San Jacinto September 18 Weather Records

Daily averages and all-time records for weather in San Jacinto, California for the date of September 18.
September 18 All-Time Records
1893–2024
Highest temperature 109 °F 1928
Lowest temperature 39 °F 1895
Lowest daily high 70 °F 1963
Highest daily low 66 °F 2014
Most precipitation 1.20 inches 1929
Most snow none -
September 18 Average Weather
1991–2020 1
Average high 92.9 °F
Average low 59.3 °F
Chance precipitation 3.1%
Chance snow 0%
San Jacinto September 18 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 79 65 0.00 n/a
2022 83 62 0.00 n/a
2021 89 60 0.00 n/a
2020 103 64 0.00 n/a
2019 88 57 0.00 n/a
2018 95 56 0.00 n/a
2017 85 57 0.00 n/a
2016 103 59 0.00 n/a
2015 94 59 0.00 n/a
2014 89 66 0.00 n/a
2013 88 53 0.00 n/a
2012 101 62 0.00 n/a
2011 98 55 0.00 n/a
2010 95 53 0.00 0.0
2009 103 63 0.00 0.0
2008 96 65 0.00 0.0
2007 84 53 0.00 0.0
2006 n/a n/a 0.00 0.0
2005 86 50 0.00 0.0
2004 87 53 0.00 0.0
2003 n/a n/a 0.00 0.0
2002 87 52 0.00 0.0
2001 93 54 0.00 0.0
2000 105 65 0.00 0.0
1999 n/a 52 0.00 0.0
1998 n/a n/a 0.00 0.0
1997 92 60 0.00 0.0
1996 88 61 0.00 0.0
1995 n/a 54 0.00 0.0
1994 91 59 0.00 0.0
1993 82 53 0.00 0.0
1992 n/a n/a 0.00 0.0
1991 98 56 0.00 0.0
1990 83 56 0.00 0.0
1989 74 48 0.00 0.0
1988 85 49 0.00 0.0
1987 95 49 0.00 0.0
1986 85 52 0.00 0.0
1985 n/a 50 0.00 0.0
1984 104 65 0.00 0.0
1983 98 61 0.00 0.0
1982 85 48 0.08 0.0
1981 n/a n/a 0.00 0.0
1980 87 45 0.00 0.0
1979 n/a n/a n/a n/a
1978 n/a n/a n/a n/a
1977 89 46 0.00 0.0
1976 80 49 0.00 0.0
1975 95 62 0.00 0.0
1974 99 53 0.00 0.0
1973 90 41 0.00 0.0
1972 84 54 0.00 0.0
1971 96 61 0.00 0.0
1970 99 51 0.00 0.0
1969 95 55 0.00 0.0
1968 96 51 0.00 0.0
1967 77 57 0.00 0.0
1966 95 61 0.00 0.0
1965 72 55 0.17 0.0
1964 77 56 0.00 0.0
1963 70 62 0.99 0.0
1962 108 57 0.00 0.0
1961 84 52 0.00 0.0
1960 99 46 0.00 0.0
1959 80 55 0.00 0.0
1958 101 51 0.00 0.0
1957 81 47 0.00 0.0
1956 100 56 0.00 0.0
1955 77 54 0.00 0.0
1954 98 42 0.00 0.0
1953 87 46 0.00 0.0
1952 104 52 0.00 0.0
1951 106 60 0.00 0.0
1950 81 59 0.00 0.0
1949 100 52 0.00 0.0
1948 n/a n/a n/a n/a
1947 73 60 0.00 n/a
1946 94 55 0.00 0.0
1945 70 54 0.00 0.0
1944 74 59 0.00 0.0
1943 101 55 0.00 0.0
1942 81 56 0.00 n/a
1941 93 55 0.00 n/a
1940 82 45 0.00 n/a
1939 107 63 0.00 n/a
1938 95 n/a 0.00 n/a
1937 105 58 0.00 n/a
1936 95 50 0.00 n/a
1935 100 56 0.00 0.0
1934 101 63 0.00 n/a
1933 98 48 0.00 n/a
1932 86 53 0.00 n/a
1931 90 45 0.00 n/a
1930 90 49 0.00 n/a
1929 83 64 1.20 n/a
1928 109 57 0.00 n/a
1927 95 51 0.00 n/a
1926 92 46 0.00 n/a
1925 82 61 0.03 n/a
1924 83 53 n/a n/a
1923 88 57 n/a n/a
1922 104 65 n/a n/a
1921 79 48 n/a n/a
1920 93 55 n/a n/a
1919 90 50 0.00 n/a
1918 87 54 n/a n/a
1917 105 63 n/a n/a
1916 94 48 n/a n/a
1915 95 52 0.00 n/a
1914 93 64 0.00 n/a
1913 103 64 0.00 n/a
1912 103 60 0.00 n/a
1911 91 47 0.00 0.0
1910 101 54 0.00 n/a
1909 97 55 0.00 n/a
1908 84 44 0.00 n/a
1907 88 40 0.00 n/a
1906 98 54 0.00 n/a
1905 94 46 n/a n/a
1904 76 49 0.00 n/a
1903 81 51 0.00 n/a
1902 88 50 0.00 n/a
1901 95 53 0.00 n/a
1900 92 44 0.00 n/a
1899 103 56 0.00 n/a
1898 103 57 n/a n/a
1897 94 59 0.00 n/a
1896 75 52 0.00 n/a
1895 82 39 n/a n/a
1894 97 53 0.00 n/a
1893 83 41 0.00 n/a
What's the all-time high for San Jacinto on 9/18?
For the date of Sep 18, the highest temperature ever reached in San Jacinto history is 109 °F which happened in 1928.
Highest Temperatures in San Jacinto on September 18
Rank Temperature Year
1 109 °F 1928
2 108 °F 1962
3 107 °F 1939
4 106 °F 1951
5 105 °F 2000
5 105 °F 1937
5 105 °F 1917
8 104 °F 1984
8 104 °F 1952
8 104 °F 1922
What's the all-time low for San Jacinto on 9/18?
For the date of Sep 18, the lowest temperature ever reached in San Jacinto history is 39 °F which happened in 1895.
Lowest Temperatures in San Jacinto on September 18
Rank Temperature Year
1 39 °F 1895
2 40 °F 1907
3 41 °F 1973
3 41 °F 1893
5 42 °F 1954
6 44 °F 1900
6 44 °F 1908
8 45 °F 1940
8 45 °F 1980
8 45 °F 1931
Lowest High Temperatures in San Jacinto on September 18
Rank Temperature Year
1 70 °F 1945
1 70 °F 1963
3 72 °F 1965
4 73 °F 1947
5 74 °F 1989
5 74 °F 1944
7 75 °F 1896
8 76 °F 1904
9 77 °F 1964
9 77 °F 1967
9 77 °F 1955
What's the most it has ever rained in San Jacinto on 9/18?
For the date of Sep 18, the most precipitation ever recorded in San Jacinto history is 1.20 inches which happened in 1929.
All-Time Most Precipitation in San Jacinto on September 18
Rank Precipitation Year
1 1.20 inches 1929
2 0.99 inches 1963
3 0.17 inches 1965
4 0.08 inches 1982
5 0.03 inches 1925
Weather Station Details
Years Station Coordinates
1978–2024 San Jacinto location
1893–1978 San Jacinto location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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