Seattle September 12 Weather Records

Daily averages and all-time records for weather in Seattle, Washington for the date of September 12.
September 12 All-Time Records
1894–2024
Highest temperature 87 °F 1924
Lowest temperature 44 °F 1962
Lowest daily high 57 °F 1980
Highest daily low 60 °F 2022
Most precipitation 0.77 inches 1934
Most snow none -
September 12 Average Weather
1991–2020 1
Average high 71.4 °F
Average low 53.7 °F
Chance precipitation 27.5%
Chance snow 0%
Seattle September 12 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 69 55 0.05 0.0
2022 72 60 0.00 0.0
2021 67 56 0.02 0.0
2020 61 51 0.00 0.0
2019 79 57 0.24 0.0
2018 67 55 0.01 0.0
2017 77 57 0.00 0.0
2016 75 54 0.00 0.0
2015 80 58 0.00 0.0
2014 76 55 0.00 0.0
2013 78 59 0.00 0.0
2012 72 50 0.00 0.0
2011 68 57 0.00 0.0
2010 70 56 0.00 0.0
2009 83 56 0.00 0.0
2008 75 52 0.00 n/a
2007 71 56 0.00 n/a
2006 75 57 0.00 n/a
2005 68 53 0.00 n/a
2004 66 53 0.60 n/a
2003 67 51 0.00 n/a
2002 80 54 0.00 n/a
2001 77 53 0.00 n/a
2000 75 51 0.00 n/a
1999 80 54 0.00 n/a
1998 75 55 0.00 n/a
1997 68 53 0.00 n/a
1996 67 54 0.00 0.0
1995 74 55 0.00 0.0
1994 70 49 0.00 0.0
1993 69 47 0.00 0.0
1992 66 51 0.00 0.0
1991 63 52 0.00 0.0
1990 66 55 0.00 0.0
1989 83 53 0.00 0.0
1988 80 50 0.00 0.0
1987 62 55 0.06 0.0
1986 73 48 0.00 0.0
1985 67 53 0.06 0.0
1984 67 50 0.00 0.0
1983 71 53 0.00 0.0
1982 64 51 0.03 0.0
1981 73 51 0.00 0.0
1980 57 52 0.14 0.0
1979 77 53 0.00 0.0
1978 66 53 0.00 0.0
1977 76 54 0.00 0.0
1976 70 56 0.00 0.0
1975 85 59 0.00 0.0
1974 76 52 0.00 0.0
1973 65 56 0.04 0.0
1972 70 49 0.00 0.0
1971 68 49 0.00 0.0
1970 65 49 0.00 0.0
1969 66 54 0.05 0.0
1968 65 53 0.00 0.0
1967 69 47 0.00 0.0
1966 65 46 0.00 0.0
1965 66 53 0.00 0.0
1964 77 47 0.00 0.0
1963 73 58 0.02 0.0
1962 65 44 0.05 0.0
1961 85 56 0.00 0.0
1960 65 55 0.01 0.0
1959 73 52 0.00 0.0
1958 69 52 0.00 0.0
1957 76 55 0.00 0.0
1956 66 50 0.00 0.0
1955 69 45 0.00 0.0
1954 65 54 0.17 0.0
1953 71 53 0.03 0.0
1952 65 46 0.01 0.0
1951 70 45 0.00 0.0
1950 77 45 0.00 0.0
1949 76 44 0.00 0.0
1948 75 52 0.00 0.0
1947 72 54 0.00 0.0
1946 74 59 0.03 0.0
1945 82 58 0.00 0.0
1944 64 55 0.00 0.0
1943 62 54 0.00 0.0
1942 71 53 0.00 0.0
1941 66 55 0.00 0.0
1940 68 60 0.27 0.0
1939 67 47 0.00 0.0
1938 81 54 0.00 0.0
1937 69 57 0.00 0.0
1936 57 47 0.12 0.0
1935 65 52 0.00 0.0
1934 62 53 0.77 0.0
1933 64 49 0.00 0.0
1932 68 51 0.00 0.0
1931 67 53 0.00 0.0
1930 61 56 0.00 0.0
1929 80 54 0.00 0.0
1928 63 51 0.06 0.0
1927 57 49 0.02 0.0
1926 76 54 0.00 0.0
1925 70 53 0.00 0.0
1924 87 53 0.00 0.0
1923 66 56 0.00 0.0
1922 75 56 0.00 0.0
1921 65 46 0.00 0.0
1920 60 52 0.35 0.0
1919 67 55 0.00 0.0
1918 79 52 0.00 0.0
1917 68 53 0.06 0.0
1916 66 54 0.00 0.0
1915 64 48 0.00 0.0
1914 63 46 0.00 0.0
1913 76 50 0.00 0.0
1912 75 52 0.00 0.0
1911 60 53 0.65 0.0
1910 69 49 0.00 0.0
1909 70 52 0.00 0.0
1908 75 53 0.00 0.0
1907 60 47 0.00 0.0
1906 58 50 0.47 0.0
1905 65 57 0.04 0.0
1904 72 47 0.00 0.0
1903 61 50 0.46 0.0
1902 74 57 0.00 0.0
1901 65 55 0.33 0.0
1900 79 54 0.00 0.0
1899 66 55 0.00 0.0
1898 69 55 0.00 0.0
1897 68 51 0.00 0.0
1896 59 50 0.40 0.0
1895 62 51 0.41 0.0
1894 60 46 0.17 0.0
What's the all-time high for Seattle on 9/12?
For the date of Sep 12, the highest temperature ever reached in Seattle history is 87 °F which happened in 1924.
Highest Temperatures in Seattle on September 12
Rank Temperature Year
1 87 °F 1924
2 85 °F 1975
2 85 °F 1961
4 83 °F 1989
4 83 °F 2009
6 82 °F 1945
7 81 °F 1938
8 80 °F 1929
8 80 °F 2015
8 80 °F 1999
8 80 °F 1988
8 80 °F 2002
What's the all-time low for Seattle on 9/12?
For the date of Sep 12, the lowest temperature ever reached in Seattle history is 44 °F which has happened 2 times, most recently in 1962.
Lowest Temperatures in Seattle on September 12
Rank Temperature Year
1 44 °F 1962
1 44 °F 1949
3 45 °F 1950
3 45 °F 1951
3 45 °F 1955
6 46 °F 1952
6 46 °F 1921
6 46 °F 1914
6 46 °F 1894
6 46 °F 1966
Lowest High Temperatures in Seattle on September 12
Rank Temperature Year
1 57 °F 1936
1 57 °F 1927
1 57 °F 1980
4 58 °F 1906
5 59 °F 1896
6 60 °F 1911
6 60 °F 1920
6 60 °F 1907
6 60 °F 1894
10 61 °F 2020
10 61 °F 1930
10 61 °F 1903
What's the most it has ever rained in Seattle on 9/12?
For the date of Sep 12, the most precipitation ever recorded in Seattle history is 0.77 inches which happened in 1934.
All-Time Most Precipitation in Seattle on September 12
Rank Precipitation Year
1 0.77 inches 1934
2 0.65 inches 1911
3 0.60 inches 2004
4 0.47 inches 1906
5 0.46 inches 1903
6 0.41 inches 1895
7 0.40 inches 1896
8 0.35 inches 1920
9 0.33 inches 1901
10 0.27 inches 1940
Weather Station Details
Years Station Coordinates
1948–2024 Seattle Tacoma International Airport location
1894–1947 University of Washington location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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