Riverside October 31 Weather Records

Daily averages and all-time records for weather in Riverside, California for the date of October 31 (Halloween).
October 31 All-Time Records
1893–2024
Highest temperature 100 °F 1918
Lowest temperature 31 °F 1971
Lowest daily high 58 °F 1927
Highest daily low 62 °F 2008
Most precipitation 2.27 inches 1927
October 31 Average Weather
1991–2020 1
Average high 79.1 °F
Average low 51.2 °F
Chance precipitation 9.7%
Riverside October 31 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 85 47 0.00 n/a
2022 87 50 0.00 n/a
2021 80 57 0.00 n/a
2020 93 50 0.00 0.0
2019 76 53 0.00 0.0
2018 82 58 0.00 0.0
2017 71 59 0.00 n/a
2016 71 56 0.00 0.0
2015 92 61 0.00 0.0
2014 72 56 0.00 0.0
2013 84 47 0.00 0.0
2012 77 50 0.00 0.0
2011 87 51 0.00 0.0
2010 72 49 0.00 n/a
2009 87 48 0.00 n/a
2008 85 62 0.00 n/a
2007 n/a n/a n/a n/a
2006 68 49 0.00 n/a
2005 90 50 0.00 n/a
2004 73 45 0.00 n/a
2003 66 44 0.00 n/a
2002 65 49 0.00 n/a
2001 72 51 0.00 n/a
2000 69 42 0.00 n/a
1999 94 44 0.00 n/a
1998 79 47 0.00 0.0
1997 89 50 0.00 0.0
1996 66 n/a 0.02 0.0
1995 n/a 60 0.00 0.0
1994 92 46 0.00 0.0
1993 83 53 0.00 0.0
1992 75 54 0.09 0.0
1991 76 50 0.00 0.0
1990 80 51 0.00 0.0
1989 82 45 0.00 0.0
1988 96 54 0.00 0.0
1987 69 58 0.41 0.0
1986 77 50 0.00 0.0
1985 80 53 0.00 0.0
1984 70 52 0.00 0.0
1983 77 62 0.00 0.0
1982 74 48 0.00 0.0
1981 82 49 0.00 0.0
1980 85 50 0.00 0.0
1979 74 39 0.00 0.0
1978 72 49 0.00 0.0
1977 74 45 0.00 0.0
1976 84 43 0.00 0.0
1975 73 42 0.00 0.0
1974 65 44 0.00 0.0
1973 89 47 0.00 0.0
1972 n/a n/a 0.00 0.0
1971 67 31 0.00 0.0
1970 82 40 0.00 0.0
1969 87 44 0.00 0.0
1968 67 51 0.00 0.0
1967 93 57 0.00 0.0
1966 95 48 0.00 0.0
1965 86 48 0.00 0.0
1964 84 44 0.00 0.0
1963 79 47 0.00 0.0
1962 93 50 0.00 0.0
1961 62 41 0.00 0.0
1960 84 44 0.00 0.0
1959 70 44 0.00 0.0
1958 80 43 0.00 0.0
1957 68 55 0.61 0.0
1956 67 44 0.00 0.0
1955 76 37 0.00 0.0
1954 73 41 0.00 0.0
1953 89 39 0.00 0.0
1952 69 53 0.00 0.0
1951 70 58 0.00 0.0
1950 75 53 0.00 0.0
1949 91 42 0.00 0.0
1948 71 35 0.00 0.0
1947 91 44 0.00 0.0
1946 78 36 0.00 0.0
1945 70 50 0.00 0.0
1944 65 51 0.00 0.0
1943 83 41 0.00 0.0
1942 87 40 0.00 0.0
1941 81 40 0.00 0.0
1940 75 43 0.00 0.0
1939 96 51 0.00 0.0
1938 64 55 0.01 0.0
1937 79 50 0.00 0.0
1936 69 55 0.41 0.0
1935 68 31 0.00 0.0
1934 85 51 0.00 0.0
1933 68 54 0.03 0.0
1932 76 39 0.00 0.0
1931 92 47 0.00 0.0
1930 91 44 0.00 0.0
1929 76 36 0.00 0.0
1928 73 44 0.00 0.0
1927 58 56 2.27 n/a
1926 84 51 n/a n/a
1925 77 56 n/a n/a
1924 89 41 n/a n/a
1923 65 49 0.86 n/a
1922 76 37 n/a n/a
1921 90 42 n/a n/a
1920 69 47 n/a n/a
1919 76 38 n/a n/a
1918 100 43 n/a n/a
1917 96 37 n/a n/a
1916 93 37 0.00 0.0
1915 86 40 n/a n/a
1914 82 50 0.00 n/a
1913 78 56 0.00 n/a
1912 81 37 0.00 n/a
1911 65 44 0.00 n/a
1910 79 45 0.00 n/a
1909 80 40 n/a n/a
1908 80 40 0.00 n/a
1907 73 47 0.00 n/a
1906 83 45 n/a n/a
1905 65 39 0.00 n/a
1904 83 39 0.00 n/a
1903 83 41 0.00 n/a
1902 68 40 0.00 n/a
1901 79 42 0.00 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 83 39 0.00 n/a
1894 81 37 n/a n/a
1893 n/a n/a 0.00 n/a
What's the all-time high for Riverside on 10/31?
For the date of Oct 31, the highest temperature ever reached in Riverside history is 100 °F which happened in 1918.
Highest Temperatures in Riverside on October 31
Rank Temperature Year
1 100 °F 1918
2 96 °F 1917
2 96 °F 1939
2 96 °F 1988
5 95 °F 1966
6 94 °F 1999
7 93 °F 2020
7 93 °F 1967
7 93 °F 1916
7 93 °F 1962
What's the all-time low for Riverside on 10/31?
For the date of Oct 31, the lowest temperature ever reached in Riverside history is 31 °F which has happened 2 times, most recently in 1971.
Lowest Temperatures in Riverside on October 31
Rank Temperature Year
1 31 °F 1971
1 31 °F 1935
3 35 °F 1948
4 36 °F 1929
4 36 °F 1946
6 37 °F 1955
6 37 °F 1916
6 37 °F 1917
6 37 °F 1894
6 37 °F 1912
6 37 °F 1922
Lowest High Temperatures in Riverside on October 31
Rank Temperature Year
1 58 °F 1927
2 62 °F 1961
3 64 °F 1938
4 65 °F 1905
4 65 °F 1944
4 65 °F 1923
4 65 °F 2002
4 65 °F 1974
4 65 °F 1911
10 66 °F 1996
10 66 °F 2003
What's the most it has ever rained in Riverside on 10/31?
For the date of Oct 31, the most precipitation ever recorded in Riverside history is 2.27 inches which happened in 1927.
All-Time Most Precipitation in Riverside on October 31
Rank Precipitation Year
1 2.27 inches 1927
2 0.86 inches 1923
3 0.61 inches 1957
4 0.41 inches 1987
4 0.41 inches 1936
6 0.09 inches 1992
7 0.03 inches 1933
8 0.02 inches 1996
9 0.01 inches 1938
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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