969 77 54 0.00 0.0
1968 73 48 0.00 0.0
1967 72 47 0.00 0.0
1966 81 44 0.00 0.0
1965 67 43 0.00 0.0
1964 70 47 0.00 0.0
1963 81 50 0.00 0.0
1962 69 45 0.00 0.0
1961 65 49 0.00 0.0
1960 70 45 0.00 0.0
1959 69 42 0.00 0.0
1958 77 51 0.00 0.0
1957 63 57 0.85 0.0
1956 66 51 0.00 0.0
1955 87 50 0.00 0.0
1954 82 46 0.00 0.0
1953 70 44 0.00 0.0
1952 90 47 0.00 0.0
1951 74 47 0.00 0.0
1950 74 41 0.00 0.0
1949 66 49 0.09 0.0
1948 65 42 0.00 0.0
1947 84 47 0.00 0.0
1946 60 50 0.00 0.0
1945 65 44 0.00 0.0
1944 69 44 0.00 0.0
1943 82 46 0.00 n/a
1942 76 45 0.00 n/a
1941 71 56 0.00 n/a
1940 71 52 0.00 n/a
1939 63 40 0.00 n/a
1938 75 42 0.00 n/a
1937 70 45 0.00 n/a
1936 70 45 0.00 0.0
1935 76 40 0.00 0.0
1934 70 44 0.00 n/a
1933 66 40 0.00 n/a
1932 66 49 0.00 n/a
1931 85 50 0.00 n/a
1930 76 44 0.00 n/a
1929 66 42 0.00 n/a
1928 69 49 0.00 n/a
1927 n/a n/a n/a n/a
1926 90 52 0.00 n/a
1925 67 46 1.32 n/a
1924 76 51 0.00 n/a
1923 63 42 0.00 n/a
1922 63 50 0.04 n/a
1921 64 48 n/a n/a
1920 89 68 n/a n/a
1919 60 43 0.00 n/a
1918 64 34 0.00 n/a
1917 63 36 0.00 0.0
1916 63 50 n/a n/a
1915 63 47 0.00 n/a
1914 69 48 0.00 n/a
1913 68 45 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 0.35 n/a
What's the all-time high for Petaluma on 5/18?
For the date of May 18, the highest temperature ever reached in Petaluma history is 92 °F which happened in 1997.
Highest Temperatures in Petaluma on May 18
Rank Temperature Year
1 92 °F 1997
2 90 °F 1952
2 90 °F 1978
2 90 °F 1926
5 89 °F 1920
6 87 °F 2016
6 87 °F 1955
6 87 °F 1983
9 86 °F 2022
10 85 °F 1931
What's the all-time low for Petaluma on 5/18?
For the date of May 18, the lowest temperature ever reached in Petaluma history is 34 °F which happened in 1918.
Lowest Temperatures in Petaluma on May 18
Rank Temperature Year
1 34 °F 1918
2 36 °F 1917
3 38 °F 1974
4 40 °F 1935
4 40 °F 1977
4 40 °F 1933
4 40 °F 1939
8 41 °F 1950
8 41 °F 1990
10 42 °F 1959
10 42 °F 1923
10 42 °F 2013
10 42 °F 1938
10 42 °F 1929
10 42 °F 1948
Lowest High Temperatures in Petaluma on May 18
Rank Temperature Year
1 59 °F 1977
2 60 °F 1946
2 60 °F 2019
2 60 °F 1919
5 62 °F 1974
5 62 °F 2015
7 63 °F 1957
7 63 °F 1915
7 63 °F 1917
7 63 °F 1916
7 63 °F 1923
7 63 °F 1922
7 63 °F 1939
7 63 °F 2005
What's the most it has ever rained in Petaluma on 5/18?
For the date of May 18, the most precipitation ever recorded in Petaluma history is 1.32 inches which happened in 1925.
All-Time Most Precipitation in Petaluma on May 18
Rank Precipitation Year
1 1.32 inches 1925
2 0.85 inches 1957
2 0.85 inches 2020
4 0.50 inches 2005
5 0.41 inches 2019
6 0.35 inches 1893
7 0.26 inches 2011
7 0.26 inches 1981
9 0.20 inches 1996
10 0.09 inches 1949
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