San Rafael August 21 Weather Records

Daily averages and all-time records for weather in San Rafael, California for the date of August 21.
August 21 All-Time Records
1894–2024
Highest temperature 93 °F 1974
Lowest temperature 46 °F 1955
Lowest daily high 66 °F 2010
Highest daily low 61 °F 2023
Most precipitation 0.06 inches 1968
Most snow none -
August 21 Average Weather
1991–2020 1
Average high 80.8 °F
Average low 55.2 °F
Chance precipitation 0.7%
Chance snow 0%
San Rafael August 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 78 61 0.00 n/a
2022 n/a n/a 0.00 n/a
2021 73 57 0.00 n/a
2020 n/a n/a n/a n/a
2019 n/a n/a n/a n/a
2018 67 54 0.00 n/a
2017 72 60 0.00 n/a
2016 80 57 0.00 n/a
2015 80 59 0.00 n/a
2014 85 59 0.00 n/a
2013 81 56 0.00 0.0
2012 81 51 0.00 0.0
2011 n/a n/a n/a n/a
2010 66 54 0.00 0.0
2009 91 54 0.00 0.0
2008 79 59 0.00 0.0
2007 86 57 0.00 0.0
2006 75 54 0.00 0.0
2005 77 52 0.00 0.0
2004 75 57 n/a 0.0
2003 77 59 0.00 0.0
2002 75 52 0.00 0.0
2001 72 52 0.00 0.0
2000 79 54 0.00 0.0
1999 92 55 0.00 0.0
1998 82 53 0.00 0.0
1997 84 55 0.00 0.0
1996 88 53 0.00 0.0
1995 82 56 0.00 0.0
1994 75 54 0.00 0.0
1993 90 55 0.00 0.0
1992 75 53 0.00 0.0
1991 77 55 0.00 0.0
1990 72 55 0.00 0.0
1989 n/a n/a n/a n/a
1988 77 56 0.00 0.0
1987 73 55 0.00 0.0
1986 75 54 0.00 0.0
1985 77 53 0.00 0.0
1984 73 54 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 75 60 0.00 0.0
1978 74 58 0.00 0.0
1977 81 51 0.00 0.0
1976 83 58 0.00 0.0
1975 83 n/a 0.00 0.0
1974 93 53 0.00 0.0
1973 83 50 0.00 0.0
1972 87 58 0.00 0.0
1971 78 58 0.00 0.0
1970 73 50 0.00 0.0
1969 88 57 0.00 0.0
1968 72 57 0.06 0.0
1967 85 53 0.00 0.0
1966 n/a n/a 0.00 0.0
1965 78 56 0.00 0.0
1964 91 57 0.00 0.0
1963 85 54 0.00 0.0
1962 n/a n/a n/a n/a
1961 80 55 0.00 0.0
1960 82 49 0.00 0.0
1959 81 51 0.00 0.0
1958 83 53 0.00 0.0
1957 78 50 0.00 0.0
1956 76 56 0.00 0.0
1955 81 46 0.00 0.0
1954 85 54 0.00 0.0
1953 82 53 0.00 0.0
1952 82 52 0.00 0.0
1951 79 58 0.00 0.0
1950 87 54 0.00 0.0
1949 83 52 0.00 0.0
1948 89 51 0.00 0.0
1947 70 53 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 76 54 0.00 0.0
1904 78 49 0.00 0.0
1903 78 52 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 8/21?
For the date of Aug 21, the highest temperature ever reached in San Rafael history is 93 °F which happened in 1974.
Highest Temperatures in San Rafael on August 21
Rank Temperature Year
1 93 °F 1974
2 92 °F 1999
3 91 °F 1964
3 91 °F 2009
5 90 °F 1993
6 89 °F 1948
7 88 °F 1996
7 88 °F 1969
9 87 °F 1950
9 87 °F 1972
What's the all-time low for San Rafael on 8/21?
For the date of Aug 21, the lowest temperature ever reached in San Rafael history is 46 °F which happened in 1955.
Lowest Temperatures in San Rafael on August 21
Rank Temperature Year
1 46 °F 1955
2 49 °F 1960
2 49 °F 1904
4 50 °F 1973
4 50 °F 1970
4 50 °F 1957
7 51 °F 1977
7 51 °F 1959
7 51 °F 1948
7 51 °F 2012
Lowest High Temperatures in San Rafael on August 21
Rank Temperature Year
1 66 °F 2010
2 67 °F 2018
3 70 °F 1947
4 72 °F 1990
4 72 °F 1968
4 72 °F 2001
4 72 °F 2017
8 73 °F 2021
8 73 °F 1984
8 73 °F 1970
8 73 °F 1987
What's the most it has ever rained in San Rafael on 8/21?
For the date of Aug 21, the most precipitation ever recorded in San Rafael history is 0.06 inches which happened in 1968.
All-Time Most Precipitation in San Rafael on August 21
Rank Precipitation Year
1 0.06 inches 1968
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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