Kennewick May 21 Weather Records

Daily averages and all-time records for weather in Kennewick, Washington for the date of May 21.
May 21 All-Time Records
1894–2024
Highest temperature 95 °F 1928
Lowest temperature 33 °F 2009
Lowest daily high 61 °F 2010
Highest daily low 62 °F 1964
Most precipitation 0.81 inches 1972
May 21 Average Weather
1991–2020 1
Average high 77.7 °F
Average low 48.7 °F
Chance precipitation 22.0%
Kennewick May 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 86 57 0.00 n/a
2022 75 43 0.00 n/a
2021 73 45 0.00 n/a
2020 71 50 0.00 n/a
2019 63 53 0.03 n/a
2018 84 56 0.00 0.0
2017 85 46 0.00 0.0
2016 68 50 0.51 0.0
2015 87 59 0.00 0.0
2014 85 47 0.00 0.0
2013 67 45 0.18 0.0
2012 72 57 0.20 0.0
2011 71 52 0.00 n/a
2010 61 34 0.00 n/a
2009 78 33 0.00 n/a
2008 70 51 0.00 n/a
2007 71 46 0.04 n/a
2006 69 52 0.06 n/a
2005 68 45 0.10 n/a
2004 80 51 0.23 n/a
2003 76 50 0.00 n/a
2002 73 44 0.00 n/a
2001 83 39 0.00 n/a
2000 91 56 0.00 n/a
1999 75 48 0.00 n/a
1998 66 51 0.01 0.0
1997 73 45 0.00 0.0
1996 70 48 0.00 0.0
1995 84 50 0.00 0.0
1994 70 51 0.02 0.0
1993 79 56 0.06 0.0
1992 70 42 0.00 0.0
1991 74 49 0.00 0.0
1990 71 51 0.00 0.0
1989 72 44 0.00 0.0
1988 80 50 0.00 0.0
1987 68 46 0.00 0.0
1986 68 45 0.52 0.0
1985 78 50 0.00 0.0
1984 68 45 0.00 0.0
1983 90 53 0.00 0.0
1982 83 n/a 0.00 0.0
1981 77 53 0.00 0.0
1980 89 60 0.00 0.0
1979 81 52 0.00 0.0
1978 87 n/a 0.00 0.0
1977 74 57 0.00 0.0
1976 n/a n/a n/a n/a
1975 80 41 0.00 0.0
1974 75 37 0.00 0.0
1973 75 39 0.00 0.0
1972 74 53 0.81 0.0
1971 76 46 0.00 0.0
1970 80 50 0.00 0.0
1969 83 48 0.00 0.0
1968 72 56 0.00 0.0
1967 91 52 0.00 0.0
1966 83 52 0.00 0.0
1965 74 46 0.00 n/a
1964 71 62 0.00 0.0
1963 92 55 0.00 0.0
1962 74 48 0.00 0.0
1961 87 55 0.01 0.0
1960 61 40 0.00 0.0
1959 69 52 0.03 0.0
1958 92 58 0.01 0.0
1957 69 50 0.00 0.0
1956 79 52 0.00 0.0
1955 75 46 0.00 0.0
1954 75 48 0.00 0.0
1953 66 41 0.02 0.0
1952 75 50 0.00 0.0
1951 87 45 0.00 0.0
1950 84 54 0.00 0.0
1949 77 53 0.00 0.0
1948 78 53 0.00 0.0
1947 80 52 0.00 0.0
1946 83 48 0.00 0.0
1945 70 46 0.00 0.0
1944 73 48 0.00 0.0
1943 71 51 0.00 0.0
1942 90 55 0.04 n/a
1941 85 47 0.00 n/a
1940 90 47 0.00 n/a
1939 71 53 0.01 n/a
1938 85 42 0.00 n/a
1937 81 50 n/a n/a
1936 74 50 0.00 n/a
1935 90 45 n/a n/a
1934 n/a 36 0.00 0.0
1933 n/a n/a 0.00 n/a
1932 62 47 0.07 n/a
1931 70 37 0.00 n/a
1930 65 44 0.00 n/a
1929 90 51 0.00 n/a
1928 95 52 0.01 n/a
1927 68 47 0.00 n/a
1926 76 56 0.00 n/a
1925 70 48 0.03 0.0
1924 90 47 0.00 n/a
1923 83 47 0.00 0.0
1922 68 42 0.00 0.0
1921 78 53 0.02 n/a
1920 70 43 0.00 n/a
1919 95 42 0.00 0.0
1918 73 38 0.00 0.0
1917 72 51 0.00 n/a
1916 72 50 0.03 0.0
1915 73 50 0.00 0.0
1914 84 52 0.00 0.0
1913 85 44 0.00 n/a
1912 69 50 0.07 n/a
1911 82 42 0.00 n/a
1910 88 39 0.00 0.0
1909 68 41 0.00 n/a
1908 68 42 0.00 0.0
1907 n/a n/a n/a n/a
1906 76 46 0.00 n/a
1905 67 36 0.00 0.0
1904 94 48 0.00 0.0
1903 n/a n/a n/a n/a
1902 n/a n/a n/a n/a
1901 n/a n/a n/a n/a
1900 n/a n/a n/a n/a
1899 78 47 0.00 n/a
1898 80 47 0.00 n/a
1897 73 43 0.00 n/a
1896 84 42 0.00 n/a
1895 69 55 0.00 n/a
1894 80 48 0.00 n/a
What's the all-time high for Kennewick on 5/21?
For the date of May 21, the highest temperature ever reached in Kennewick history is 95 °F which has happened 2 times, most recently in 1928.
Highest Temperatures in Kennewick on May 21
Rank Temperature Year
1 95 °F 1928
1 95 °F 1919
3 94 °F 1904
4 92 °F 1963
4 92 °F 1958
6 91 °F 2000
6 91 °F 1967
8 90 °F 1983
8 90 °F 1940
8 90 °F 1935
8 90 °F 1942
8 90 °F 1924
8 90 °F 1929
What's the all-time low for Kennewick on 5/21?
For the date of May 21, the lowest temperature ever reached in Kennewick history is 33 °F which happened in 2009.
Lowest Temperatures in Kennewick on May 21
Rank Temperature Year
1 33 °F 2009
2 34 °F 2010
3 36 °F 1905
3 36 °F 1934
5 37 °F 1974
5 37 °F 1931
7 38 °F 1918
8 39 °F 2001
8 39 °F 1910
8 39 °F 1973
Lowest High Temperatures in Kennewick on May 21
Rank Temperature Year
1 61 °F 1960
1 61 °F 2010
3 62 °F 1932
4 63 °F 2019
5 65 °F 1930
6 66 °F 1998
6 66 °F 1953
8 67 °F 1905
8 67 °F 2013
10 68 °F 1986
10 68 °F 1987
10 68 °F 1984
10 68 °F 1927
10 68 °F 1922
10 68 °F 1908
10 68 °F 2016
10 68 °F 2005
10 68 °F 1909
What's the most it has ever rained in Kennewick on 5/21?
For the date of May 21, the most precipitation ever recorded in Kennewick history is 0.81 inches which happened in 1972.
All-Time Most Precipitation in Kennewick on May 21
Rank Precipitation Year
1 0.81 inches 1972
2 0.52 inches 1986
3 0.51 inches 2016
4 0.23 inches 2004
5 0.20 inches 2012
6 0.18 inches 2013
7 0.10 inches 2005
8 0.07 inches 1912
8 0.07 inches 1932
10 0.06 inches 2006
10 0.06 inches 1993
Weather Station Details
Years Station Coordinates
1999–2024 Pasco Tri Cities Airport location
1894–1998 Kennewick location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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