El Cajon August 20 Weather Records

Daily averages and all-time records for weather in El Cajon, California for the date of August 20.
August 20 All-Time Records
1899–2024
Highest temperature 100 °F 2000
Lowest temperature 49 °F 1949
Lowest daily high 71 °F 1906
Highest daily low 71 °F 2023
Most precipitation 1.20 inches 2023
August 20 Average Weather
1991–2020 1
Average high 89.5 °F
Average low 64.9 °F
Chance precipitation 0.9%
El Cajon August 20 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 75 71 1.20 n/a
2022 82 65 0.00 n/a
2021 79 68 0.00 n/a
2020 96 71 0.00 n/a
2019 90 62 0.00 n/a
2018 85 70 0.00 n/a
2017 81 65 0.00 n/a
2016 88 66 0.00 n/a
2015 83 68 0.00 n/a
2014 83 67 0.00 n/a
2013 89 62 0.00 n/a
2012 87 70 0.00 n/a
2011 84 61 0.00 n/a
2010 97 68 0.00 0.0
2009 86 63 0.00 0.0
2008 87 61 0.00 0.0
2007 n/a n/a n/a n/a
2006 86 62 0.00 0.0
2005 n/a n/a n/a n/a
2004 86 63 0.00 0.0
2003 88 65 0.00 0.0
2002 80 64 0.00 0.0
2001 92 64 0.00 0.0
2000 100 55 0.00 0.0
1999 91 60 0.00 0.0
1998 n/a n/a n/a n/a
1997 96 71 0.00 0.0
1996 n/a n/a 0.00 0.0
1995 n/a n/a 0.00 0.0
1994 87 68 0.00 0.0
1993 86 58 0.00 0.0
1992 92 70 0.00 0.0
1991 85 60 0.00 0.0
1990 80 59 0.00 0.0
1989 78 65 0.00 0.0
1988 81 63 0.00 0.0
1987 82 61 0.00 0.0
1986 98 71 0.00 0.0
1985 83 61 0.00 0.0
1984 83 69 0.00 0.0
1983 84 66 0.00 0.0
1982 98 61 0.00 0.0
1981 96 63 0.00 0.0
1980 86 61 0.00 0.0
1959 81 61 0.00 0.0
1958 88 65 0.00 0.0
1957 94 65 0.00 0.0
1956 88 57 0.00 0.0
1955 97 57 0.00 0.0
1954 84 53 0.00 0.0
1953 89 n/a 0.00 0.0
1952 90 59 0.00 0.0
1951 93 59 0.00 0.0
1950 93 52 0.00 0.0
1949 90 49 0.00 0.0
1948 90 54 0.00 0.0
1947 82 57 0.00 0.0
1946 94 63 0.00 0.0
1945 87 65 0.00 0.0
1944 93 54 0.00 n/a
1943 82 58 0.00 n/a
1942 89 63 0.00 n/a
1941 92 58 0.00 n/a
1940 92 60 0.00 n/a
1939 89 61 0.00 n/a
1938 86 49 0.00 n/a
1937 84 60 0.00 n/a
1936 85 58 0.00 n/a
1935 96 58 0.00 n/a
1934 88 62 0.00 n/a
1933 79 63 0.00 n/a
1932 92 52 0.00 n/a
1931 92 58 0.00 n/a
1930 99 61 0.00 n/a
1929 90 65 0.00 n/a
1928 92 58 0.00 n/a
1927 91 60 0.00 n/a
1926 82 62 0.00 n/a
1925 95 50 0.00 n/a
1924 75 59 0.03 n/a
1923 86 55 n/a n/a
1922 89 59 0.00 n/a
1921 89 55 0.00 n/a
1920 84 56 0.00 n/a
1919 93 61 0.00 n/a
1918 87 56 0.00 n/a
1917 82 56 n/a n/a
1916 78 54 0.00 n/a
1915 97 57 0.00 n/a
1914 82 56 0.00 n/a
1913 93 59 0.07 n/a
1912 83 50 0.00 0.0
1911 95 52 0.00 n/a
1910 91 59 0.00 n/a
1909 96 62 0.00 n/a
1908 98 60 0.00 n/a
1907 93 50 0.00 n/a
1906 71 62 0.03 n/a
1905 82 59 0.00 n/a
1904 84 71 0.00 n/a
1903 99 65 0.00 n/a
1902 83 n/a 0.00 n/a
1901 86 60 n/a n/a
1900 75 50 n/a n/a
1899 85 58 0.00 0.0
What's the all-time high for El Cajon on 8/20?
For the date of Aug 20, the highest temperature ever reached in El Cajon history is 100 °F which happened in 2000.
Highest Temperatures in El Cajon on August 20
Rank Temperature Year
1 100 °F 2000
2 99 °F 1930
2 99 °F 1903
4 98 °F 1908
4 98 °F 1986
4 98 °F 1982
7 97 °F 2010
7 97 °F 1915
7 97 °F 1955
10 96 °F 1997
10 96 °F 2020
10 96 °F 1981
10 96 °F 1909
10 96 °F 1935
What's the all-time low for El Cajon on 8/20?
For the date of Aug 20, the lowest temperature ever reached in El Cajon history is 49 °F which has happened 2 times, most recently in 1949.
Lowest Temperatures in El Cajon on August 20
Rank Temperature Year
1 49 °F 1938
1 49 °F 1949
3 50 °F 1907
3 50 °F 1912
3 50 °F 1900
3 50 °F 1925
7 52 °F 1911
7 52 °F 1950
7 52 °F 1932
10 53 °F 1954
Lowest High Temperatures in El Cajon on August 20
Rank Temperature Year
1 71 °F 1906
2 75 °F 2023
2 75 °F 1900
2 75 °F 1924
5 78 °F 1989
5 78 °F 1916
7 79 °F 1933
7 79 °F 2021
9 80 °F 2002
9 80 °F 1990
What's the most it has ever rained in El Cajon on 8/20?
For the date of Aug 20, the most precipitation ever recorded in El Cajon history is 1.20 inches which happened in 2023.
All-Time Most Precipitation in El Cajon on August 20
Rank Precipitation Year
1 1.20 inches 2023
2 0.07 inches 1913
3 0.03 inches 1924
3 0.03 inches 1906
Weather Station Details
Years Station Coordinates
1979–2024 El Cajon location
1899–1979 El Cajon 2 E location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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