San Jacinto September 30 Weather Records

Daily averages and all-time records for weather in San Jacinto, California for the date of September 30.
September 30 All-Time Records
1893–2024
Highest temperature 110 °F 1980
Lowest temperature 36 °F 1954
Lowest daily high 66 °F 1919
Highest daily low 68 °F 1946
Most precipitation 0.90 inches 1921
Most snow none -
September 30 Average Weather
1991–2020 1
Average high 89.3 °F
Average low 55.8 °F
Chance precipitation 3.3%
Chance snow 0%
San Jacinto September 30 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 69 60 0.06 n/a
2022 90 62 0.00 n/a
2021 90 52 0.00 n/a
2020 103 65 0.00 n/a
2019 76 49 0.00 n/a
2018 91 62 0.00 n/a
2017 87 57 0.00 n/a
2016 92 65 0.00 n/a
2015 96 59 0.00 n/a
2014 91 54 0.00 n/a
2013 92 49 0.00 n/a
2012 103 61 0.00 n/a
2011 96 59 0.00 n/a
2010 84 67 0.02 0.0
2009 85 55 0.00 0.0
2008 101 67 0.00 0.0
2007 89 49 0.00 0.0
2006 99 56 0.00 0.0
2005 n/a n/a 0.00 0.0
2004 n/a n/a 0.00 0.0
2003 95 61 0.00 0.0
2002 73 56 0.00 0.0
2001 103 53 0.00 0.0
2000 84 52 0.00 0.0
1999 102 57 0.00 0.0
1998 n/a n/a 0.00 0.0
1997 97 62 0.00 0.0
1996 91 53 0.00 0.0
1995 91 49 0.00 0.0
1994 86 66 0.00 0.0
1993 n/a n/a 0.00 0.0
1992 n/a n/a 0.00 0.0
1991 98 58 0.00 0.0
1990 94 52 0.00 0.0
1989 90 44 0.00 0.0
1988 n/a n/a 0.00 0.0
1987 104 55 0.00 0.0
1986 88 46 0.00 0.0
1985 85 55 0.00 0.0
1984 88 56 0.00 0.0
1983 n/a n/a 0.25 0.0
1982 76 42 0.00 0.0
1981 n/a 57 0.00 0.0
1980 110 57 0.00 0.0
1979 n/a n/a n/a n/a
1978 n/a n/a n/a n/a
1977 86 60 0.00 0.0
1976 81 62 0.00 0.0
1975 89 50 0.00 0.0
1974 100 56 0.00 0.0
1973 93 47 0.00 0.0
1972 104 55 0.00 0.0
1971 77 44 0.00 0.0
1970 96 55 0.00 0.0
1969 99 57 0.00 0.0
1968 76 48 0.00 0.0
1967 84 62 0.00 0.0
1966 84 59 0.00 0.0
1965 95 46 0.00 0.0
1964 98 41 0.00 0.0
1963 100 56 0.00 0.0
1962 100 46 0.00 0.0
1961 93 46 0.00 0.0
1960 82 47 0.00 0.0
1959 73 56 0.00 0.0
1958 97 53 0.00 0.0
1957 92 52 0.00 0.0
1956 94 52 0.00 0.0
1955 90 40 0.00 0.0
1954 85 36 0.00 0.0
1953 91 43 0.00 0.0
1952 101 47 0.00 0.0
1951 91 42 0.00 0.0
1950 79 58 0.00 0.0
1949 98 48 0.00 0.0
1948 n/a n/a n/a n/a
1947 86 43 0.00 n/a
1946 87 68 0.88 0.0
1945 96 45 0.00 0.0
1944 71 53 0.00 0.0
1943 100 57 0.00 0.0
1942 91 45 0.00 n/a
1941 94 45 0.00 n/a
1940 87 39 0.00 n/a
1939 86 51 0.00 n/a
1938 96 n/a 0.00 n/a
1937 82 56 0.00 n/a
1936 87 50 0.00 n/a
1935 94 52 0.00 0.0
1934 100 49 0.00 n/a
1933 89 55 0.00 n/a
1932 85 46 0.00 n/a
1931 99 51 0.00 n/a
1930 67 45 0.00 n/a
1929 94 46 0.00 n/a
1928 91 51 0.00 n/a
1927 88 50 0.00 n/a
1926 88 44 0.00 n/a
1925 94 42 0.00 n/a
1924 97 54 n/a n/a
1923 91 51 n/a n/a
1922 84 53 n/a n/a
1921 80 64 0.90 n/a
1920 96 51 n/a n/a
1919 66 54 0.10 n/a
1918 95 63 n/a n/a
1917 92 54 n/a n/a
1916 70 46 0.54 n/a
1915 95 48 0.00 n/a
1914 83 54 0.00 n/a
1913 90 45 0.00 n/a
1912 91 57 0.00 n/a
1911 87 59 0.28 0.0
1910 88 57 0.00 n/a
1909 n/a 46 0.00 n/a
1908 100 61 0.00 n/a
1907 85 41 0.00 n/a
1906 104 58 0.00 n/a
1905 82 42 n/a n/a
1904 74 43 0.00 n/a
1903 68 58 0.00 n/a
1902 88 48 0.00 n/a
1901 70 48 0.00 n/a
1900 80 50 0.00 n/a
1899 97 52 0.00 n/a
1898 75 57 n/a n/a
1897 75 46 0.00 n/a
1896 83 43 0.00 n/a
1895 94 55 n/a n/a
1894 68 48 0.04 n/a
1893 75 56 0.00 n/a
What's the all-time high for San Jacinto on 9/30?
For the date of Sep 30, the highest temperature ever reached in San Jacinto history is 110 °F which happened in 1980.
Highest Temperatures in San Jacinto on September 30
Rank Temperature Year
1 110 °F 1980
2 104 °F 1972
2 104 °F 1987
2 104 °F 1906
5 103 °F 2012
5 103 °F 2001
5 103 °F 2020
8 102 °F 1999
9 101 °F 1952
9 101 °F 2008
What's the all-time low for San Jacinto on 9/30?
For the date of Sep 30, the lowest temperature ever reached in San Jacinto history is 36 °F which happened in 1954.
Lowest Temperatures in San Jacinto on September 30
Rank Temperature Year
1 36 °F 1954
2 39 °F 1940
3 40 °F 1955
4 41 °F 1964
4 41 °F 1907
6 42 °F 1905
6 42 °F 1925
6 42 °F 1982
6 42 °F 1951
10 43 °F 1896
10 43 °F 1904
10 43 °F 1947
10 43 °F 1953
Lowest High Temperatures in San Jacinto on September 30
Rank Temperature Year
1 66 °F 1919
2 67 °F 1930
3 68 °F 1894
3 68 °F 1903
5 69 °F 2023
6 70 °F 1916
6 70 °F 1901
8 71 °F 1944
9 73 °F 2002
9 73 °F 1959
What's the most it has ever rained in San Jacinto on 9/30?
For the date of Sep 30, the most precipitation ever recorded in San Jacinto history is 0.90 inches which happened in 1921.
All-Time Most Precipitation in San Jacinto on September 30
Rank Precipitation Year
1 0.90 inches 1921
2 0.88 inches 1946
3 0.54 inches 1916
4 0.28 inches 1911
5 0.25 inches 1983
6 0.10 inches 1919
7 0.06 inches 2023
8 0.04 inches 1894
9 0.02 inches 2010
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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