Seattle October 18 Weather Records

Daily averages and all-time records for weather in Seattle, Washington for the date of October 18.
October 18 All-Time Records
1894–2024
Highest temperature 74 °F 1940
Lowest temperature 31 °F 1905
Lowest daily high 45 °F 1905
Highest daily low 63 °F 1940
Most precipitation 1.92 inches 1947
Most snow none -
October 18 Average Weather
1991–2020 1
Average high 59.0 °F
Average low 46.1 °F
Chance precipitation 46.8%
Chance snow 0%
Seattle October 18 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 71 51 0.00 0.0
2022 68 47 0.00 0.0
2021 54 48 0.00 0.0
2020 63 52 0.01 0.0
2019 52 47 0.82 0.0
2018 67 46 0.00 0.0
2017 64 47 1.35 0.0
2016 58 49 0.08 0.0
2015 59 55 0.15 0.0
2014 67 57 0.59 0.0
2013 55 45 0.00 0.0
2012 64 44 0.82 0.0
2011 67 45 0.00 0.0
2010 59 42 0.00 0.0
2009 61 52 0.09 0.0
2008 57 44 0.00 n/a
2007 60 45 0.23 n/a
2006 53 49 0.28 n/a
2005 56 52 0.02 n/a
2004 53 47 0.09 n/a
2003 65 52 0.00 n/a
2002 53 46 0.00 n/a
2001 54 43 0.00 n/a
2000 58 47 0.00 n/a
1999 63 44 0.00 n/a
1998 56 38 0.00 n/a
1997 53 46 0.00 n/a
1996 50 41 0.10 n/a
1995 59 45 0.00 0.0
1994 56 46 0.00 0.0
1993 60 44 0.00 0.0
1992 63 51 0.09 0.0
1991 62 43 0.00 0.0
1990 57 45 0.15 0.0
1989 60 50 0.14 0.0
1988 53 47 0.17 0.0
1987 60 42 0.00 0.0
1986 54 43 0.00 0.0
1985 63 48 0.00 0.0
1984 55 40 0.00 0.0
1983 57 43 0.00 0.0
1982 53 38 0.00 0.0
1981 51 47 0.00 0.0
1980 61 42 0.00 0.0
1979 52 47 0.60 0.0
1978 65 50 0.00 0.0
1977 55 44 0.00 0.0
1976 67 44 0.00 0.0
1975 57 46 0.00 0.0
1974 70 42 0.00 0.0
1973 68 49 0.00 0.0
1972 48 43 0.00 0.0
1971 53 45 0.66 0.0
1970 60 50 0.07 0.0
1969 51 35 0.00 0.0
1968 54 42 0.00 0.0
1967 58 46 0.08 0.0
1966 61 40 0.00 0.0
1965 56 48 0.50 0.0
1964 65 41 0.00 0.0
1963 56 42 0.00 0.0
1962 51 40 0.07 0.0
1961 61 39 0.00 0.0
1960 65 44 0.00 0.0
1959 58 44 0.00 0.0
1958 63 47 1.19 0.0
1957 54 39 0.00 0.0
1956 49 42 0.35 0.0
1955 52 44 0.00 0.0
1954 62 43 0.00 0.0
1953 57 47 0.47 0.0
1952 67 40 0.00 0.0
1951 59 44 0.45 0.0
1950 56 47 0.37 0.0
1949 48 32 0.00 0.0
1948 67 42 0.00 0.0
1947 61 49 1.92 0.0
1946 59 42 0.00 0.0
1945 54 39 0.17 0.0
1944 70 46 0.00 0.0
1943 56 45 0.00 0.0
1942 72 46 0.00 0.0
1941 58 52 0.38 0.0
1940 74 63 0.13 0.0
1939 60 48 0.05 0.0
1938 67 40 0.00 0.0
1937 63 49 0.00 0.0
1936 69 49 0.00 0.0
1935 59 51 0.29 0.0
1934 63 41 0.00 0.0
1933 57 48 0.14 0.0
1932 57 43 0.00 0.0
1931 57 52 0.00 0.0
1930 61 50 0.00 0.0
1929 59 47 0.06 0.0
1928 51 48 0.00 0.0
1927 60 53 0.72 0.0
1926 60 49 0.00 0.0
1925 56 45 0.00 0.0
1924 61 44 0.00 0.0
1923 56 47 0.00 0.0
1922 53 46 0.01 0.0
1921 55 48 0.01 0.0
1920 46 38 0.10 0.0
1919 53 46 0.00 0.0
1918 61 51 0.00 0.0
1917 54 40 0.01 0.0
1916 59 39 0.00 0.0
1915 55 48 0.78 0.0
1914 56 48 0.79 0.0
1913 59 50 0.00 0.0
1912 49 43 0.41 0.0
1911 56 39 0.00 0.0
1910 60 52 0.00 0.0
1909 60 40 0.11 0.0
1908 52 39 0.18 0.0
1907 55 43 0.00 0.0
1906 54 44 0.12 0.0
1905 45 31 0.00 0.0
1904 57 49 0.04 0.0
1903 60 54 0.00 0.0
1902 57 47 0.00 0.0
1901 64 54 0.00 0.0
1900 60 52 0.45 0.0
1899 53 45 0.21 0.0
1898 57 46 0.00 0.0
1897 64 41 0.00 0.0
1896 56 46 0.00 0.0
1895 73 45 0.00 0.0
1894 49 36 0.00 0.0
What's the all-time high for Seattle on 10/18?
For the date of Oct 18, the highest temperature ever reached in Seattle history is 74 °F which happened in 1940.
Highest Temperatures in Seattle on October 18
Rank Temperature Year
1 74 °F 1940
2 73 °F 1895
3 72 °F 1942
4 71 °F 2023
5 70 °F 1974
5 70 °F 1944
7 69 °F 1936
8 68 °F 1973
8 68 °F 2022
10 67 °F 1952
10 67 °F 2014
10 67 °F 1976
10 67 °F 1938
10 67 °F 1948
10 67 °F 2018
10 67 °F 2011
What's the all-time low for Seattle on 10/18?
For the date of Oct 18, the lowest temperature ever reached in Seattle history is 31 °F which happened in 1905.
Lowest Temperatures in Seattle on October 18
Rank Temperature Year
1 31 °F 1905
2 32 °F 1949
3 35 °F 1969
4 36 °F 1894
5 38 °F 1998
5 38 °F 1982
5 38 °F 1920
8 39 °F 1916
8 39 °F 1945
8 39 °F 1911
8 39 °F 1957
8 39 °F 1908
8 39 °F 1961
Lowest High Temperatures in Seattle on October 18
Rank Temperature Year
1 45 °F 1905
2 46 °F 1920
3 48 °F 1972
3 48 °F 1949
5 49 °F 1956
5 49 °F 1912
5 49 °F 1894
8 50 °F 1996
9 51 °F 1928
9 51 °F 1969
9 51 °F 1981
9 51 °F 1962
What's the most it has ever rained in Seattle on 10/18?
For the date of Oct 18, the most precipitation ever recorded in Seattle history is 1.92 inches which happened in 1947.
All-Time Most Precipitation in Seattle on October 18
Rank Precipitation Year
1 1.92 inches 1947
2 1.35 inches 2017
3 1.19 inches 1958
4 0.82 inches 2019
4 0.82 inches 2012
6 0.79 inches 1914
7 0.78 inches 1915
8 0.72 inches 1927
9 0.66 inches 1971
10 0.60 inches 1979
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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