Antioch August 21 Weather Records

Daily averages and all-time records for weather in Antioch, California for the date of August 21.
August 21 All-Time Records
1915–2021
Highest temperature 101 °F 1992
Lowest temperature 45 °F 1959
Lowest daily high 75 °F 1959
Highest daily low 71 °F 1992
Most precipitation 0.35 inches 2003
August 21 Average Weather
1991–2020 1
Average high 89.9 °F
Average low 59.6 °F
Chance precipitation 0.8%
Antioch August 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2021 76 59 0.00 n/a
2020 94 64 0.00 n/a
2019 94 60 0.00 n/a
2018 76 57 0.00 n/a
2017 n/a n/a n/a n/a
2016 88 59 0.00 n/a
2015 90 57 0.00 n/a
2014 85 59 0.00 n/a
2013 86 60 0.00 n/a
2012 n/a n/a n/a n/a
2011 90 56 0.00 n/a
2010 86 53 0.00 0.0
2009 93 66 0.00 0.0
2008 88 62 0.00 0.0
2007 95 62 0.00 0.0
2006 88 55 0.00 0.0
2005 n/a n/a 0.00 0.0
2004 82 61 0.00 0.0
2003 81 61 0.35 0.0
2002 86 53 0.00 0.0
2001 n/a n/a n/a n/a
2000 90 58 0.00 0.0
1999 93 57 0.00 0.0
1998 83 52 0.00 0.0
1997 80 61 0.01 0.0
1996 84 60 0.00 0.0
1995 99 63 0.00 0.0
1994 93 59 0.00 0.0
1993 87 60 0.00 0.0
1992 101 71 0.00 0.0
1991 89 53 0.00 0.0
1990 86 58 0.00 0.0
1989 82 58 0.00 0.0
1988 91 59 0.00 0.0
1987 79 53 0.00 0.0
1986 89 51 0.00 0.0
1985 88 50 0.00 0.0
1984 87 52 0.00 0.0
1983 83 62 0.00 0.0
1982 94 59 0.00 0.0
1981 83 51 0.00 0.0
1980 86 54 0.00 0.0
1979 81 55 0.00 0.0
1978 97 55 0.00 0.0
1977 91 55 0.00 0.0
1976 88 59 0.00 0.0
1975 88 57 0.00 0.0
1974 94 54 0.00 0.0
1973 91 52 0.00 0.0
1972 82 53 0.00 0.0
1971 84 53 0.00 0.0
1970 84 48 0.00 0.0
1969 98 57 0.00 0.0
1968 78 52 0.00 0.0
1967 90 57 0.00 0.0
1966 84 53 0.00 0.0
1965 88 56 0.00 0.0
1964 99 61 0.00 0.0
1963 90 54 0.00 0.0
1962 98 58 0.00 0.0
1961 100 60 0.00 0.0
1960 97 51 0.00 0.0
1959 75 45 0.00 0.0
1958 95 58 0.00 0.0
1957 90 52 0.00 0.0
1956 87 54 0.00 0.0
1955 94 58 0.00 0.0
1954 88 49 0.00 0.0
1953 86 53 0.00 0.0
1952 90 53 0.00 0.0
1951 84 58 0.00 0.0
1950 79 56 0.00 0.0
1949 93 50 0.00 0.0
1948 92 54 0.00 0.0
1947 81 53 0.00 0.0
1946 89 52 0.00 0.0
1945 99 60 0.00 0.0
1944 92 46 0.00 0.0
1943 88 60 0.00 0.0
1942 90 55 0.00 n/a
1941 87 53 0.00 0.0
1940 89 49 0.00 n/a
1939 93 63 0.00 n/a
1938 86 53 0.00 n/a
1937 97 56 0.00 n/a
1936 79 57 0.00 n/a
1935 88 53 0.00 n/a
1934 89 57 0.00 n/a
1933 91 61 0.00 n/a
1932 93 52 0.00 n/a
1931 94 52 0.00 n/a
1930 93 51 0.00 n/a
1929 98 55 0.00 n/a
1928 98 51 0.00 n/a
1927 93 57 0.00 n/a
1926 83 55 0.00 n/a
1925 84 58 0.00 n/a
1924 n/a n/a n/a n/a
1923 88 62 n/a n/a
1922 78 58 n/a n/a
1921 92 52 n/a n/a
1920 90 54 n/a n/a
1919 98 54 n/a n/a
1918 97 58 n/a n/a
1917 91 54 n/a n/a
1916 95 61 0.00 n/a
What's the all-time high for Antioch on 8/21?
For the date of Aug 21, the highest temperature ever reached in Antioch history is 101 °F which happened in 1992.
Highest Temperatures in Antioch on August 21
Rank Temperature Year
1 101 °F 1992
2 100 °F 1961
3 99 °F 1945
3 99 °F 1964
3 99 °F 1995
6 98 °F 1929
6 98 °F 1928
6 98 °F 1962
6 98 °F 1919
6 98 °F 1969
What's the all-time low for Antioch on 8/21?
For the date of Aug 21, the lowest temperature ever reached in Antioch history is 45 °F which happened in 1959.
Lowest Temperatures in Antioch on August 21
Rank Temperature Year
1 45 °F 1959
2 46 °F 1944
3 48 °F 1970
4 49 °F 1954
4 49 °F 1940
6 50 °F 1949
6 50 °F 1985
8 51 °F 1960
8 51 °F 1981
8 51 °F 1930
8 51 °F 1986
8 51 °F 1928
Lowest High Temperatures in Antioch on August 21
Rank Temperature Year
1 75 °F 1959
2 76 °F 2021
2 76 °F 2018
4 78 °F 1922
4 78 °F 1968
6 79 °F 1987
6 79 °F 1936
6 79 °F 1950
9 80 °F 1997
10 81 °F 2003
10 81 °F 1979
10 81 °F 1947
What's the most it has ever rained in Antioch on 8/21?
For the date of Aug 21, the most precipitation ever recorded in Antioch history is 0.35 inches which happened in 2003.
All-Time Most Precipitation in Antioch on August 21
Rank Precipitation Year
1 0.35 inches 2003
2 0.01 inches 1997
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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