Riverside September 12 Weather Records

Daily averages and all-time records for weather in Riverside, California for the date of September 12.
September 12 All-Time Records
1893–2024
Highest temperature 111 °F 1971
Lowest temperature 40 °F 1916
Lowest daily high 77 °F 2008
Highest daily low 73 °F 2015
Most precipitation 0.16 inches 1939
September 12 Average Weather
1991–2020 1
Average high 92.8 °F
Average low 62.1 °F
Chance precipitation 1.8%
Riverside September 12 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 91 64 0.00 n/a
2022 89 72 0.00 n/a
2021 100 67 0.00 n/a
2020 95 60 0.00 0.0
2019 100 60 0.00 0.0
2018 90 62 0.00 0.0
2017 91 68 0.00 0.0
2016 81 61 0.00 0.0
2015 94 73 0.00 0.0
2014 102 68 0.00 0.0
2013 95 62 0.00 0.0
2012 93 70 0.00 0.0
2011 92 58 0.00 0.0
2010 94 56 0.00 n/a
2009 90 65 0.00 n/a
2008 77 61 0.00 n/a
2007 n/a n/a n/a n/a
2006 94 61 0.00 n/a
2005 80 52 0.00 n/a
2004 95 66 0.00 n/a
2003 92 58 0.00 n/a
2002 93 58 0.00 n/a
2001 86 56 0.00 n/a
2000 108 61 0.00 n/a
1999 93 58 0.00 n/a
1998 93 58 0.00 0.0
1997 89 64 0.00 0.0
1996 92 57 0.00 0.0
1995 102 62 0.00 0.0
1994 81 59 0.00 0.0
1993 90 64 0.00 0.0
1992 n/a n/a n/a n/a
1991 82 57 0.00 0.0
1990 106 63 0.00 0.0
1989 85 52 0.00 0.0
1988 82 60 0.00 0.0
1987 80 63 0.00 0.0
1986 82 55 0.00 0.0
1985 92 49 0.00 0.0
1984 86 66 0.00 0.0
1983 n/a 68 0.00 0.0
1982 79 60 0.00 0.0
1981 95 58 0.00 0.0
1980 85 59 0.00 0.0
1979 102 63 0.00 0.0
1978 79 58 0.00 0.0
1977 86 61 0.00 0.0
1976 78 62 0.00 0.0
1975 80 55 0.00 0.0
1974 88 62 0.00 0.0
1973 83 55 0.00 0.0
1972 84 49 0.00 0.0
1971 111 67 0.00 0.0
1970 89 61 0.00 0.0
1969 92 58 0.00 0.0
1968 93 57 0.00 0.0
1967 93 66 0.00 0.0
1966 84 58 0.00 0.0
1965 89 50 0.00 0.0
1964 94 60 0.00 0.0
1963 104 65 0.00 0.0
1962 85 48 0.00 0.0
1961 n/a 56 0.00 0.0
1960 106 70 0.00 0.0
1959 93 71 0.00 0.0
1958 86 53 0.00 0.0
1957 86 58 0.00 0.0
1956 n/a 55 0.00 0.0
1955 106 60 0.00 0.0
1954 88 51 0.00 0.0
1953 106 59 0.00 0.0
1952 78 44 0.00 0.0
1951 89 55 0.00 0.0
1950 82 46 0.00 0.0
1949 88 45 0.00 0.0
1948 101 56 0.00 0.0
1947 100 53 0.00 0.0
1946 103 60 0.00 0.0
1945 100 60 0.00 0.0
1944 90 60 0.00 0.0
1943 103 58 0.00 0.0
1942 101 50 0.00 0.0
1941 90 54 0.00 0.0
1940 92 57 0.00 0.0
1939 89 65 0.16 0.0
1938 96 53 0.00 0.0
1937 106 65 0.00 0.0
1936 90 58 0.00 0.0
1935 100 52 0.00 0.0
1934 86 48 0.00 0.0
1933 78 53 0.00 0.0
1932 91 54 0.00 0.0
1931 92 48 0.00 0.0
1930 84 47 0.00 0.0
1929 99 56 0.00 0.0
1928 82 47 0.00 0.0
1927 81 49 0.00 n/a
1926 94 50 0.00 n/a
1925 81 55 0.00 n/a
1924 101 49 0.00 n/a
1923 81 61 0.00 n/a
1922 101 58 0.00 n/a
1921 81 55 n/a n/a
1920 87 53 0.00 n/a
1919 102 47 n/a n/a
1918 98 63 0.00 n/a
1917 95 51 n/a n/a
1916 99 40 0.00 n/a
1915 83 46 0.00 n/a
1914 84 46 0.00 n/a
1913 107 58 n/a n/a
1912 102 48 0.00 n/a
1911 98 48 0.00 0.0
1910 93 56 0.00 n/a
1909 91 48 0.00 n/a
1908 104 61 0.00 n/a
1907 91 56 0.00 n/a
1906 78 53 0.00 n/a
1905 86 47 0.00 n/a
1904 90 60 0.00 n/a
1903 80 59 0.00 n/a
1902 89 56 0.00 n/a
1901 92 46 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 98 59 n/a n/a
1894 82 54 n/a n/a
1893 80 51 n/a n/a
What's the all-time high for Riverside on 9/12?
For the date of Sep 12, the highest temperature ever reached in Riverside history is 111 °F which happened in 1971.
Highest Temperatures in Riverside on September 12
Rank Temperature Year
1 111 °F 1971
2 108 °F 2000
3 107 °F 1913
4 106 °F 1953
4 106 °F 1955
4 106 °F 1990
4 106 °F 1937
4 106 °F 1960
9 104 °F 1908
9 104 °F 1963
What's the all-time low for Riverside on 9/12?
For the date of Sep 12, the lowest temperature ever reached in Riverside history is 40 °F which happened in 1916.
Lowest Temperatures in Riverside on September 12
Rank Temperature Year
1 40 °F 1916
2 44 °F 1952
3 45 °F 1949
4 46 °F 1914
4 46 °F 1901
4 46 °F 1915
4 46 °F 1950
8 47 °F 1930
8 47 °F 1928
8 47 °F 1905
8 47 °F 1919
Lowest High Temperatures in Riverside on September 12
Rank Temperature Year
1 77 °F 2008
2 78 °F 1906
2 78 °F 1952
2 78 °F 1933
2 78 °F 1976
6 79 °F 1982
6 79 °F 1978
8 80 °F 2005
8 80 °F 1893
8 80 °F 1975
8 80 °F 1987
8 80 °F 1903
What's the most it has ever rained in Riverside on 9/12?
For the date of Sep 12, the most precipitation ever recorded in Riverside history is 0.16 inches which happened in 1939.
All-Time Most Precipitation in Riverside on September 12
Rank Precipitation Year
1 0.16 inches 1939
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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