Antioch September 20 Weather Records

Daily averages and all-time records for weather in Antioch, California for the date of September 20.
September 20 All-Time Records
1915–2021
Highest temperature 106 °F 1936
Lowest temperature 43 °F 1965
Lowest daily high 70 °F 1986
Highest daily low 75 °F 1916
Most precipitation 0.07 inches 1977
September 20 Average Weather
1991–2020 1
Average high 85.6 °F
Average low 57.5 °F
Chance precipitation 1.1%
Antioch September 20 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2020 90 60 0.00 n/a
2019 84 61 0.00 n/a
2018 n/a n/a n/a n/a
2017 n/a n/a n/a n/a
2016 85 61 0.00 n/a
2015 99 66 0.00 n/a
2014 85 61 0.00 n/a
2013 78 58 0.00 n/a
2012 86 53 0.00 n/a
2011 100 62 0.00 n/a
2010 80 55 0.00 0.0
2009 n/a n/a 0.00 0.0
2008 78 55 0.00 0.0
2007 71 51 0.00 0.0
2006 85 63 0.00 0.0
2005 78 52 0.00 0.0
2004 71 48 0.00 0.0
2003 90 60 0.00 0.0
2002 94 63 0.00 0.0
2001 85 54 0.00 0.0
2000 98 64 0.00 0.0
1999 78 55 0.00 0.0
1998 83 61 0.00 0.0
1997 85 66 0.00 0.0
1996 87 58 0.00 0.0
1995 98 65 0.00 0.0
1994 88 57 0.00 0.0
1993 82 49 0.00 0.0
1992 93 57 0.00 0.0
1991 85 54 0.00 0.0
1990 90 62 0.00 0.0
1989 76 53 0.00 0.0
1988 86 58 0.00 0.0
1987 88 55 0.00 0.0
1986 70 50 0.00 0.0
1985 85 52 0.00 0.0
1984 95 61 0.00 0.0
1983 90 67 0.00 0.0
1982 76 51 0.00 0.0
1981 89 54 0.00 0.0
1980 80 48 0.00 0.0
1979 88 52 0.00 0.0
1978 79 46 0.00 0.0
1977 73 52 0.07 0.0
1976 80 54 0.00 0.0
1975 83 52 0.00 0.0
1974 87 52 0.00 0.0
1973 82 64 0.00 0.0
1972 73 48 0.00 0.0
1971 90 51 0.00 0.0
1970 75 57 0.00 0.0
1969 77 51 0.00 0.0
1968 78 51 0.00 0.0
1967 90 53 0.00 0.0
1966 85 52 0.00 0.0
1965 81 43 0.00 0.0
1964 93 57 0.00 0.0
1963 81 52 0.00 0.0
1962 85 52 0.00 0.0
1961 87 54 0.00 0.0
1960 86 48 0.00 0.0
1959 75 50 0.00 0.0
1958 100 63 0.00 0.0
1957 83 52 0.00 0.0
1956 75 54 0.00 0.0
1955 n/a n/a 0.00 0.0
1954 92 47 0.00 0.0
1953 77 56 0.00 0.0
1952 90 55 0.00 0.0
1951 88 65 0.00 0.0
1950 89 51 0.00 0.0
1949 103 53 0.00 0.0
1948 79 49 n/a n/a
1947 94 48 0.00 0.0
1946 96 52 0.00 0.0
1945 77 53 0.00 0.0
1944 85 43 0.00 n/a
1943 101 52 0.00 n/a
1942 85 48 0.00 n/a
1941 80 55 0.00 n/a
1940 90 53 0.00 n/a
1939 102 67 0.00 n/a
1938 87 51 0.00 n/a
1937 90 56 0.00 n/a
1936 106 60 0.00 n/a
1935 80 50 0.00 0.0
1934 80 57 0.00 n/a
1933 80 53 0.00 n/a
1932 83 50 0.00 n/a
1931 87 45 0.00 n/a
1930 84 45 0.00 n/a
1929 86 57 0.00 n/a
1928 n/a n/a 0.00 n/a
1927 n/a 68 0.00 n/a
1926 77 54 0.00 n/a
1925 81 48 0.00 0.0
1924 n/a n/a n/a n/a
1923 84 58 n/a n/a
1922 86 54 n/a n/a
1921 89 49 n/a n/a
1920 89 54 n/a n/a
1919 103 51 0.00 n/a
1918 87 62 0.00 n/a
1917 83 68 n/a n/a
1916 97 75 n/a n/a
What's the all-time high for Antioch on 9/20?
For the date of Sep 20, the highest temperature ever reached in Antioch history is 106 °F which happened in 1936.
Highest Temperatures in Antioch on September 20
Rank Temperature Year
1 106 °F 1936
2 103 °F 1919
2 103 °F 1949
4 102 °F 1939
5 101 °F 1943
6 100 °F 2011
6 100 °F 1958
8 99 °F 2015
9 98 °F 1995
9 98 °F 2000
What's the all-time low for Antioch on 9/20?
For the date of Sep 20, the lowest temperature ever reached in Antioch history is 43 °F which has happened 2 times, most recently in 1965.
Lowest Temperatures in Antioch on September 20
Rank Temperature Year
1 43 °F 1944
1 43 °F 1965
3 45 °F 1931
3 45 °F 1930
5 46 °F 1978
6 47 °F 1954
7 48 °F 1925
7 48 °F 1947
7 48 °F 1942
7 48 °F 1972
7 48 °F 1980
7 48 °F 2004
7 48 °F 1960
Lowest High Temperatures in Antioch on September 20
Rank Temperature Year
1 70 °F 1986
2 71 °F 2004
2 71 °F 2007
4 73 °F 1977
4 73 °F 1972
6 75 °F 1959
6 75 °F 1970
6 75 °F 1956
9 76 °F 1989
9 76 °F 1982
What's the most it has ever rained in Antioch on 9/20?
For the date of Sep 20, the most precipitation ever recorded in Antioch history is 0.07 inches which happened in 1977.
All-Time Most Precipitation in Antioch on September 20
Rank Precipitation Year
1 0.07 inches 1977
Weather Station Details
Years Station Coordinates
1956–2021 Antioch Pumping Plant #3 location
1915–1955 Antioch Fireboard Mills location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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