Seattle October 20 Weather Records

Daily averages and all-time records for weather in Seattle, Washington for the date of October 20.
October 20 All-Time Records
1894–2024
Highest temperature 70 °F 1938
Lowest temperature 29 °F 1949
Lowest daily high 47 °F 1908
Highest daily low 59 °F 1901
Most precipitation 5.02 inches 2003
Most snow none -
October 20 Average Weather
1991–2020 1
Average high 58.4 °F
Average low 45.6 °F
Chance precipitation 49.3%
Chance snow 0%
Seattle October 20 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 62 53 0.00 0.0
2022 63 48 0.00 0.0
2021 61 51 0.29 0.0
2020 59 47 0.00 0.0
2019 54 46 0.13 0.0
2018 58 45 0.00 0.0
2017 53 46 0.13 0.0
2016 60 50 1.19 0.0
2015 64 51 0.00 0.0
2014 61 54 0.46 0.0
2013 51 46 0.00 0.0
2012 52 43 0.02 0.0
2011 59 47 0.00 0.0
2010 65 44 0.00 0.0
2009 56 43 0.00 0.0
2008 56 45 0.25 n/a
2007 54 43 0.23 n/a
2006 57 46 0.00 n/a
2005 58 45 0.00 n/a
2004 55 46 0.00 n/a
2003 65 56 5.02 n/a
2002 58 51 0.00 n/a
2001 51 42 0.00 n/a
2000 58 46 0.79 n/a
1999 64 41 0.00 n/a
1998 66 45 0.00 n/a
1997 54 38 0.00 n/a
1996 51 37 0.00 n/a
1995 59 48 0.44 0.0
1994 56 51 0.06 0.0
1993 61 43 0.00 0.0
1992 64 56 0.15 0.0
1991 65 47 0.00 0.0
1990 55 40 0.09 0.0
1989 62 48 0.38 0.0
1988 65 52 0.00 0.0
1987 69 42 0.00 0.0
1986 65 42 0.00 0.0
1985 60 47 0.53 0.0
1984 54 39 0.00 0.0
1983 61 50 0.02 0.0
1982 56 37 0.01 0.0
1981 56 44 0.00 0.0
1980 60 52 0.00 0.0
1979 56 43 0.06 0.0
1978 57 50 0.10 0.0
1977 50 43 0.00 0.0
1976 64 38 0.00 0.0
1975 56 47 0.08 0.0
1974 59 42 0.46 0.0
1973 63 51 0.17 0.0
1972 51 42 0.00 0.0
1971 54 44 0.13 0.0
1970 54 43 0.29 0.0
1969 58 51 0.00 0.0
1968 56 45 0.30 0.0
1967 55 40 0.54 0.0
1966 49 40 0.28 0.0
1965 66 52 0.09 0.0
1964 63 39 0.00 0.0
1963 54 44 0.74 0.0
1962 59 46 0.00 0.0
1961 51 37 0.24 0.0
1960 60 52 0.00 0.0
1959 53 49 0.19 0.0
1958 58 40 0.00 0.0
1957 60 36 0.00 0.0
1956 57 47 1.27 0.0
1955 54 44 0.00 0.0
1954 52 44 0.39 0.0
1953 57 44 0.10 0.0
1952 61 50 0.30 0.0
1951 55 44 0.06 0.0
1950 55 42 0.02 0.0
1949 53 29 0.00 0.0
1948 63 40 0.00 0.0
1947 51 47 0.12 0.0
1946 58 50 0.80 0.0
1945 55 43 0.00 0.0
1944 67 48 0.00 0.0
1943 55 43 0.07 0.0
1942 62 50 0.00 0.0
1941 60 48 0.00 0.0
1940 64 56 0.18 0.0
1939 65 55 0.02 0.0
1938 70 48 0.00 0.0
1937 64 55 0.03 0.0
1936 59 49 0.00 0.0
1935 53 46 0.09 0.0
1934 57 50 0.24 0.0
1933 55 42 0.00 0.0
1932 64 54 0.10 0.0
1931 57 45 0.05 0.0
1930 59 46 0.00 0.0
1929 62 49 0.01 0.0
1928 53 41 0.00 0.0
1927 68 50 0.00 0.0
1926 62 45 0.00 0.0
1925 62 45 0.00 0.0
1924 62 46 0.00 0.0
1923 65 48 0.00 0.0
1922 60 52 0.00 0.0
1921 57 46 0.14 0.0
1920 55 43 0.02 0.0
1919 59 47 0.01 0.0
1918 62 49 0.00 0.0
1917 60 36 0.00 0.0
1916 58 36 0.00 0.0
1915 65 52 0.00 0.0
1914 57 48 0.18 0.0
1913 51 48 0.00 0.0
1912 53 40 0.00 0.0
1911 62 43 0.00 0.0
1910 59 47 0.00 0.0
1909 57 47 0.23 0.0
1908 47 38 0.00 0.0
1907 53 50 0.00 0.0
1906 53 39 0.00 0.0
1905 53 38 0.00 0.0
1904 64 44 0.00 0.0
1903 56 49 0.00 0.0
1902 60 47 0.05 0.0
1901 64 59 0.61 0.0
1900 56 49 0.12 0.0
1899 53 48 1.03 0.0
1898 60 43 0.00 0.0
1897 56 45 0.35 0.0
1896 60 49 0.58 0.0
1895 66 41 0.00 0.0
1894 51 41 0.01 0.0
What's the all-time high for Seattle on 10/20?
For the date of Oct 20, the highest temperature ever reached in Seattle history is 70 °F which happened in 1938.
Highest Temperatures in Seattle on October 20
Rank Temperature Year
1 70 °F 1938
2 69 °F 1987
3 68 °F 1927
4 67 °F 1944
5 66 °F 1895
5 66 °F 1965
5 66 °F 1998
8 65 °F 1991
8 65 °F 1939
8 65 °F 1988
8 65 °F 2003
8 65 °F 1923
8 65 °F 1986
8 65 °F 1915
8 65 °F 2010
What's the all-time low for Seattle on 10/20?
For the date of Oct 20, the lowest temperature ever reached in Seattle history is 29 °F which happened in 1949.
Lowest Temperatures in Seattle on October 20
Rank Temperature Year
1 29 °F 1949
2 36 °F 1957
2 36 °F 1916
2 36 °F 1917
5 37 °F 1982
5 37 °F 1961
5 37 °F 1996
8 38 °F 1908
8 38 °F 1905
8 38 °F 1997
8 38 °F 1976
Lowest High Temperatures in Seattle on October 20
Rank Temperature Year
1 47 °F 1908
2 49 °F 1966
3 50 °F 1977
4 51 °F 1947
4 51 °F 1961
4 51 °F 1996
4 51 °F 2013
4 51 °F 2001
4 51 °F 1972
4 51 °F 1913
4 51 °F 1894
What's the most it has ever rained in Seattle on 10/20?
For the date of Oct 20, the most precipitation ever recorded in Seattle history is 5.02 inches which happened in 2003.
All-Time Most Precipitation in Seattle on October 20
Rank Precipitation Year
1 5.02 inches 2003
2 1.27 inches 1956
3 1.19 inches 2016
4 1.03 inches 1899
5 0.80 inches 1946
6 0.79 inches 2000
7 0.74 inches 1963
8 0.61 inches 1901
9 0.58 inches 1896
10 0.54 inches 1967
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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