Santa Barbara September 21 Weather Records

Daily averages and all-time records for weather in Santa Barbara, California for the date of September 21.
September 21 All-Time Records
1893–2024
Highest temperature 104 °F 1939
Lowest temperature 44 °F 1944
Lowest daily high 65 °F 2010
Highest daily low 69 °F 1939
Most precipitation 0.19 inches 2007
September 21 Average Weather
1991–2020 1
Average high 75.0 °F
Average low 54.9 °F
Chance precipitation 4.6%
Santa Barbara September 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 73 55 0.00 n/a
2022 74 51 0.00 n/a
2021 75 56 0.00 n/a
2020 70 58 0.00 n/a
2019 78 54 0.00 n/a
2018 74 58 0.00 n/a
2017 77 55 0.00 n/a
2016 75 60 0.00 n/a
2015 86 64 0.00 n/a
2014 75 62 0.00 n/a
2013 77 52 0.00 n/a
2012 78 58 0.00 n/a
2011 68 60 0.00 n/a
2010 65 53 0.00 n/a
2009 70 59 0.00 n/a
2008 72 53 0.00 n/a
2007 68 50 0.19 n/a
2006 72 48 0.00 n/a
2005 74 49 0.00 n/a
2004 79 52 0.00 n/a
2003 68 57 0.00 n/a
2002 67 55 0.00 n/a
2001 68 59 0.00 n/a
2000 69 63 0.05 n/a
1999 78 48 0.03 n/a
1998 72 56 0.00 n/a
1997 n/a n/a n/a n/a
1996 n/a n/a n/a n/a
1995 71 60 0.00 0.0
1994 72 54 0.00 0.0
1993 73 56 0.00 0.0
1992 78 61 0.00 0.0
1991 71 56 0.00 0.0
1990 75 61 0.05 0.0
1989 84 50 0.00 0.0
1988 72 53 0.00 0.0
1987 77 60 0.00 0.0
1986 72 46 0.00 0.0
1985 74 51 0.00 0.0
1984 75 62 0.00 0.0
1983 79 65 0.00 0.0
1982 79 53 0.00 0.0
1981 69 54 0.00 0.0
1980 69 54 0.00 0.0
1979 71 63 0.00 0.0
1978 81 50 0.00 0.0
1977 77 54 0.00 0.0
1976 75 61 0.00 0.0
1975 73 51 0.00 0.0
1974 74 58 0.00 0.0
1973 68 55 0.00 0.0
1972 84 54 0.00 0.0
1971 73 58 0.00 0.0
1970 71 47 0.00 0.0
1969 73 53 0.00 0.0
1968 75 50 0.00 0.0
1967 78 59 0.00 0.0
1966 77 51 0.00 0.0
1965 79 48 0.00 0.0
1964 71 59 0.00 0.0
1963 80 57 0.00 0.0
1962 72 56 0.00 0.0
1961 71 60 0.00 0.0
1960 72 52 0.00 0.0
1959 74 55 0.00 0.0
1958 72 56 0.00 0.0
1957 68 55 0.00 0.0
1956 76 53 0.00 0.0
1955 70 54 0.00 0.0
1954 75 49 0.00 0.0
1953 73 51 0.00 0.0
1952 81 53 0.00 0.0
1951 76 61 0.00 0.0
1950 75 56 0.00 0.0
1949 71 55 0.00 0.0
1948 80 52 0.00 0.0
1947 75 55 0.03 0.0
1946 74 55 0.00 0.0
1945 74 56 0.00 0.0
1944 78 44 0.00 0.0
1943 80 50 0.00 0.0
1942 85 46 0.00 0.0
1941 85 53 0.00 0.0
1940 76 54 0.00 0.0
1939 104 69 0.00 0.0
1938 84 55 0.00 0.0
1937 73 55 0.00 0.0
1936 77 53 0.00 0.0
1935 73 58 0.00 0.0
1934 69 60 0.00 0.0
1933 72 51 0.00 0.0
1932 70 50 0.00 0.0
1931 93 52 0.00 0.0
1930 75 56 0.00 0.0
1929 74 60 0.00 0.0
1928 85 55 0.00 0.0
1927 80 50 0.00 n/a
1926 82 48 0.00 n/a
1925 88 45 0.00 0.0
1924 74 44 n/a n/a
1923 79 52 0.00 n/a
1922 83 57 n/a n/a
1921 75 54 0.00 n/a
1920 75 53 n/a n/a
1919 65 59 n/a n/a
1918 75 66 0.00 n/a
1917 68 56 n/a n/a
1916 75 57 n/a n/a
1915 78 58 0.00 n/a
1914 70 60 0.00 n/a
1913 76 56 0.00 n/a
1912 79 60 0.00 n/a
1911 78 55 0.09 0.0
1910 78 52 0.00 n/a
1909 73 48 0.00 n/a
1908 72 54 n/a n/a
1907 70 50 0.00 n/a
1906 79 58 0.00 n/a
1905 80 56 0.00 n/a
1904 76 57 n/a n/a
1903 70 56 0.00 n/a
1902 79 52 0.00 n/a
1901 71 52 0.00 n/a
1900 n/a n/a 0.00 n/a
1899 74 56 0.00 n/a
1898 68 57 0.00 n/a
1897 93 n/a n/a n/a
1896 n/a n/a n/a n/a
1895 78 50 0.00 n/a
1894 73 57 0.00 n/a
1893 75 51 0.00 n/a
What's the all-time high for Santa Barbara on 9/21?
For the date of Sep 21, the highest temperature ever reached in Santa Barbara history is 104 °F which happened in 1939.
Highest Temperatures in Santa Barbara on September 21
Rank Temperature Year
1 104 °F 1939
2 93 °F 1931
2 93 °F 1897
4 88 °F 1925
5 86 °F 2015
6 85 °F 1941
6 85 °F 1942
6 85 °F 1928
9 84 °F 1938
9 84 °F 1972
9 84 °F 1989
What's the all-time low for Santa Barbara on 9/21?
For the date of Sep 21, the lowest temperature ever reached in Santa Barbara history is 44 °F which has happened 2 times, most recently in 1944.
Lowest Temperatures in Santa Barbara on September 21
Rank Temperature Year
1 44 °F 1924
1 44 °F 1944
3 45 °F 1925
4 46 °F 1942
4 46 °F 1986
6 47 °F 1970
7 48 °F 1909
7 48 °F 1999
7 48 °F 1926
7 48 °F 1965
7 48 °F 2006
Lowest High Temperatures in Santa Barbara on September 21
Rank Temperature Year
1 65 °F 1919
1 65 °F 2010
3 67 °F 2002
4 68 °F 1898
4 68 °F 1973
4 68 °F 1957
4 68 °F 1917
4 68 °F 2003
4 68 °F 2007
4 68 °F 2011
4 68 °F 2001
What's the most it has ever rained in Santa Barbara on 9/21?
For the date of Sep 21, the most precipitation ever recorded in Santa Barbara history is 0.19 inches which happened in 2007.
All-Time Most Precipitation in Santa Barbara on September 21
Rank Precipitation Year
1 0.19 inches 2007
2 0.09 inches 1911
3 0.05 inches 2000
3 0.05 inches 1990
5 0.03 inches 1947
5 0.03 inches 1999
Weather Station Details
Years Station Coordinates
1942–2024 Santa Barbara Municipal Airport location
1893–1941 Santa Barbara location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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