El Cajon May 21 Weather Records

Daily averages and all-time records for weather in El Cajon, California for the date of May 21.
May 21 All-Time Records
1899–2024
Highest temperature 93 °F 2005
Lowest temperature 40 °F 1948
Lowest daily high 59 °F 1937
Highest daily low 63 °F 1997
Most precipitation 0.34 inches 1920
May 21 Average Weather
1991–2020 1
Average high 77.3 °F
Average low 56.6 °F
Chance precipitation 6.5%
El Cajon May 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 78 61 0.00 n/a
2022 67 58 0.00 n/a
2021 66 55 0.00 n/a
2020 82 52 0.00 n/a
2019 65 55 0.00 n/a
2018 67 56 0.03 n/a
2017 88 58 0.00 n/a
2016 68 57 0.00 n/a
2015 66 58 0.00 n/a
2014 72 54 0.00 n/a
2013 79 61 0.00 n/a
2012 86 56 0.00 n/a
2011 79 58 0.00 n/a
2010 85 54 0.00 0.0
2009 75 58 0.00 0.0
2008 75 53 0.00 0.0
2007 n/a n/a n/a n/a
2006 81 58 0.00 0.0
2005 93 55 0.00 0.0
2004 71 59 0.00 0.0
2003 91 58 0.00 0.0
2002 69 52 0.00 0.0
2001 90 60 0.00 0.0
2000 85 58 0.00 0.0
1999 67 56 0.00 0.0
1998 75 57 0.00 0.0
1997 84 63 0.00 0.0
1996 82 59 0.00 0.0
1995 70 54 0.00 0.0
1994 77 50 0.00 0.0
1993 76 60 0.00 0.0
1992 74 60 0.01 0.0
1991 68 54 0.00 0.0
1990 78 56 0.00 0.0
1989 86 53 0.00 0.0
1988 n/a n/a 0.00 0.0
1987 70 53 0.00 0.0
1986 75 59 0.00 0.0
1985 78 58 0.00 0.0
1984 80 58 0.00 0.0
1983 84 58 0.00 0.0
1982 72 60 n/a n/a
1981 76 46 0.00 0.0
1980 72 56 0.00 0.0
1959 69 52 0.00 0.0
1958 89 52 0.00 0.0
1957 67 54 0.25 0.0
1956 79 48 0.00 0.0
1955 73 55 0.00 0.0
1954 n/a n/a n/a n/a
1953 83 46 0.00 0.0
1952 91 54 0.00 0.0
1951 73 53 0.00 0.0
1950 76 44 0.00 0.0
1949 73 43 0.00 0.0
1948 78 40 0.00 n/a
1947 72 55 0.00 0.0
1946 68 55 0.00 0.0
1945 80 42 0.00 0.0
1944 72 54 0.00 n/a
1943 80 50 0.00 0.0
1942 77 51 0.00 n/a
1941 92 49 0.00 n/a
1940 75 57 0.00 n/a
1939 78 43 0.00 n/a
1938 71 51 0.02 n/a
1937 59 53 0.00 n/a
1936 76 47 0.00 n/a
1935 91 48 0.00 n/a
1934 81 50 0.00 n/a
1933 75 49 0.00 n/a
1932 76 53 0.00 n/a
1931 90 50 0.00 n/a
1930 76 45 0.00 n/a
1929 75 52 0.00 n/a
1928 77 55 0.06 n/a
1927 74 53 0.00 n/a
1926 80 56 0.00 n/a
1925 79 52 0.00 n/a
1924 79 47 0.00 n/a
1923 72 50 n/a n/a
1922 77 48 0.00 n/a
1921 60 52 0.22 n/a
1920 63 55 0.34 n/a
1919 68 52 0.14 n/a
1918 76 53 0.00 n/a
1917 75 51 0.00 n/a
1916 83 49 0.00 n/a
1915 77 52 0.00 n/a
1914 64 53 0.00 n/a
1913 77 56 0.00 n/a
1912 80 55 0.00 n/a
1911 74 n/a n/a n/a
1910 73 52 0.00 n/a
1909 68 52 0.00 n/a
1908 70 43 0.00 n/a
1907 79 55 0.00 n/a
1906 72 50 0.00 n/a
1905 72 53 0.00 n/a
1904 75 51 0.00 n/a
1903 72 45 0.05 n/a
1902 73 44 0.00 n/a
1901 n/a n/a 0.00 n/a
1900 87 56 0.00 n/a
1899 72 44 0.00 0.0
What's the all-time high for El Cajon on 5/21?
For the date of May 21, the highest temperature ever reached in El Cajon history is 93 °F which happened in 2005.
Highest Temperatures in El Cajon on May 21
Rank Temperature Year
1 93 °F 2005
2 92 °F 1941
3 91 °F 1952
3 91 °F 1935
3 91 °F 2003
6 90 °F 1931
6 90 °F 2001
8 89 °F 1958
9 88 °F 2017
10 87 °F 1900
What's the all-time low for El Cajon on 5/21?
For the date of May 21, the lowest temperature ever reached in El Cajon history is 40 °F which happened in 1948.
Lowest Temperatures in El Cajon on May 21
Rank Temperature Year
1 40 °F 1948
2 42 °F 1945
3 43 °F 1908
3 43 °F 1939
3 43 °F 1949
6 44 °F 1950
6 44 °F 1899
6 44 °F 1902
9 45 °F 1930
9 45 °F 1903
Lowest High Temperatures in El Cajon on May 21
Rank Temperature Year
1 59 °F 1937
2 60 °F 1921
3 63 °F 1920
4 64 °F 1914
5 65 °F 2019
6 66 °F 2015
6 66 °F 2021
8 67 °F 1957
8 67 °F 1999
8 67 °F 2018
8 67 °F 2022
What's the most it has ever rained in El Cajon on 5/21?
For the date of May 21, the most precipitation ever recorded in El Cajon history is 0.34 inches which happened in 1920.
All-Time Most Precipitation in El Cajon on May 21
Rank Precipitation Year
1 0.34 inches 1920
2 0.25 inches 1957
3 0.22 inches 1921
4 0.14 inches 1919
5 0.06 inches 1928
6 0.05 inches 1903
7 0.03 inches 2018
8 0.02 inches 1938
9 0.01 inches 1992
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.
© H Brothers Inc, 2021–2024
Contact us | Privacy policy