San Jacinto May 18 Weather Records

Daily averages and all-time records for weather in San Jacinto, California for the date of May 18.
May 18 All-Time Records
1893–2024
Highest temperature 104 °F 1986
Lowest temperature 38 °F 1955
Lowest daily high 61 °F 1949
Highest daily low 66 °F 2009
Most precipitation 0.17 inches 1938
Most snow none -
May 18 Average Weather
1991–2020 1
Average high 82.5 °F
Average low 52.6 °F
Chance precipitation 7.3%
Chance snow 0%
San Jacinto May 18 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 89 58 0.00 n/a
2022 89 53 0.00 n/a
2021 81 57 0.00 n/a
2020 75 57 0.00 n/a
2019 74 46 0.00 n/a
2018 75 55 0.00 n/a
2017 83 47 0.00 n/a
2016 86 55 0.00 n/a
2015 72 53 0.00 n/a
2014 85 58 0.00 n/a
2013 82 57 0.00 n/a
2012 81 56 0.00 n/a
2011 63 47 0.15 n/a
2010 70 52 0.00 0.0
2009 98 66 0.00 0.0
2008 103 61 0.00 0.0
2007 91 53 0.00 0.0
2006 n/a n/a n/a n/a
2005 87 49 0.00 0.0
2004 82 54 0.00 0.0
2003 81 50 0.00 0.0
2002 84 54 0.00 0.0
2001 86 54 0.00 0.0
2000 n/a n/a 0.00 0.0
1999 88 52 0.00 0.0
1998 n/a n/a 0.00 0.0
1997 87 58 0.00 0.0
1996 87 55 0.00 0.0
1995 82 51 0.00 0.0
1994 63 46 0.07 0.0
1993 82 55 0.00 0.0
1992 90 53 0.00 0.0
1991 72 41 0.00 0.0
1990 n/a n/a 0.00 0.0
1989 79 39 0.00 0.0
1988 83 52 0.00 0.0
1987 82 57 0.00 0.0
1986 104 50 0.00 0.0
1985 85 51 0.00 0.0
1984 93 43 0.00 0.0
1983 92 48 0.00 0.0
1982 88 51 0.00 0.0
1981 88 48 0.00 0.0
1980 94 49 0.00 0.0
1979 n/a 51 0.00 0.0
1978 94 46 0.00 0.0
1977 78 39 0.00 0.0
1976 82 51 0.00 0.0
1975 79 50 0.00 0.0
1974 70 44 0.00 0.0
1973 94 51 0.00 0.0
1972 73 50 0.00 0.0
1971 93 48 0.00 0.0
1970 94 52 0.00 0.0
1969 94 55 0.00 0.0
1968 97 49 0.00 0.0
1967 93 49 0.00 0.0
1966 97 43 0.00 0.0
1965 89 51 0.00 0.0
1964 93 44 0.00 0.0
1963 80 51 0.00 0.0
1962 84 42 0.00 0.0
1961 81 40 0.00 0.0
1960 77 55 0.00 0.0
1959 75 52 0.00 0.0
1958 92 48 0.00 0.0
1957 71 53 0.00 0.0
1956 96 54 0.00 0.0
1955 90 38 0.00 0.0
1954 87 49 0.00 0.0
1953 82 42 0.00 0.0
1952 93 43 0.00 0.0
1951 90 47 0.00 0.0
1950 76 50 0.00 0.0
1949 61 49 0.01 0.0
1948 77 50 0.00 0.0
1947 99 46 0.00 0.0
1946 71 53 0.00 0.0
1945 75 40 0.00 0.0
1944 71 50 0.00 0.0
1943 76 41 0.00 n/a
1942 90 44 0.00 n/a
1941 74 53 0.00 n/a
1940 78 48 0.00 n/a
1939 81 47 0.00 n/a
1938 67 50 0.17 0.0
1937 85 54 0.00 n/a
1936 86 47 0.00 0.0
1935 83 51 0.00 0.0
1934 87 44 0.00 n/a
1933 79 41 0.00 n/a
1932 84 48 0.00 n/a
1931 93 53 0.00 n/a
1930 75 46 0.00 n/a
1929 90 43 0.00 n/a
1928 88 51 0.00 n/a
1927 88 45 0.00 n/a
1926 89 47 0.00 n/a
1925 87 44 n/a n/a
1924 86 53 0.00 0.0
1923 84 51 n/a n/a
1922 79 49 0.03 n/a
1921 61 48 n/a n/a
1920 101 54 n/a n/a
1919 87 52 0.00 n/a
1918 76 52 n/a n/a
1917 69 50 0.03 0.0
1916 86 49 0.00 n/a
1915 65 50 0.00 n/a
1914 80 51 n/a n/a
1913 71 47 0.00 n/a
1912 78 45 0.00 n/a
1911 80 45 0.00 0.0
1910 87 47 0.00 0.0
1909 76 44 0.00 n/a
1908 92 42 0.00 n/a
1907 89 45 0.00 n/a
1906 78 53 0.00 n/a
1905 66 56 0.00 n/a
1904 91 57 n/a n/a
1903 71 39 0.00 n/a
1902 71 47 0.00 n/a
1901 88 54 0.00 n/a
1900 91 50 0.00 n/a
1899 n/a n/a n/a n/a
1898 n/a n/a n/a n/a
1897 87 47 0.00 n/a
1896 75 41 0.00 n/a
1895 80 47 0.00 n/a
1894 87 39 0.00 n/a
1893 83 43 0.00 n/a
What's the all-time high for San Jacinto on 5/18?
For the date of May 18, the highest temperature ever reached in San Jacinto history is 104 °F which happened in 1986.
Highest Temperatures in San Jacinto on May 18
Rank Temperature Year
1 104 °F 1986
2 103 °F 2008
3 101 °F 1920
4 99 °F 1947
5 98 °F 2009
6 97 °F 1966
6 97 °F 1968
8 96 °F 1956
9 94 °F 1980
9 94 °F 1969
9 94 °F 1973
9 94 °F 1970
9 94 °F 1978
What's the all-time low for San Jacinto on 5/18?
For the date of May 18, the lowest temperature ever reached in San Jacinto history is 38 °F which happened in 1955.
Lowest Temperatures in San Jacinto on May 18
Rank Temperature Year
1 38 °F 1955
2 39 °F 1989
2 39 °F 1903
2 39 °F 1894
2 39 °F 1977
6 40 °F 1945
6 40 °F 1961
8 41 °F 1933
8 41 °F 1991
8 41 °F 1896
8 41 °F 1943
Lowest High Temperatures in San Jacinto on May 18
Rank Temperature Year
1 61 °F 1921
1 61 °F 1949
3 63 °F 1994
3 63 °F 2011
5 65 °F 1915
6 66 °F 1905
7 67 °F 1938
8 69 °F 1917
9 70 °F 1974
9 70 °F 2010
What's the most it has ever rained in San Jacinto on 5/18?
For the date of May 18, the most precipitation ever recorded in San Jacinto history is 0.17 inches which happened in 1938.
All-Time Most Precipitation in San Jacinto on May 18
Rank Precipitation Year
1 0.17 inches 1938
2 0.15 inches 2011
3 0.07 inches 1994
4 0.03 inches 1917
4 0.03 inches 1922
6 0.01 inches 1949
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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