San Rafael August 18 Weather Records

Daily averages and all-time records for weather in San Rafael, California for the date of August 18.
August 18 All-Time Records
1894–2024
Highest temperature 95 °F 2013
Lowest temperature 47 °F 1963
Lowest daily high 66 °F 1976
Highest daily low 61 °F 1990
Most precipitation 0.13 inches 1976
Most snow none -
August 18 Average Weather
1991–2020 1
Average high 80.4 °F
Average low 55.2 °F
Chance precipitation 0.5%
Chance snow 0%
San Rafael August 18 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 84 60 0.00 n/a
2022 n/a n/a 0.00 n/a
2021 77 55 0.00 n/a
2020 n/a n/a n/a n/a
2019 n/a n/a n/a n/a
2018 87 51 0.00 n/a
2017 78 56 0.00 n/a
2016 n/a n/a n/a n/a
2015 82 55 0.00 n/a
2014 78 56 0.00 n/a
2013 95 56 0.00 0.0
2012 86 57 0.00 0.0
2011 n/a n/a n/a n/a
2010 75 54 0.00 0.0
2009 77 50 0.00 0.0
2008 68 57 0.00 0.0
2007 75 59 0.00 0.0
2006 77 52 0.00 0.0
2005 68 52 0.00 0.0
2004 n/a n/a n/a 0.0
2003 77 55 0.00 0.0
2002 75 52 0.00 0.0
2001 82 54 0.00 0.0
2000 77 54 0.00 0.0
1999 68 55 0.00 0.0
1998 69 54 0.00 0.0
1997 79 59 0.00 0.0
1996 83 51 0.00 0.0
1995 88 53 0.00 0.0
1994 83 52 0.00 0.0
1993 78 57 0.00 0.0
1992 87 52 0.00 0.0
1991 75 55 0.00 0.0
1990 74 61 0.00 0.0
1989 n/a n/a n/a n/a
1988 89 56 0.00 0.0
1987 82 54 0.00 0.0
1986 76 57 0.00 0.0
1985 75 55 0.00 0.0
1984 93 58 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 n/a n/a n/a n/a
1979 n/a n/a 0.00 0.0
1978 94 54 0.00 0.0
1977 79 53 0.00 0.0
1976 66 58 0.13 0.0
1975 70 60 0.02 0.0
1974 72 52 0.00 0.0
1973 79 49 0.00 0.0
1972 82 54 0.00 0.0
1971 82 53 0.00 0.0
1970 80 52 0.00 0.0
1969 74 53 0.00 0.0
1968 n/a n/a 0.00 0.0
1967 85 58 0.00 0.0
1966 88 56 0.00 0.0
1965 77 53 0.00 0.0
1964 84 51 0.00 0.0
1963 83 47 0.00 0.0
1962 n/a n/a n/a n/a
1961 89 57 0.00 0.0
1960 87 56 0.00 0.0
1959 70 49 0.00 0.0
1958 84 57 0.00 0.0
1957 84 49 0.00 0.0
1956 89 52 0.00 0.0
1955 72 49 0.00 0.0
1954 88 50 0.00 0.0
1953 82 54 0.00 0.0
1952 87 50 0.00 0.0
1951 82 56 0.00 0.0
1950 85 52 0.00 0.0
1949 n/a n/a n/a n/a
1948 76 55 0.00 0.0
1947 80 54 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 83 49 0.00 0.0
1904 75 51 0.00 0.0
1903 82 51 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 n/a n/a n/a n/a
1894 n/a n/a n/a n/a
What's the all-time high for San Rafael on 8/18?
For the date of Aug 18, the highest temperature ever reached in San Rafael history is 95 °F which happened in 2013.
Highest Temperatures in San Rafael on August 18
Rank Temperature Year
1 95 °F 2013
2 94 °F 1978
3 93 °F 1984
4 89 °F 1961
4 89 °F 1956
4 89 °F 1988
7 88 °F 1966
7 88 °F 1995
7 88 °F 1954
10 87 °F 2018
10 87 °F 1960
10 87 °F 1952
10 87 °F 1992
What's the all-time low for San Rafael on 8/18?
For the date of Aug 18, the lowest temperature ever reached in San Rafael history is 47 °F which happened in 1963.
Lowest Temperatures in San Rafael on August 18
Rank Temperature Year
1 47 °F 1963
2 49 °F 1959
2 49 °F 1905
2 49 °F 1973
2 49 °F 1955
2 49 °F 1957
7 50 °F 1954
7 50 °F 2009
7 50 °F 1952
10 51 °F 2018
10 51 °F 1903
10 51 °F 1904
10 51 °F 1964
10 51 °F 1996
Lowest High Temperatures in San Rafael on August 18
Rank Temperature Year
1 66 °F 1976
2 68 °F 1999
2 68 °F 2008
2 68 °F 2005
5 69 °F 1998
6 70 °F 1975
6 70 °F 1959
8 72 °F 1955
8 72 °F 1974
10 74 °F 1969
10 74 °F 1990
What's the most it has ever rained in San Rafael on 8/18?
For the date of Aug 18, the most precipitation ever recorded in San Rafael history is 0.13 inches which happened in 1976.
All-Time Most Precipitation in San Rafael on August 18
Rank Precipitation Year
1 0.13 inches 1976
2 0.02 inches 1975
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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