Riverside April 20 Weather Records

Daily averages and all-time records for weather in Riverside, California for the date of April 20.
April 20 All-Time Records
1893–2024
Highest temperature 101 °F 2009
Lowest temperature 36 °F 1972
Lowest daily high 53 °F 2007
Highest daily low 58 °F 2011
Most precipitation 0.91 inches 1988
April 20 Average Weather
1991–2020 1
Average high 77.5 °F
Average low 50.4 °F
Chance precipitation 9.9%
Riverside April 20 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2024 75 51 0.00 n/a
2023 86 45 0.00 n/a
2022 73 53 0.00 n/a
2021 80 52 0.00 n/a
2020 68 54 0.00 0.0
2019 68 54 0.00 0.0
2018 80 45 0.00 0.0
2017 82 51 0.00 0.0
2016 91 55 0.00 0.0
2015 78 52 0.00 0.0
2014 85 54 0.00 0.0
2013 93 51 0.00 0.0
2012 99 56 0.00 0.0
2011 70 58 0.00 n/a
2010 72 50 0.05 n/a
2009 101 56 0.00 n/a
2008 n/a n/a n/a n/a
2007 53 45 0.46 n/a
2006 83 45 0.00 n/a
2005 73 44 0.00 n/a
2004 73 45 0.00 n/a
2003 78 46 0.00 n/a
2002 72 40 0.00 n/a
2001 65 41 0.00 n/a
2000 83 47 0.00 n/a
1999 82 50 0.00 n/a
1998 92 49 0.00 0.0
1997 85 55 0.00 0.0
1996 76 47 0.00 0.0
1995 61 42 0.01 0.0
1994 82 55 0.00 0.0
1993 91 50 0.00 0.0
1992 87 52 0.00 0.0
1991 72 49 0.00 0.0
1990 73 56 0.00 0.0
1989 90 55 0.00 0.0
1988 69 50 0.91 0.0
1987 86 49 0.00 0.0
1986 93 45 0.00 0.0
1985 67 51 0.00 0.0
1984 75 41 0.00 0.0
1983 65 52 0.83 0.0
1982 83 50 0.00 0.0
1981 70 47 0.00 0.0
1980 82 51 0.00 0.0
1979 81 53 0.00 0.0
1978 72 48 0.00 0.0
1977 84 45 0.00 0.0
1976 89 47 0.00 0.0
1975 83 42 0.00 0.0
1974 71 44 0.00 0.0
1973 72 40 0.00 0.0
1972 75 36 0.00 0.0
1971 63 47 0.00 0.0
1970 73 47 0.00 0.0
1969 87 47 0.00 0.0
1968 68 49 0.00 0.0
1967 58 38 0.08 0.0
1966 78 41 0.00 0.0
1965 88 51 0.00 0.0
1964 68 41 0.00 0.0
1963 60 45 0.00 0.0
1962 75 46 0.00 0.0
1961 69 49 0.00 0.0
1960 87 50 0.00 0.0
1959 81 49 0.00 0.0
1958 97 55 0.00 0.0
1957 n/a 46 0.54 0.0
1956 90 48 0.00 0.0
1955 76 36 0.00 0.0
1954 70 52 0.00 0.0
1953 65 49 0.15 0.0
1952 66 47 0.03 0.0
1951 71 55 0.00 0.0
1950 86 51 0.00 0.0
1949 89 41 0.00 0.0
1948 74 47 0.00 0.0
1947 75 56 0.00 0.0
1946 78 52 0.00 0.0
1945 79 50 0.00 0.0
1944 67 47 0.00 0.0
1943 73 52 0.00 0.0
1942 74 50 0.00 0.0
1941 75 39 0.00 0.0
1940 85 46 0.00 0.0
1939 87 45 0.00 0.0
1938 90 56 0.00 0.0
1937 82 43 0.00 0.0
1936 75 48 0.00 0.0
1935 83 44 0.00 0.0
1934 87 48 0.00 0.0
1933 n/a 46 0.00 0.0
1932 81 54 0.00 n/a
1931 82 45 0.00 0.0
1930 95 47 0.00 0.0
1929 69 48 0.09 n/a
1928 74 42 0.00 n/a
1927 80 44 0.00 n/a
1926 78 46 n/a n/a
1925 67 48 0.07 n/a
1924 85 43 n/a n/a
1923 70 52 n/a n/a
1922 92 41 n/a n/a
1921 75 40 0.00 n/a
1920 69 49 n/a n/a
1919 82 45 0.00 n/a
1918 90 43 n/a n/a
1917 91 40 n/a n/a
1916 96 42 n/a n/a
1915 74 54 0.05 n/a
1914 90 49 0.00 n/a
1913 70 48 0.10 n/a
1912 67 36 0.00 n/a
1911 75 54 0.00 n/a
1910 80 42 0.00 n/a
1909 70 46 n/a n/a
1908 77 44 n/a n/a
1907 80 47 n/a n/a
1906 93 42 n/a 0.0
1905 71 38 0.00 n/a
1904 62 n/a 0.07 n/a
1903 68 50 0.00 n/a
1902 65 51 0.00 n/a
1901 n/a n/a n/a n/a
1900 n/a n/a n/a n/a
1899 n/a n/a n/a n/a
1898 n/a n/a n/a n/a
1897 n/a n/a n/a n/a
1896 n/a n/a n/a n/a
1895 75 55 0.00 n/a
1894 90 52 n/a n/a
1893 90 54 0.00 n/a
What's the all-time high for Riverside on 4/20?
For the date of Apr 20, the highest temperature ever reached in Riverside history is 101 °F which happened in 2009.
Highest Temperatures in Riverside on April 20
Rank Temperature Year
1 101 °F 2009
2 99 °F 2012
3 97 °F 1958
4 96 °F 1916
5 95 °F 1930
6 93 °F 1986
6 93 °F 2013
6 93 °F 1906
9 92 °F 1998
9 92 °F 1922
What's the all-time low for Riverside on 4/20?
For the date of Apr 20, the lowest temperature ever reached in Riverside history is 36 °F which has happened 3 times, most recently in 1972.
Lowest Temperatures in Riverside on April 20
Rank Temperature Year
1 36 °F 1972
1 36 °F 1955
1 36 °F 1912
4 38 °F 1905
4 38 °F 1967
6 39 °F 1941
7 40 °F 2002
7 40 °F 1921
7 40 °F 1973
7 40 °F 1917
Lowest High Temperatures in Riverside on April 20
Rank Temperature Year
1 53 °F 2007
2 58 °F 1967
3 60 °F 1963
4 61 °F 1995
5 62 °F 1904
6 63 °F 1971
7 65 °F 1953
7 65 °F 1902
7 65 °F 1983
7 65 °F 2001
What's the most it has ever rained in Riverside on 4/20?
For the date of Apr 20, the most precipitation ever recorded in Riverside history is 0.91 inches which happened in 1988.
All-Time Most Precipitation in Riverside on April 20
Rank Precipitation Year
1 0.91 inches 1988
2 0.83 inches 1983
3 0.54 inches 1957
4 0.46 inches 2007
5 0.15 inches 1953
6 0.10 inches 1913
7 0.09 inches 1929
8 0.08 inches 1967
9 0.07 inches 1904
9 0.07 inches 1925
Weather Station Details
Years Station Coordinates
1999–2024 Riverside Municipal Airport location
1893–1998 Riverside Fire Station location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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