San Rafael September 18 Weather Records

Daily averages and all-time records for weather in San Rafael, California for the date of September 18.
September 18 All-Time Records
1894–2024
Highest temperature 99 °F 2000
Lowest temperature 36 °F 1894
Lowest daily high 54 °F 1895
Highest daily low 65 °F 1984
Most precipitation 4.39 inches 1959
Most snow none -
September 18 Average Weather
1991–2020 1
Average high 79.0 °F
Average low 53.9 °F
Chance precipitation 3.3%
Chance snow 0%
San Rafael September 18 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 86 57 0.00 n/a
2022 66 58 0.75 n/a
2021 73 54 0.00 n/a
2020 n/a n/a n/a n/a
2019 n/a n/a n/a n/a
2018 73 51 0.00 n/a
2017 74 59 0.00 n/a
2016 n/a n/a 0.00 n/a
2015 85 54 0.00 n/a
2014 76 61 0.04 n/a
2013 n/a n/a 0.00 n/a
2012 74 49 0.00 0.0
2011 n/a n/a n/a n/a
2010 70 57 0.00 0.0
2009 93 61 0.00 0.0
2008 72 48 0.00 0.0
2007 73 52 0.00 0.0
2006 82 54 0.00 0.0
2005 70 52 0.00 0.0
2004 n/a n/a n/a 0.0
2003 90 54 0.00 0.0
2002 90 57 0.00 0.0
2001 68 52 0.00 0.0
2000 99 63 0.00 0.0
1999 71 51 0.00 0.0
1998 75 57 0.00 0.0
1997 77 54 0.00 0.0
1996 83 53 0.00 0.0
1995 96 55 0.00 0.0
1994 80 52 0.00 0.0
1993 78 n/a 0.00 0.0
1992 82 52 0.00 0.0
1991 79 52 0.00 0.0
1990 75 56 0.00 0.0
1989 66 52 0.09 0.0
1988 85 55 0.00 0.0
1987 80 49 0.00 0.0
1986 70 n/a 0.03 0.0
1985 75 50 0.00 0.0
1984 98 65 0.00 0.0
1983 n/a n/a n/a n/a
1982 n/a n/a n/a n/a
1981 n/a n/a n/a n/a
1980 82 56 0.00 0.0
1979 78 57 0.00 0.0
1978 72 52 0.00 0.0
1977 71 59 0.00 0.0
1976 80 52 0.00 0.0
1975 71 52 0.00 0.0
1974 76 49 0.00 0.0
1973 83 55 0.00 0.0
1972 75 49 0.00 0.0
1971 86 52 0.00 0.0
1970 93 59 0.00 0.0
1969 77 54 0.00 0.0
1968 95 58 0.00 0.0
1967 86 59 0.02 0.0
1966 84 61 0.05 0.0
1965 78 46 0.00 0.0
1964 87 50 0.00 0.0
1963 76 58 0.00 0.0
1962 75 58 0.00 0.0
1961 73 51 0.00 0.0
1960 79 49 0.00 0.0
1959 66 59 4.39 0.0
1958 94 54 0.00 0.0
1957 74 58 0.00 0.0
1956 86 61 0.08 0.0
1955 82 47 0.00 0.0
1954 85 49 0.00 0.0
1953 77 56 0.00 0.0
1952 78 51 0.00 0.0
1951 76 53 0.00 0.0
1950 72 52 0.00 0.0
1949 93 51 0.00 0.0
1948 67 54 0.09 0.0
1947 71 46 0.00 0.0
1946 n/a n/a n/a n/a
1945 n/a n/a n/a n/a
1944 n/a n/a n/a n/a
1943 n/a n/a n/a n/a
1942 n/a n/a n/a n/a
1941 n/a n/a n/a n/a
1940 n/a n/a n/a n/a
1939 n/a n/a n/a n/a
1938 n/a n/a n/a n/a
1937 n/a n/a n/a n/a
1936 n/a n/a n/a n/a
1935 n/a n/a n/a n/a
1934 n/a n/a n/a n/a
1933 n/a n/a n/a n/a
1932 n/a n/a n/a n/a
1931 n/a n/a n/a n/a
1930 n/a n/a n/a n/a
1929 n/a n/a n/a n/a
1928 n/a n/a n/a n/a
1927 n/a n/a n/a n/a
1926 n/a n/a n/a n/a
1925 n/a n/a n/a n/a
1924 n/a n/a n/a n/a
1923 n/a n/a n/a n/a
1922 n/a n/a n/a n/a
1921 n/a n/a n/a n/a
1920 n/a n/a n/a n/a
1919 n/a n/a n/a n/a
1918 n/a n/a n/a n/a
1917 n/a n/a n/a n/a
1916 n/a n/a n/a n/a
1915 n/a n/a n/a n/a
1914 n/a n/a n/a n/a
1913 n/a n/a n/a 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 68 58 0.00 0.0
1903 77 45 0.00 0.0
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 54 44 0.00 n/a
1894 86 36 0.00 n/a
What's the all-time high for San Rafael on 9/18?
For the date of Sep 18, the highest temperature ever reached in San Rafael history is 99 °F which happened in 2000.
Highest Temperatures in San Rafael on September 18
Rank Temperature Year
1 99 °F 2000
2 98 °F 1984
3 96 °F 1995
4 95 °F 1968
5 94 °F 1958
6 93 °F 1970
6 93 °F 2009
6 93 °F 1949
9 90 °F 2002
9 90 °F 2003
What's the all-time low for San Rafael on 9/18?
For the date of Sep 18, the lowest temperature ever reached in San Rafael history is 36 °F which happened in 1894.
Lowest Temperatures in San Rafael on September 18
Rank Temperature Year
1 36 °F 1894
2 44 °F 1895
3 45 °F 1903
4 46 °F 1965
4 46 °F 1947
6 47 °F 1955
7 48 °F 2008
8 49 °F 1974
8 49 °F 1972
8 49 °F 2012
8 49 °F 1954
8 49 °F 1960
8 49 °F 1987
Lowest High Temperatures in San Rafael on September 18
Rank Temperature Year
1 54 °F 1895
2 66 °F 2022
2 66 °F 1989
2 66 °F 1959
5 67 °F 1948
6 68 °F 2001
6 68 °F 1904
8 70 °F 2010
8 70 °F 2005
8 70 °F 1986
What's the most it has ever rained in San Rafael on 9/18?
For the date of Sep 18, the most precipitation ever recorded in San Rafael history is 4.39 inches which happened in 1959.
All-Time Most Precipitation in San Rafael on September 18
Rank Precipitation Year
1 4.39 inches 1959
2 0.75 inches 2022
3 0.09 inches 1948
3 0.09 inches 1989
5 0.08 inches 1956
6 0.05 inches 1966
7 0.04 inches 2014
8 0.03 inches 1986
9 0.02 inches 1967
Weather Station Details
Years Station Coordinates
1894–2024 San Rafael Civic Center location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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