Kennewick August 20 Weather Records

Daily averages and all-time records for weather in Kennewick, Washington for the date of August 20.
August 20 All-Time Records
1894–2024
Highest temperature 106 °F 1977
Lowest temperature 42 °F 1945
Lowest daily high 72 °F 2007
Highest daily low 74 °F 2022
Most precipitation 0.45 inches 1918
August 20 Average Weather
1991–2020 1
Average high 89.7 °F
Average low 56.3 °F
Chance precipitation 6.7%
Kennewick August 20 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 83 51 0.00 n/a
2022 100 74 0.00 n/a
2021 83 57 0.00 n/a
2020 95 66 0.00 n/a
2019 96 53 0.00 n/a
2018 89 54 0.00 0.0
2017 86 50 0.00 0.0
2016 97 50 0.00 0.0
2015 95 57 0.00 0.0
2014 87 62 0.00 0.0
2013 89 55 0.00 0.0
2012 96 67 0.00 0.0
2011 94 50 0.00 n/a
2010 88 56 0.00 n/a
2009 100 59 0.00 n/a
2008 78 63 0.18 n/a
2007 72 56 0.03 n/a
2006 98 52 0.00 n/a
2005 96 50 0.00 n/a
2004 100 63 0.00 n/a
2003 90 52 0.00 n/a
2002 83 59 0.00 n/a
2001 88 45 0.00 n/a
2000 79 45 0.00 n/a
1999 95 53 0.00 n/a
1998 87 58 0.00 0.0
1997 92 64 0.00 0.0
1996 84 53 0.00 0.0
1995 87 56 0.00 0.0
1994 87 63 0.00 0.0
1993 91 65 0.00 0.0
1992 94 64 0.00 0.0
1991 100 67 0.00 0.0
1990 73 57 0.02 0.0
1989 87 64 0.00 0.0
1988 88 54 0.00 0.0
1987 90 57 0.00 0.0
1986 92 62 0.00 0.0
1985 82 56 0.00 0.0
1984 85 51 0.00 0.0
1983 89 63 0.00 0.0
1982 90 63 0.00 0.0
1981 84 54 0.00 0.0
1980 85 53 0.00 0.0
1979 80 60 0.12 0.0
1978 n/a n/a n/a n/a
1977 106 61 0.00 0.0
1976 85 63 0.00 0.0
1975 84 55 0.00 0.0
1974 79 56 0.00 0.0
1973 91 45 0.00 0.0
1972 90 57 0.00 0.0
1971 92 69 0.00 0.0
1970 90 55 0.00 0.0
1969 91 60 0.00 0.0
1968 75 51 0.08 0.0
1967 103 59 0.00 0.0
1966 84 54 0.00 0.0
1965 82 59 0.00 n/a
1964 83 52 0.00 0.0
1963 78 58 0.00 0.0
1962 93 57 0.00 0.0
1961 97 73 0.00 0.0
1960 84 56 0.00 0.0
1959 73 55 0.04 0.0
1958 n/a 53 0.00 0.0
1957 87 58 0.00 0.0
1956 95 54 0.00 0.0
1955 87 59 0.00 0.0
1954 78 60 0.11 0.0
1953 n/a n/a 0.00 0.0
1952 83 46 0.00 0.0
1951 96 64 0.00 0.0
1950 96 57 0.00 0.0
1949 90 55 0.00 0.0
1948 80 54 0.00 0.0
1947 74 55 0.00 0.0
1946 99 66 0.00 0.0
1945 88 42 0.00 0.0
1944 84 43 0.00 0.0
1943 82 52 0.00 0.0
1942 96 68 0.00 n/a
1941 99 60 0.00 n/a
1940 97 68 n/a n/a
1939 99 50 n/a n/a
1938 92 49 n/a n/a
1937 90 56 0.00 n/a
1936 87 52 n/a n/a
1935 84 47 0.00 n/a
1934 96 55 0.00 n/a
1933 79 54 0.00 0.0
1932 80 58 0.00 n/a
1931 88 57 0.00 n/a
1930 81 57 0.00 0.0
1929 91 44 n/a n/a
1928 88 53 n/a n/a
1927 89 65 0.00 n/a
1926 81 56 0.00 n/a
1925 98 58 0.00 n/a
1924 80 54 0.00 n/a
1923 85 60 0.11 n/a
1922 81 51 0.00 0.0
1921 94 46 0.00 0.0
1920 89 45 0.00 0.0
1919 93 55 0.00 n/a
1918 74 50 0.45 n/a
1917 93 68 0.00 0.0
1916 83 44 0.00 n/a
1915 91 57 0.00 0.0
1914 90 62 0.00 0.0
1913 98 58 0.00 n/a
1912 91 53 0.00 n/a
1911 87 47 0.00 n/a
1910 n/a n/a 0.00 0.0
1909 90 63 0.00 0.0
1908 103 68 0.00 n/a
1907 90 46 0.00 n/a
1906 88 66 0.00 n/a
1905 89 54 0.00 n/a
1904 81 51 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 75 56 0.00 n/a
1898 90 58 0.00 n/a
1897 106 60 0.00 n/a
1896 92 57 0.00 n/a
1895 91 60 0.02 n/a
1894 98 65 0.00 n/a
What's the all-time high for Kennewick on 8/20?
For the date of Aug 20, the highest temperature ever reached in Kennewick history is 106 °F which has happened 2 times, most recently in 1977.
Highest Temperatures in Kennewick on August 20
Rank Temperature Year
1 106 °F 1977
1 106 °F 1897
3 103 °F 1967
3 103 °F 1908
5 100 °F 2009
5 100 °F 2004
5 100 °F 2022
5 100 °F 1991
9 99 °F 1939
9 99 °F 1946
9 99 °F 1941
What's the all-time low for Kennewick on 8/20?
For the date of Aug 20, the lowest temperature ever reached in Kennewick history is 42 °F which happened in 1945.
Lowest Temperatures in Kennewick on August 20
Rank Temperature Year
1 42 °F 1945
2 43 °F 1944
3 44 °F 1929
3 44 °F 1916
5 45 °F 1920
5 45 °F 2001
5 45 °F 1973
5 45 °F 2000
9 46 °F 1921
9 46 °F 1907
9 46 °F 1952
Lowest High Temperatures in Kennewick on August 20
Rank Temperature Year
1 72 °F 2007
2 73 °F 1990
2 73 °F 1959
4 74 °F 1947
4 74 °F 1918
6 75 °F 1899
6 75 °F 1968
8 78 °F 2008
8 78 °F 1963
8 78 °F 1954
What's the most it has ever rained in Kennewick on 8/20?
For the date of Aug 20, the most precipitation ever recorded in Kennewick history is 0.45 inches which happened in 1918.
All-Time Most Precipitation in Kennewick on August 20
Rank Precipitation Year
1 0.45 inches 1918
2 0.18 inches 2008
3 0.12 inches 1979
4 0.11 inches 1954
4 0.11 inches 1923
6 0.08 inches 1968
7 0.04 inches 1959
8 0.03 inches 2007
9 0.02 inches 1895
9 0.02 inches 1990
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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