El Cajon May 20 Weather Records

Daily averages and all-time records for weather in El Cajon, California for the date of May 20.
May 20 All-Time Records
1899–2024
Highest temperature 101 °F 1942
Lowest temperature 42 °F 1950
Lowest daily high 60 °F 1957
Highest daily low 66 °F 2005
Most precipitation 0.40 inches 1921
May 20 Average Weather
1991–2020 1
Average high 77.1 °F
Average low 56.5 °F
Chance precipitation 6.9%
El Cajon May 20 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 74 61 0.00 n/a
2022 67 57 0.00 n/a
2021 68 57 0.00 n/a
2020 76 50 0.00 n/a
2019 67 54 0.35 n/a
2018 70 59 0.00 n/a
2017 94 56 0.00 n/a
2016 74 60 0.00 n/a
2015 71 56 0.00 n/a
2014 70 59 0.00 n/a
2013 79 59 0.00 n/a
2012 82 57 0.00 n/a
2011 74 56 0.00 n/a
2010 85 54 0.00 0.0
2009 83 59 0.00 0.0
2008 91 63 0.00 0.0
2007 n/a n/a n/a n/a
2006 81 59 0.00 0.0
2005 89 66 0.00 0.0
2004 79 57 0.00 0.0
2003 88 55 0.00 0.0
2002 70 57 0.00 0.0
2001 88 59 0.00 0.0
2000 91 55 0.00 0.0
1999 73 57 0.00 0.0
1998 74 55 0.00 0.0
1997 80 60 0.00 0.0
1996 78 59 0.00 0.0
1995 71 56 0.00 0.0
1994 74 48 0.00 0.0
1993 76 62 0.00 0.0
1992 75 61 0.00 0.0
1991 71 48 0.00 0.0
1990 73 54 0.00 0.0
1989 85 53 0.00 0.0
1988 93 57 0.00 0.0
1987 67 50 0.00 0.0
1986 n/a 57 0.00 0.0
1985 74 58 0.00 0.0
1984 80 53 0.00 0.0
1983 89 50 0.00 0.0
1982 72 59 n/a n/a
1981 70 55 0.00 0.0
1980 77 57 0.00 0.0
1959 69 49 0.00 0.0
1958 77 49 0.00 0.0
1957 60 49 0.00 0.0
1956 79 48 0.00 0.0
1955 81 51 0.00 0.0
1954 n/a n/a n/a n/a
1953 82 50 0.03 0.0
1952 90 51 0.00 0.0
1951 81 52 0.00 0.0
1950 72 42 0.00 0.0
1949 64 43 0.08 0.0
1948 71 42 0.00 n/a
1947 77 54 0.00 0.0
1946 72 55 0.00 0.0
1945 76 44 0.00 0.0
1944 67 50 0.00 n/a
1943 87 46 0.00 0.0
1942 101 50 0.00 n/a
1941 89 45 0.00 n/a
1940 74 58 0.00 n/a
1939 80 45 0.00 n/a
1938 66 52 0.06 n/a
1937 65 56 0.00 n/a
1936 75 52 0.00 n/a
1935 84 48 0.00 n/a
1934 81 48 0.00 n/a
1933 74 48 0.00 n/a
1932 75 47 0.00 n/a
1931 92 49 0.00 n/a
1930 82 51 0.00 n/a
1929 73 56 0.00 n/a
1928 65 57 0.03 n/a
1927 64 53 0.00 n/a
1926 83 57 0.00 n/a
1925 78 52 0.00 n/a
1924 84 45 0.00 n/a
1923 69 55 n/a n/a
1922 69 47 0.00 n/a
1921 61 51 0.40 n/a
1920 79 55 0.00 n/a
1919 72 50 0.00 n/a
1918 71 51 0.00 n/a
1917 64 50 0.00 n/a
1916 73 52 0.00 n/a
1915 72 44 0.00 n/a
1914 84 53 0.00 n/a
1913 71 53 0.00 n/a
1912 72 53 0.00 n/a
1911 71 48 n/a n/a
1910 65 n/a 0.00 n/a
1909 70 51 0.00 n/a
1908 78 45 0.00 n/a
1907 82 48 0.00 n/a
1906 74 52 0.00 n/a
1905 71 56 0.00 n/a
1904 74 48 0.00 n/a
1903 65 53 0.00 n/a
1902 67 42 0.00 n/a
1901 n/a n/a 0.00 n/a
1900 86 56 0.00 n/a
1899 75 44 0.00 0.0
What's the all-time high for El Cajon on 5/20?
For the date of May 20, the highest temperature ever reached in El Cajon history is 101 °F which happened in 1942.
Highest Temperatures in El Cajon on May 20
Rank Temperature Year
1 101 °F 1942
2 94 °F 2017
3 93 °F 1988
4 92 °F 1931
5 91 °F 2008
5 91 °F 2000
7 90 °F 1952
8 89 °F 1941
8 89 °F 2005
8 89 °F 1983
What's the all-time low for El Cajon on 5/20?
For the date of May 20, the lowest temperature ever reached in El Cajon history is 42 °F which has happened 3 times, most recently in 1950.
Lowest Temperatures in El Cajon on May 20
Rank Temperature Year
1 42 °F 1902
1 42 °F 1948
1 42 °F 1950
4 43 °F 1949
5 44 °F 1899
5 44 °F 1945
5 44 °F 1915
8 45 °F 1924
8 45 °F 1941
8 45 °F 1908
8 45 °F 1939
Lowest High Temperatures in El Cajon on May 20
Rank Temperature Year
1 60 °F 1957
2 61 °F 1921
3 64 °F 1949
3 64 °F 1927
3 64 °F 1917
6 65 °F 1903
6 65 °F 1928
6 65 °F 1910
6 65 °F 1937
10 66 °F 1938
What's the most it has ever rained in El Cajon on 5/20?
For the date of May 20, the most precipitation ever recorded in El Cajon history is 0.40 inches which happened in 1921.
All-Time Most Precipitation in El Cajon on May 20
Rank Precipitation Year
1 0.40 inches 1921
2 0.35 inches 2019
3 0.08 inches 1949
4 0.06 inches 1938
5 0.03 inches 1928
5 0.03 inches 1953
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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