Seattle March 21 Weather Records

Daily averages and all-time records for weather in Seattle, Washington for the date of March 21.
March 21 All-Time Records
1894–2024
Highest temperature 72 °F 1915
Lowest temperature 28 °F 1913
Lowest daily high 41 °F 1899
Highest daily low 50 °F 1928
Most precipitation 2.04 inches 1948
Most snow 0.8 inches 1897
March 21 Average Weather
1991–2020 1
Average high 54.1 °F
Average low 39.8 °F
Chance precipitation 54.0%
Chance snow 1.1%
Seattle March 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2024 56 46 0.11 0.0
2023 57 42 0.00 0.0
2022 49 41 0.41 0.0
2021 45 41 0.08 0.0
2020 56 40 0.00 0.0
2019 60 46 0.00 0.0
2018 58 36 0.10 0.0
2017 56 46 0.20 0.0
2016 55 46 0.34 0.0
2015 56 47 0.15 0.0
2014 51 37 0.00 0.0
2013 50 36 0.32 0.0
2012 48 34 0.05 0.0
2011 50 40 0.01 0.0
2010 56 45 0.01 0.0
2009 49 29 0.00 0.0
2008 49 36 0.00 n/a
2007 51 32 0.00 n/a
2006 51 42 0.04 n/a
2005 49 37 0.07 n/a
2004 66 41 0.00 n/a
2003 50 43 0.82 n/a
2002 52 34 0.00 n/a
2001 53 38 0.00 n/a
2000 55 43 0.00 n/a
1999 56 46 0.10 n/a
1998 54 42 0.19 n/a
1997 55 33 0.00 n/a
1996 56 39 0.05 0.0
1995 49 36 0.01 0.0
1994 45 34 0.12 0.2
1993 61 46 0.02 0.0
1992 69 42 0.00 0.0
1991 53 39 0.01 0.0
1990 60 40 0.00 0.0
1989 49 41 0.15 0.0
1988 52 39 0.04 0.0
1987 62 41 0.00 0.0
1986 54 41 0.24 0.0
1985 47 35 0.11 0.0
1984 50 44 0.02 0.0
1983 58 45 0.13 0.0
1982 54 33 0.00 0.0
1981 62 43 0.01 0.0
1980 51 42 0.00 0.0
1979 61 37 0.00 0.0
1978 62 46 0.00 0.0
1977 53 46 0.05 0.0
1976 58 36 0.03 0.0
1975 49 35 0.06 0.0
1974 58 36 0.00 0.0
1973 52 38 0.00 0.0
1972 55 44 0.14 0.0
1971 49 32 0.00 0.0
1970 51 43 0.01 0.0
1969 58 38 0.00 0.0
1968 68 44 0.00 0.0
1967 54 42 0.19 0.0
1966 47 32 0.00 0.0
1965 50 42 0.01 0.0
1964 49 37 0.04 0.0
1963 64 44 0.03 0.0
1962 44 33 0.11 0.0
1961 55 34 0.00 0.0
1960 48 40 0.00 0.0
1959 51 39 0.44 0.0
1958 59 45 0.24 0.0
1957 46 36 0.00 0.0
1956 55 43 0.31 0.0
1955 46 37 0.29 0.0
1954 53 29 0.00 0.0
1953 47 39 0.03 0.0
1952 49 29 0.00 0.0
1951 45 38 0.11 0.0
1950 49 34 0.23 0.0
1949 52 37 0.00 0.0
1948 46 37 2.04 0.0
1947 52 45 0.14 0.0
1946 56 37 0.00 0.0
1945 n/a 40 n/a 0.0
1944 50 37 0.00 0.0
1943 55 44 0.00 0.0
1942 54 40 0.05 0.0
1941 59 45 0.15 0.0
1940 64 38 0.00 0.0
1939 68 41 0.00 0.0
1938 48 34 0.00 0.0
1937 51 42 0.04 0.0
1936 46 35 0.01 0.0
1935 48 35 0.00 0.0
1934 56 43 0.00 0.0
1933 46 34 0.20 0.0
1932 51 41 0.00 0.0
1931 59 44 0.10 0.0
1930 49 41 1.07 0.0
1929 51 37 0.01 0.0
1928 58 50 0.92 0.0
1927 50 42 0.01 0.0
1926 58 44 0.03 0.0
1925 56 38 0.00 0.0
1924 53 40 0.02 0.0
1923 48 36 0.10 0.0
1922 47 35 0.65 0.0
1921 55 43 0.23 0.0
1920 57 46 0.03 0.0
1919 53 40 0.00 0.0
1918 54 45 0.65 0.0
1917 47 35 0.02 0.0
1916 46 39 0.58 0.0
1915 72 45 0.00 0.0
1914 66 46 0.00 0.0
1913 45 28 0.00 0.0
1912 54 32 0.00 0.0
1911 53 43 0.00 0.0
1910 50 45 0.00 0.0
1909 51 37 0.00 0.0
1908 53 41 0.00 0.0
1907 45 34 0.12 0.0
1906 62 44 0.06 0.0
1905 48 42 0.01 0.0
1904 43 35 0.15 0.1
1903 54 35 0.00 0.0
1902 50 39 0.00 0.0
1901 51 40 0.00 0.0
1900 56 43 0.02 0.0
1899 41 34 0.04 0.4
1898 43 34 0.00 0.0
1897 46 31 0.08 0.8
1896 51 40 0.08 0.0
1895 43 38 0.26 0.0
1894 55 32 0.00 0.0
What's the all-time high for Seattle on 3/21?
For the date of Mar 21, the highest temperature ever reached in Seattle history is 72 °F which happened in 1915.
Highest Temperatures in Seattle on March 21
Rank Temperature Year
1 72 °F 1915
2 69 °F 1992
3 68 °F 1968
3 68 °F 1939
5 66 °F 1914
5 66 °F 2004
7 64 °F 1963
7 64 °F 1940
9 62 °F 1981
9 62 °F 1987
9 62 °F 1906
9 62 °F 1978
What's the all-time low for Seattle on 3/21?
For the date of Mar 21, the lowest temperature ever reached in Seattle history is 28 °F which happened in 1913.
Lowest Temperatures in Seattle on March 21
Rank Temperature Year
1 28 °F 1913
2 29 °F 1952
2 29 °F 2009
2 29 °F 1954
5 31 °F 1897
6 32 °F 2007
6 32 °F 1912
6 32 °F 1894
6 32 °F 1971
6 32 °F 1966
Lowest High Temperatures in Seattle on March 21
Rank Temperature Year
1 41 °F 1899
2 43 °F 1895
2 43 °F 1904
2 43 °F 1898
5 44 °F 1962
6 45 °F 2021
6 45 °F 1951
6 45 °F 1907
6 45 °F 1994
6 45 °F 1913
What's the most it has ever rained in Seattle on 3/21?
For the date of Mar 21, the most precipitation ever recorded in Seattle history is 2.04 inches which happened in 1948.
All-Time Most Precipitation in Seattle on March 21
Rank Precipitation Year
1 2.04 inches 1948
2 1.07 inches 1930
3 0.92 inches 1928
4 0.82 inches 2003
5 0.65 inches 1918
5 0.65 inches 1922
7 0.58 inches 1916
8 0.44 inches 1959
9 0.41 inches 2022
10 0.34 inches 2016
All-Time Most Snow in Seattle on March 21
Rank Precipitation Year
1 0.8 inches 1897
2 0.4 inches 1899
3 0.2 inches 1994
4 0.1 inches 1904
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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