San Jacinto August 21 Weather Records

Daily averages and all-time records for weather in San Jacinto, California for the date of August 21.
August 21 All-Time Records
1893–2024
Highest temperature 109 °F 1982
Lowest temperature 44 °F 1954
Lowest daily high 74 °F 1904
Highest daily low 72 °F 2020
Most precipitation 0.93 inches 2023
Most snow none -
August 21 Average Weather
1991–2020 1
Average high 98.3 °F
Average low 63.3 °F
Chance precipitation 2.3%
Chance snow 0%
San Jacinto August 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 84 63 0.93 n/a
2022 94 67 0.00 n/a
2021 81 64 0.00 n/a
2020 103 72 0.00 n/a
2019 102 63 0.00 n/a
2018 95 67 0.00 n/a
2017 93 59 0.00 n/a
2016 94 66 0.00 n/a
2015 89 63 0.00 n/a
2014 93 61 0.00 n/a
2013 106 65 0.00 n/a
2012 96 70 n/a n/a
2011 92 58 0.00 n/a
2010 103 65 0.00 0.0
2009 100 61 0.00 0.0
2008 n/a n/a 0.00 0.0
2007 104 64 0.00 0.0
2006 103 61 0.00 0.0
2005 102 56 0.00 0.0
2004 88 59 0.00 0.0
2003 n/a n/a 0.06 n/a
2002 86 60 0.00 0.0
2001 89 54 0.00 0.0
2000 92 55 0.00 0.0
1999 105 62 0.00 0.0
1998 102 64 0.00 0.0
1997 101 62 0.00 0.0
1996 102 57 0.00 0.0
1995 96 70 0.00 0.0
1994 94 59 0.00 0.0
1993 98 51 0.00 0.0
1992 n/a 70 0.00 0.0
1991 107 60 0.00 0.0
1990 93 50 0.00 0.0
1989 78 55 0.00 0.0
1988 94 n/a 0.00 0.0
1987 91 55 0.00 0.0
1986 100 69 0.00 0.0
1985 99 48 0.00 0.0
1984 96 66 0.00 0.0
1983 84 60 0.00 0.0
1982 109 71 0.00 0.0
1981 n/a n/a n/a n/a
1980 90 56 0.00 0.0
1979 88 55 0.00 0.0
1978 94 52 0.00 0.0
1977 98 65 0.00 0.0
1976 95 52 0.00 0.0
1975 90 53 0.00 0.0
1974 95 51 0.00 0.0
1973 101 63 0.00 0.0
1972 105 57 0.00 0.0
1971 98 56 0.00 0.0
1970 99 57 0.00 0.0
1969 109 59 0.00 0.0
1968 n/a 53 0.00 0.0
1967 102 61 0.00 0.0
1966 99 50 0.00 0.0
1965 94 55 0.00 0.0
1964 102 46 0.00 0.0
1963 98 50 0.00 0.0
1962 104 55 0.00 0.0
1961 103 68 0.40 0.0
1960 101 56 0.00 0.0
1959 92 45 0.00 0.0
1958 98 59 0.00 0.0
1957 95 66 0.00 0.0
1956 102 51 0.00 0.0
1955 100 56 0.00 0.0
1954 90 44 0.00 0.0
1953 97 53 0.00 0.0
1952 101 52 0.00 0.0
1951 97 55 0.00 0.0
1950 96 55 0.00 0.0
1949 106 50 0.00 0.0
1948 n/a n/a n/a n/a
1947 85 48 0.00 0.0
1946 n/a n/a n/a n/a
1945 95 62 0.00 0.0
1944 102 55 0.00 0.0
1943 88 51 0.00 0.0
1942 98 57 0.00 n/a
1941 94 49 0.00 n/a
1940 102 57 0.00 n/a
1939 102 56 0.00 n/a
1938 104 n/a 0.00 0.0
1937 101 60 0.00 n/a
1936 92 46 0.00 n/a
1935 107 63 0.00 0.0
1934 95 65 0.00 n/a
1933 96 54 0.00 n/a
1932 102 59 0.00 n/a
1931 103 61 0.00 n/a
1930 107 66 0.00 n/a
1929 106 61 0.00 n/a
1928 107 61 0.00 n/a
1927 98 60 0.00 n/a
1926 91 58 0.00 n/a
1925 98 48 n/a n/a
1924 88 51 n/a n/a
1923 96 54 n/a n/a
1922 92 60 n/a n/a
1921 95 65 n/a n/a
1920 95 50 n/a n/a
1919 105 65 n/a n/a
1918 90 50 n/a n/a
1917 98 53 n/a n/a
1916 94 49 0.00 n/a
1915 98 56 0.00 n/a
1914 91 52 0.00 n/a
1913 94 57 0.00 n/a
1912 96 53 0.00 n/a
1911 96 55 0.00 n/a
1910 101 65 n/a n/a
1909 99 63 0.00 n/a
1908 102 55 0.00 n/a
1907 102 62 0.00 n/a
1906 84 61 0.00 n/a
1905 94 58 0.00 n/a
1904 74 56 0.00 n/a
1903 102 66 0.00 n/a
1902 90 50 0.00 n/a
1901 94 56 0.00 n/a
1900 92 48 n/a n/a
1899 n/a n/a n/a n/a
1898 101 64 0.45 n/a
1897 n/a n/a n/a n/a
1896 94 58 0.00 n/a
1895 93 54 0.00 n/a
1894 100 60 0.00 n/a
1893 93 49 0.00 n/a
What's the all-time high for San Jacinto on 8/21?
For the date of Aug 21, the highest temperature ever reached in San Jacinto history is 109 °F which has happened 2 times, most recently in 1982.
Highest Temperatures in San Jacinto on August 21
Rank Temperature Year
1 109 °F 1969
1 109 °F 1982
3 107 °F 1928
3 107 °F 1930
3 107 °F 1935
3 107 °F 1991
7 106 °F 1929
7 106 °F 1949
7 106 °F 2013
10 105 °F 1919
10 105 °F 1999
10 105 °F 1972
What's the all-time low for San Jacinto on 8/21?
For the date of Aug 21, the lowest temperature ever reached in San Jacinto history is 44 °F which happened in 1954.
Lowest Temperatures in San Jacinto on August 21
Rank Temperature Year
1 44 °F 1954
2 45 °F 1959
3 46 °F 1964
3 46 °F 1936
5 48 °F 1925
5 48 °F 1985
5 48 °F 1900
5 48 °F 1947
9 49 °F 1941
9 49 °F 1916
9 49 °F 1893
Lowest High Temperatures in San Jacinto on August 21
Rank Temperature Year
1 74 °F 1904
2 78 °F 1989
3 81 °F 2021
4 84 °F 2023
4 84 °F 1906
4 84 °F 1983
7 85 °F 1947
8 86 °F 2002
9 88 °F 2004
9 88 °F 1924
9 88 °F 1943
9 88 °F 1979
What's the most it has ever rained in San Jacinto on 8/21?
For the date of Aug 21, the most precipitation ever recorded in San Jacinto history is 0.93 inches which happened in 2023.
All-Time Most Precipitation in San Jacinto on August 21
Rank Precipitation Year
1 0.93 inches 2023
2 0.45 inches 1898
3 0.40 inches 1961
4 0.06 inches 2003
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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