Merced September 18 Weather Records

Daily averages and all-time records for weather in Merced, California for the date of September 18.
September 18 All-Time Records
1899–2024
Highest temperature 108 °F 1913
Lowest temperature 35 °F 1978
Lowest daily high 71 °F 2004
Highest daily low 72 °F 1984
Most precipitation 0.68 inches 1959
September 18 Average Weather
1991–2020 1
Average high 89.8 °F
Average low 56.1 °F
Chance precipitation 2.1%
Merced September 18 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 84 60 0.00 0.0
2022 80 59 0.09 0.0
2021 84 54 0.00 0.0
2020 85 66 0.00 0.0
2019 83 53 0.00 0.0
2018 85 54 0.00 0.0
2017 86 53 0.00 0.0
2016 98 55 0.00 0.0
2015 87 51 0.00 0.0
2014 88 65 0.00 0.0
2013 86 59 0.00 0.0
2012 89 58 0.00 0.0
2011 93 56 0.00 n/a
2010 87 58 0.00 n/a
2009 99 59 0.00 n/a
2008 85 53 0.00 n/a
2007 87 51 0.00 n/a
2006 91 54 0.00 n/a
2005 84 48 0.00 n/a
2004 71 55 0.00 n/a
2003 91 51 0.00 n/a
2002 88 55 0.00 n/a
2001 n/a n/a n/a n/a
2000 99 58 0.00 n/a
1999 88 56 0.00 n/a
1998 82 57 0.00 n/a
1997 85 60 0.00 0.0
1996 85 50 0.00 0.0
1995 93 59 0.00 0.0
1994 90 54 0.00 0.0
1993 81 49 0.00 0.0
1992 91 53 0.00 0.0
1991 99 58 0.00 0.0
1990 88 55 0.00 0.0
1989 76 55 0.09 0.0
1988 89 48 0.00 0.0
1987 91 52 0.00 0.0
1986 76 46 0.00 0.0
1985 84 52 0.00 0.0
1984 101 72 0.00 0.0
1983 96 55 0.00 0.0
1982 75 58 0.10 0.0
1981 91 58 0.00 0.0
1980 86 64 0.00 0.0
1979 100 52 0.00 0.0
1978 75 35 0.00 0.0
1977 82 46 0.00 0.0
1976 85 54 0.00 0.0
1975 92 58 0.00 0.0
1974 98 57 0.00 0.0
1973 87 52 0.00 0.0
1972 88 53 0.00 0.0
1971 88 56 0.00 0.0
1970 96 56 0.00 0.0
1969 86 56 0.00 0.0
1968 98 58 0.00 0.0
1967 84 62 0.00 0.0
1966 94 63 0.07 0.0
1965 79 46 0.00 0.0
1964 85 53 0.00 0.0
1963 83 57 0.06 0.0
1962 94 53 0.00 0.0
1961 82 49 0.00 0.0
1960 93 53 0.00 0.0
1959 77 62 0.68 0.0
1958 93 54 0.00 0.0
1957 82 50 0.00 0.0
1956 94 64 0.00 0.0
1955 77 52 0.00 0.0
1954 84 46 0.00 0.0
1953 88 60 0.00 0.0
1952 95 52 0.00 0.0
1951 92 60 0.00 0.0
1950 77 55 0.01 0.0
1949 89 52 0.00 0.0
1948 83 52 0.00 n/a
1947 75 43 0.00 0.0
1946 89 44 n/a 0.0
1945 90 53 0.00 0.0
1944 83 45 0.00 0.0
1943 90 51 0.00 0.0
1942 88 51 0.00 n/a
1941 85 52 0.00 n/a
1940 85 57 0.00 n/a
1939 97 53 0.00 n/a
1938 94 62 0.00 n/a
1937 100 57 0.00 n/a
1936 94 52 0.00 n/a
1935 98 60 0.00 n/a
1934 98 60 0.00 n/a
1933 79 51 0.00 n/a
1932 89 53 0.00 n/a
1931 85 54 0.00 n/a
1930 90 54 0.00 n/a
1929 97 n/a 0.00 n/a
1928 97 56 0.00 n/a
1927 89 54 0.00 0.0
1926 80 50 0.00 n/a
1925 77 55 0.00 0.0
1924 88 49 n/a n/a
1923 98 50 n/a n/a
1922 100 55 n/a n/a
1921 76 52 0.04 n/a
1920 84 57 n/a n/a
1919 92 51 n/a n/a
1918 86 63 n/a n/a
1917 97 59 n/a n/a
1916 88 49 n/a n/a
1915 93 58 n/a n/a
1914 90 61 0.00 n/a
1913 108 65 0.00 n/a
1912 96 66 0.00 n/a
1911 78 58 0.00 n/a
1910 72 61 0.00 n/a
1909 98 50 0.00 n/a
1908 81 46 0.00 n/a
1907 n/a n/a n/a n/a
1906 98 47 0.00 n/a
1905 97 41 0.00 n/a
1904 86 63 0.00 n/a
1903 96 48 0.00 n/a
1902 82 52 0.00 n/a
1901 90 54 0.00 n/a
1900 n/a n/a n/a n/a
1899 102 55 0.00 n/a
What's the all-time high for Merced on 9/18?
For the date of Sep 18, the highest temperature ever reached in Merced history is 108 °F which happened in 1913.
Highest Temperatures in Merced on September 18
Rank Temperature Year
1 108 °F 1913
2 102 °F 1899
3 101 °F 1984
4 100 °F 1922
4 100 °F 1937
4 100 °F 1979
7 99 °F 1991
7 99 °F 2000
7 99 °F 2009
10 98 °F 1934
10 98 °F 1935
10 98 °F 1968
10 98 °F 1974
10 98 °F 2016
10 98 °F 1909
10 98 °F 1923
10 98 °F 1906
What's the all-time low for Merced on 9/18?
For the date of Sep 18, the lowest temperature ever reached in Merced history is 35 °F which happened in 1978.
Lowest Temperatures in Merced on September 18
Rank Temperature Year
1 35 °F 1978
2 41 °F 1905
3 43 °F 1947
4 44 °F 1946
5 45 °F 1944
6 46 °F 1977
6 46 °F 1908
6 46 °F 1965
6 46 °F 1986
6 46 °F 1954
Lowest High Temperatures in Merced on September 18
Rank Temperature Year
1 71 °F 2004
2 72 °F 1910
3 75 °F 1978
3 75 °F 1947
3 75 °F 1982
6 76 °F 1921
6 76 °F 1989
6 76 °F 1986
9 77 °F 1959
9 77 °F 1955
9 77 °F 1925
9 77 °F 1950
What's the most it has ever rained in Merced on 9/18?
For the date of Sep 18, the most precipitation ever recorded in Merced history is 0.68 inches which happened in 1959.
All-Time Most Precipitation in Merced on September 18
Rank Precipitation Year
1 0.68 inches 1959
2 0.10 inches 1982
3 0.09 inches 1989
3 0.09 inches 2022
5 0.07 inches 1966
6 0.06 inches 1963
7 0.04 inches 1921
8 0.01 inches 1950
Weather Station Details
Years Station Coordinates
1998–2024 Merced Municipal Airport location
1899–1998 Merced location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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