Riverside October 18 Weather Records

Daily averages and all-time records for weather in Riverside, California for the date of October 18.
October 18 All-Time Records
1893–2024
Highest temperature 104 °F 1921
Lowest temperature 37 °F 1904
Lowest daily high 62 °F 1943
Highest daily low 72 °F 2012
Most precipitation 0.80 inches 1934
October 18 Average Weather
1991–2020 1
Average high 82.7 °F
Average low 54.5 °F
Chance precipitation 7.6%
Riverside October 18 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 102 57 0.00 n/a
2022 94 60 0.00 n/a
2021 68 52 0.00 n/a
2020 90 58 0.00 0.0
2019 83 54 0.00 0.0
2018 88 53 0.00 0.0
2017 91 63 0.00 0.0
2016 79 54 0.00 0.0
2015 81 66 0.00 0.0
2014 80 62 0.00 0.0
2013 88 51 0.00 0.0
2012 80 72 0.00 0.0
2011 86 57 0.00 0.0
2010 70 59 0.03 n/a
2009 89 59 0.00 n/a
2008 87 56 0.00 n/a
2007 n/a n/a n/a n/a
2006 80 52 0.00 n/a
2005 65 53 0.63 n/a
2004 71 59 0.01 n/a
2003 100 60 0.00 n/a
2002 69 51 0.00 n/a
2001 87 47 0.00 n/a
2000 74 56 0.00 n/a
1999 86 51 0.00 n/a
1998 n/a n/a 0.00 0.0
1997 91 52 0.00 0.0
1996 81 53 0.00 0.0
1995 83 54 0.00 0.0
1994 81 46 0.00 0.0
1993 n/a n/a 0.00 0.0
1992 77 55 0.00 0.0
1991 96 56 0.00 0.0
1990 85 58 0.00 0.0
1989 98 53 0.00 0.0
1988 88 59 0.00 0.0
1987 77 61 0.00 0.0
1986 73 48 0.00 0.0
1985 78 54 0.00 0.0
1984 81 47 0.00 0.0
1983 82 51 0.00 0.0
1982 81 49 0.00 0.0
1981 89 48 0.00 0.0
1980 82 42 0.00 0.0
1979 75 57 0.00 0.0
1978 84 51 0.00 0.0
1977 80 55 0.00 0.0
1976 76 62 0.00 0.0
1975 78 49 0.00 0.0
1974 90 53 0.00 0.0
1973 94 55 0.00 0.0
1972 n/a 54 0.00 0.0
1971 68 44 0.00 0.0
1970 80 49 0.00 0.0
1969 70 47 0.00 0.0
1968 87 48 0.00 0.0
1967 99 49 0.00 0.0
1966 95 43 0.00 0.0
1965 79 45 0.00 0.0
1964 90 53 0.00 0.0
1963 74 55 0.07 0.0
1962 71 54 0.01 0.0
1961 82 55 0.00 0.0
1960 79 46 0.00 0.0
1959 89 50 0.00 0.0
1958 96 52 0.00 0.0
1957 71 59 0.00 0.0
1956 74 50 0.00 0.0
1955 77 55 0.00 0.0
1954 91 46 0.00 0.0
1953 75 42 0.00 0.0
1952 82 58 0.00 0.0
1951 94 44 0.00 0.0
1950 90 40 0.00 0.0
1949 66 53 0.01 0.0
1948 73 57 0.08 0.0
1947 90 49 0.00 0.0
1946 81 40 0.00 0.0
1945 84 59 0.00 0.0
1944 94 48 0.00 0.0
1943 62 59 0.22 0.0
1942 92 48 0.00 0.0
1941 86 51 0.00 0.0
1940 99 55 0.00 0.0
1939 91 46 0.00 0.0
1938 80 40 0.00 0.0
1937 90 52 0.00 0.0
1936 69 57 0.00 0.0
1935 83 52 0.00 0.0
1934 64 54 0.80 0.0
1933 100 47 0.00 0.0
1932 72 40 0.00 0.0
1931 81 57 0.00 0.0
1930 95 43 0.00 0.0
1929 76 56 0.00 0.0
1928 87 48 0.00 0.0
1927 97 47 0.00 n/a
1926 83 49 n/a n/a
1925 80 45 n/a n/a
1924 94 40 n/a n/a
1923 99 48 n/a n/a
1922 92 45 n/a n/a
1921 104 53 n/a n/a
1920 65 51 0.13 n/a
1919 81 38 n/a n/a
1918 74 44 n/a n/a
1917 84 44 n/a n/a
1916 65 51 0.02 0.0
1915 100 44 n/a n/a
1914 82 53 0.00 n/a
1913 96 47 0.00 n/a
1912 85 48 0.00 n/a
1911 91 42 0.00 n/a
1910 86 49 0.00 n/a
1909 71 44 n/a n/a
1908 64 40 0.04 n/a
1907 63 59 0.00 n/a
1906 73 50 n/a n/a
1905 70 44 0.00 n/a
1904 80 37 0.00 n/a
1903 97 48 0.00 n/a
1902 81 45 0.00 n/a
1901 77 44 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 79 47 0.00 n/a
1894 73 55 0.00 n/a
1893 70 42 0.00 n/a
What's the all-time high for Riverside on 10/18?
For the date of Oct 18, the highest temperature ever reached in Riverside history is 104 °F which happened in 1921.
Highest Temperatures in Riverside on October 18
Rank Temperature Year
1 104 °F 1921
2 102 °F 2023
3 100 °F 1933
3 100 °F 2003
3 100 °F 1915
6 99 °F 1923
6 99 °F 1940
6 99 °F 1967
9 98 °F 1989
10 97 °F 1903
10 97 °F 1927
What's the all-time low for Riverside on 10/18?
For the date of Oct 18, the lowest temperature ever reached in Riverside history is 37 °F which happened in 1904.
Lowest Temperatures in Riverside on October 18
Rank Temperature Year
1 37 °F 1904
2 38 °F 1919
3 40 °F 1908
3 40 °F 1950
3 40 °F 1938
3 40 °F 1932
3 40 °F 1924
3 40 °F 1946
9 42 °F 1893
9 42 °F 1980
9 42 °F 1953
9 42 °F 1911
Lowest High Temperatures in Riverside on October 18
Rank Temperature Year
1 62 °F 1943
2 63 °F 1907
3 64 °F 1908
3 64 °F 1934
5 65 °F 1916
5 65 °F 1920
5 65 °F 2005
8 66 °F 1949
9 68 °F 1971
9 68 °F 2021
What's the most it has ever rained in Riverside on 10/18?
For the date of Oct 18, the most precipitation ever recorded in Riverside history is 0.80 inches which happened in 1934.
All-Time Most Precipitation in Riverside on October 18
Rank Precipitation Year
1 0.80 inches 1934
2 0.63 inches 2005
3 0.22 inches 1943
4 0.13 inches 1920
5 0.08 inches 1948
6 0.07 inches 1963
7 0.04 inches 1908
8 0.03 inches 2010
9 0.02 inches 1916
10 0.01 inches 1949
10 0.01 inches 2004
10 0.01 inches 1962
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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