Modesto September 18 Weather Records

Daily averages and all-time records for weather in Modesto, California for the date of September 18.
September 18 All-Time Records
1906–2024
Highest temperature 102 °F 1984
Lowest temperature 44 °F 1965
Lowest daily high 65 °F 1989
Highest daily low 69 °F 1984
Most precipitation 1.86 inches 1959
September 18 Average Weather
1991–2020 1
Average high 88.3 °F
Average low 58.9 °F
Chance precipitation 1.5%
Modesto September 18 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 82 60 0.00 n/a
2022 75 59 0.06 n/a
2021 80 53 0.00 n/a
2020 85 64 0.00 n/a
2019 78 57 0.00 n/a
2018 82 55 0.00 n/a
2017 87 58 0.00 n/a
2016 100 59 0.00 n/a
2015 88 58 0.00 n/a
2014 86 65 0.00 n/a
2013 86 60 0.00 n/a
2012 86 55 0.00 n/a
2011 91 57 0.00 n/a
2010 84 61 0.00 n/a
2009 98 61 0.00 n/a
2008 83 54 0.00 n/a
2007 88 56 0.00 n/a
2006 92 54 0.00 n/a
2005 84 53 0.00 n/a
2004 70 52 0.00 n/a
2003 89 53 0.00 n/a
2002 89 61 0.00 n/a
2001 89 59 0.00 n/a
2000 99 57 0.00 n/a
1999 82 54 0.00 0.0
1998 80 57 0.00 0.0
1997 86 62 0.00 0.0
1996 84 57 0.00 0.0
1995 94 63 0.00 0.0
1994 90 57 0.00 0.0
1993 81 54 0.00 0.0
1992 91 57 0.00 0.0
1991 96 65 0.00 0.0
1990 85 58 0.00 0.0
1989 65 n/a 0.12 0.0
1988 87 59 0.00 0.0
1987 90 53 0.00 0.0
1986 74 48 0.00 0.0
1985 79 53 0.00 0.0
1984 102 69 0.00 0.0
1983 92 58 0.00 0.0
1982 72 59 0.02 0.0
1981 90 59 0.00 0.0
1980 77 63 0.00 0.0
1979 90 58 0.00 0.0
1978 79 49 0.00 0.0
1977 81 55 0.00 0.0
1976 87 55 0.00 0.0
1975 88 63 0.00 0.0
1974 94 55 0.00 0.0
1973 86 56 0.00 0.0
1972 79 53 0.00 0.0
1971 90 58 0.00 0.0
1970 92 54 0.00 0.0
1969 84 58 0.00 0.0
1968 94 57 0.00 0.0
1967 82 61 0.00 0.0
1966 77 55 0.00 0.0
1965 78 44 0.00 0.0
1964 84 52 0.00 0.0
1963 73 59 0.00 0.0
1962 84 53 0.00 0.0
1961 80 48 0.00 0.0
1960 92 52 0.00 0.0
1959 67 59 1.86 0.0
1958 96 56 0.00 0.0
1957 81 55 0.00 0.0
1956 89 64 0.00 0.0
1955 75 49 0.00 0.0
1954 82 47 0.00 0.0
1953 86 59 0.00 0.0
1952 90 54 0.00 0.0
1951 88 64 0.00 0.0
1950 74 56 0.00 0.0
1949 93 50 0.00 0.0
1948 77 54 0.00 0.0
1947 75 44 0.00 n/a
1946 83 50 0.00 n/a
1945 87 56 0.00 n/a
1944 81 47 0.00 n/a
1943 88 53 0.00 n/a
1942 85 58 0.00 n/a
1941 78 53 0.00 n/a
1940 79 55 0.00 n/a
1939 101 58 0.00 n/a
1938 91 61 0.00 n/a
1937 79 56 0.00 n/a
1936 95 55 0.00 n/a
1935 97 59 0.00 n/a
1934 93 57 0.00 n/a
1933 80 51 0.00 n/a
1932 83 54 0.00 n/a
1931 79 54 0.00 n/a
1930 84 52 0.00 n/a
1929 90 57 0.00 n/a
1928 94 54 0.00 n/a
1927 83 51 0.00 0.0
1926 n/a n/a n/a n/a
1925 n/a n/a n/a n/a
1924 n/a n/a n/a n/a
1923 n/a n/a n/a n/a
1922 n/a n/a n/a n/a
1921 n/a n/a n/a n/a
1920 n/a n/a n/a n/a
1919 n/a n/a n/a n/a
1918 n/a n/a n/a n/a
1917 n/a n/a n/a n/a
1916 n/a n/a n/a n/a
1915 n/a n/a 0.00 n/a
1914 n/a n/a 0.00 n/a
1913 n/a n/a 0.00 n/a
1912 n/a n/a 0.00 n/a
1911 n/a n/a 0.00 n/a
1910 n/a n/a 0.00 n/a
1909 n/a n/a 0.00 n/a
1908 n/a n/a 0.00 n/a
1907 n/a n/a 0.00 n/a
1906 n/a n/a 0.00 n/a
What's the all-time high for Modesto on 9/18?
For the date of Sep 18, the highest temperature ever reached in Modesto history is 102 °F which happened in 1984.
Highest Temperatures in Modesto on September 18
Rank Temperature Year
1 102 °F 1984
2 101 °F 1939
3 100 °F 2016
4 99 °F 2000
5 98 °F 2009
6 97 °F 1935
7 96 °F 1958
7 96 °F 1991
9 95 °F 1936
10 94 °F 1995
10 94 °F 1968
10 94 °F 1974
10 94 °F 1928
What's the all-time low for Modesto on 9/18?
For the date of Sep 18, the lowest temperature ever reached in Modesto history is 44 °F which has happened 2 times, most recently in 1965.
Lowest Temperatures in Modesto on September 18
Rank Temperature Year
1 44 °F 1965
1 44 °F 1947
3 47 °F 1944
3 47 °F 1954
5 48 °F 1986
5 48 °F 1961
7 49 °F 1978
7 49 °F 1955
9 50 °F 1946
9 50 °F 1949
Lowest High Temperatures in Modesto on September 18
Rank Temperature Year
1 65 °F 1989
2 67 °F 1959
3 70 °F 2004
4 72 °F 1982
5 73 °F 1963
6 74 °F 1986
6 74 °F 1950
8 75 °F 2022
8 75 °F 1955
8 75 °F 1947
What's the most it has ever rained in Modesto on 9/18?
For the date of Sep 18, the most precipitation ever recorded in Modesto history is 1.86 inches which happened in 1959.
All-Time Most Precipitation in Modesto on September 18
Rank Precipitation Year
1 1.86 inches 1959
2 0.12 inches 1989
3 0.06 inches 2022
4 0.02 inches 1982
Weather Station Details
Years Station Coordinates
1906–2024 Modesto City-County Airport location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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