Seattle July 21 Weather Records

Daily averages and all-time records for weather in Seattle, Washington for the date of July 21.
July 21 All-Time Records
1894–2024
Highest temperature 97 °F 2006
Lowest temperature 48 °F 1951
Lowest daily high 63 °F 1912
Highest daily low 66 °F 2006
Most precipitation 0.29 inches 2007
Most snow none -
July 21 Average Weather
1991–2020 1
Average high 77.4 °F
Average low 56.8 °F
Chance precipitation 13.8%
Chance snow 0%
Seattle July 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 78 58 0.00 0.0
2022 81 57 0.00 0.0
2021 72 56 0.00 0.0
2020 81 62 0.00 0.0
2019 91 56 0.00 0.0
2018 79 56 0.00 0.0
2017 78 55 0.00 0.0
2016 84 58 0.00 0.0
2015 75 59 0.00 0.0
2014 75 56 0.00 0.0
2013 75 55 0.00 0.0
2012 75 57 0.00 0.0
2011 70 57 0.00 0.0
2010 80 52 0.00 0.0
2009 87 59 0.00 0.0
2008 74 54 0.00 n/a
2007 74 60 0.29 n/a
2006 97 66 0.00 n/a
2005 81 57 0.00 n/a
2004 79 60 0.00 n/a
2003 86 63 0.00 n/a
2002 81 56 0.00 n/a
2001 64 54 0.01 n/a
2000 83 56 0.00 n/a
1999 69 56 0.00 n/a
1998 85 59 0.00 n/a
1997 68 55 0.00 n/a
1996 76 56 0.00 0.0
1995 70 60 0.00 0.0
1994 94 64 0.00 0.0
1993 69 55 0.01 0.0
1992 70 59 0.00 0.0
1991 78 58 0.00 0.0
1990 94 61 0.00 0.0
1989 75 54 0.00 0.0
1988 82 53 0.00 0.0
1987 83 55 0.00 0.0
1986 80 52 0.00 0.0
1985 81 55 0.00 0.0
1984 71 51 0.00 0.0
1983 78 56 0.00 0.0
1982 66 53 0.00 0.0
1981 70 57 0.00 0.0
1980 85 60 0.00 0.0
1979 72 58 0.00 0.0
1978 93 61 0.00 0.0
1977 75 55 0.00 0.0
1976 68 55 0.00 0.0
1975 80 54 0.00 0.0
1974 79 51 0.00 0.0
1973 67 53 0.02 0.0
1972 83 57 0.00 0.0
1971 85 61 0.00 0.0
1970 67 53 0.00 0.0
1969 77 51 0.00 0.0
1968 72 52 0.00 0.0
1967 76 59 0.00 0.0
1966 77 51 0.00 0.0
1965 70 54 0.00 0.0
1964 66 55 0.03 0.0
1963 70 59 0.27 0.0
1962 82 56 0.00 0.0
1961 79 58 0.00 0.0
1960 79 51 0.00 0.0
1959 87 59 0.00 0.0
1958 82 55 0.00 0.0
1957 73 54 0.00 0.0
1956 80 58 0.00 0.0
1955 78 49 0.00 0.0
1954 68 52 0.00 0.0
1953 78 51 0.00 0.0
1952 69 49 0.00 0.0
1951 79 48 0.00 0.0
1950 86 56 0.00 0.0
1949 71 50 0.00 0.0
1948 74 55 0.00 0.0
1947 76 56 0.00 0.0
1946 85 62 0.00 0.0
1945 72 60 0.16 0.0
1944 73 56 0.00 0.0
1943 82 58 0.00 0.0
1942 84 63 0.00 0.0
1941 75 60 0.00 0.0
1940 72 58 0.10 0.0
1939 79 57 0.00 0.0
1938 92 63 0.00 0.0
1937 76 55 0.00 0.0
1936 82 57 0.00 0.0
1935 88 57 0.00 0.0
1934 69 54 0.00 0.0
1933 74 55 0.00 0.0
1932 78 54 0.00 0.0
1931 72 57 0.00 0.0
1930 79 56 0.00 0.0
1929 72 52 0.00 0.0
1928 84 56 0.00 0.0
1927 80 56 0.00 0.0
1926 80 57 0.00 0.0
1925 71 52 0.00 0.0
1924 67 50 0.00 0.0
1923 80 54 0.00 0.0
1922 67 48 0.00 0.0
1921 73 52 0.00 0.0
1920 69 54 0.00 0.0
1919 82 58 0.00 0.0
1918 72 56 0.01 0.0
1917 72 52 0.00 0.0
1916 72 54 0.00 0.0
1915 76 59 0.00 0.0
1914 67 54 0.00 0.0
1913 86 61 0.00 0.0
1912 63 58 0.04 0.0
1911 63 57 0.00 0.0
1910 68 56 0.00 0.0
1909 78 55 0.00 0.0
1908 83 60 0.00 0.0
1907 70 55 0.00 0.0
1906 81 56 0.00 0.0
1905 81 56 0.00 0.0
1904 90 60 0.00 0.0
1903 81 59 0.00 0.0
1902 72 57 0.00 0.0
1901 63 56 0.18 0.0
1900 82 58 0.00 0.0
1899 64 55 0.00 0.0
1898 74 52 0.00 0.0
1897 74 54 0.00 0.0
1896 72 56 0.00 0.0
1895 79 55 0.00 0.0
1894 72 54 0.00 0.0
What's the all-time high for Seattle on 7/21?
For the date of Jul 21, the highest temperature ever reached in Seattle history is 97 °F which happened in 2006.
Highest Temperatures in Seattle on July 21
Rank Temperature Year
1 97 °F 2006
2 94 °F 1994
2 94 °F 1990
4 93 °F 1978
5 92 °F 1938
6 91 °F 2019
7 90 °F 1904
8 88 °F 1935
9 87 °F 2009
9 87 °F 1959
What's the all-time low for Seattle on 7/21?
For the date of Jul 21, the lowest temperature ever reached in Seattle history is 48 °F which has happened 2 times, most recently in 1951.
Lowest Temperatures in Seattle on July 21
Rank Temperature Year
1 48 °F 1922
1 48 °F 1951
3 49 °F 1952
3 49 °F 1955
5 50 °F 1949
5 50 °F 1924
7 51 °F 1969
7 51 °F 1953
7 51 °F 1960
7 51 °F 1974
7 51 °F 1966
7 51 °F 1984
Lowest High Temperatures in Seattle on July 21
Rank Temperature Year
1 63 °F 1901
1 63 °F 1911
1 63 °F 1912
4 64 °F 1899
4 64 °F 2001
6 66 °F 1964
6 66 °F 1982
8 67 °F 1922
8 67 °F 1924
8 67 °F 1914
8 67 °F 1970
8 67 °F 1973
What's the most it has ever rained in Seattle on 7/21?
For the date of Jul 21, the most precipitation ever recorded in Seattle history is 0.29 inches which happened in 2007.
All-Time Most Precipitation in Seattle on July 21
Rank Precipitation Year
1 0.29 inches 2007
2 0.27 inches 1963
3 0.18 inches 1901
4 0.16 inches 1945
5 0.10 inches 1940
6 0.04 inches 1912
7 0.03 inches 1964
8 0.02 inches 1973
9 0.01 inches 1918
9 0.01 inches 1993
9 0.01 inches 2001
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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