Kennewick September 18 Weather Records

Daily averages and all-time records for weather in Kennewick, Washington for the date of September 18.
September 18 All-Time Records
1894–2024
Highest temperature 97 °F 1906
Lowest temperature 30 °F 1907
Lowest daily high 60 °F 1947
Highest daily low 67 °F 1898
Most precipitation 0.31 inches 1969
September 18 Average Weather
1991–2020 1
Average high 79.9 °F
Average low 48.2 °F
Chance precipitation 10.1%
Kennewick September 18 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 85 52 0.00 n/a
2022 73 53 0.00 n/a
2021 75 58 0.04 n/a
2020 77 49 0.03 n/a
2019 75 55 0.04 n/a
2018 75 39 0.00 0.0
2017 70 55 0.03 0.0
2016 79 50 0.00 0.0
2015 77 49 0.00 0.0
2014 88 56 0.00 0.0
2013 75 49 0.00 0.0
2012 90 44 0.00 0.0
2011 82 59 0.00 n/a
2010 74 58 0.26 n/a
2009 84 41 0.00 n/a
2008 90 50 0.00 n/a
2007 71 51 0.00 n/a
2006 75 49 0.07 n/a
2005 79 42 0.00 n/a
2004 71 48 0.00 n/a
2003 80 43 0.00 n/a
2002 79 40 0.00 n/a
2001 85 45 0.00 n/a
2000 91 56 0.00 n/a
1999 87 43 0.00 n/a
1998 89 61 0.00 0.0
1997 73 58 0.00 0.0
1996 72 46 0.00 0.0
1995 86 60 0.00 0.0
1994 86 56 0.00 0.0
1993 76 46 0.00 0.0
1992 73 41 0.00 0.0
1991 87 n/a 0.00 0.0
1990 79 50 0.00 0.0
1989 67 53 0.00 0.0
1988 67 44 0.00 0.0
1987 75 45 0.00 0.0
1986 71 51 0.03 0.0
1985 69 49 0.01 0.0
1984 91 51 0.00 0.0
1983 71 51 0.00 0.0
1982 84 n/a 0.00 0.0
1981 93 54 0.00 0.0
1980 91 58 0.00 0.0
1979 87 52 0.00 0.0
1978 62 37 0.00 0.0
1977 73 47 0.00 0.0
1976 80 58 0.00 0.0
1975 74 44 0.00 0.0
1974 90 45 0.00 0.0
1973 74 40 0.08 0.0
1972 74 45 0.00 0.0
1971 71 39 0.00 0.0
1970 80 63 0.00 0.0
1969 71 58 0.31 0.0
1968 75 57 0.30 0.0
1967 85 61 0.00 0.0
1966 78 59 0.00 0.0
1965 68 32 0.00 n/a
1964 68 44 0.00 0.0
1963 77 42 0.00 0.0
1962 90 50 0.00 0.0
1961 80 58 0.00 0.0
1960 88 53 0.00 0.0
1959 73 55 0.19 0.0
1958 79 54 0.00 0.0
1957 74 48 0.16 0.0
1956 82 49 0.00 0.0
1955 73 40 0.00 0.0
1954 71 50 0.00 0.0
1953 82 45 0.00 0.0
1952 89 50 0.00 0.0
1951 90 50 0.00 0.0
1950 81 39 0.00 0.0
1949 78 51 0.00 0.0
1948 73 55 0.00 0.0
1947 60 40 0.00 0.0
1946 71 39 0.00 0.0
1945 72 43 0.00 0.0
1944 76 48 0.00 0.0
1943 78 47 0.00 0.0
1942 75 38 0.00 n/a
1941 63 51 0.25 n/a
1940 79 56 0.05 n/a
1939 85 48 n/a n/a
1938 94 52 0.00 n/a
1937 87 49 0.00 n/a
1936 79 42 n/a n/a
1935 75 42 n/a n/a
1934 82 52 0.00 0.0
1933 71 54 0.00 0.0
1932 65 47 n/a n/a
1931 70 56 0.02 n/a
1930 83 58 0.00 n/a
1929 75 62 n/a n/a
1928 75 50 0.00 n/a
1927 77 46 0.00 n/a
1926 67 53 0.00 n/a
1925 68 57 0.00 n/a
1924 70 48 0.00 n/a
1923 83 46 0.00 n/a
1922 87 42 0.00 n/a
1921 70 49 0.00 0.0
1920 78 46 0.00 n/a
1919 85 54 0.00 n/a
1918 90 47 0.00 n/a
1917 89 53 0.00 0.0
1916 84 46 0.00 0.0
1915 86 46 0.00 n/a
1914 72 46 0.00 0.0
1913 87 54 0.00 n/a
1912 86 42 0.00 n/a
1911 n/a 45 n/a n/a
1910 81 43 0.00 n/a
1909 n/a n/a n/a n/a
1908 85 44 0.00 n/a
1907 71 30 0.00 n/a
1906 97 56 0.00 n/a
1905 81 53 0.00 n/a
1904 82 45 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 88 48 0.00 n/a
1898 92 67 0.00 n/a
1897 85 42 0.00 n/a
1896 72 41 0.00 n/a
1895 74 55 0.00 n/a
1894 84 47 n/a n/a
What's the all-time high for Kennewick on 9/18?
For the date of Sep 18, the highest temperature ever reached in Kennewick history is 97 °F which happened in 1906.
Highest Temperatures in Kennewick on September 18
Rank Temperature Year
1 97 °F 1906
2 94 °F 1938
3 93 °F 1981
4 92 °F 1898
5 91 °F 1984
5 91 °F 1980
5 91 °F 2000
8 90 °F 1962
8 90 °F 1918
8 90 °F 1974
8 90 °F 1951
8 90 °F 2008
8 90 °F 2012
What's the all-time low for Kennewick on 9/18?
For the date of Sep 18, the lowest temperature ever reached in Kennewick history is 30 °F which happened in 1907.
Lowest Temperatures in Kennewick on September 18
Rank Temperature Year
1 30 °F 1907
2 32 °F 1965
3 37 °F 1978
4 38 °F 1942
5 39 °F 1971
5 39 °F 2018
5 39 °F 1950
5 39 °F 1946
9 40 °F 1947
9 40 °F 1973
9 40 °F 2002
9 40 °F 1955
Lowest High Temperatures in Kennewick on September 18
Rank Temperature Year
1 60 °F 1947
2 62 °F 1978
3 63 °F 1941
4 65 °F 1932
5 67 °F 1926
5 67 °F 1989
5 67 °F 1988
8 68 °F 1925
8 68 °F 1965
8 68 °F 1964
What's the most it has ever rained in Kennewick on 9/18?
For the date of Sep 18, the most precipitation ever recorded in Kennewick history is 0.31 inches which happened in 1969.
All-Time Most Precipitation in Kennewick on September 18
Rank Precipitation Year
1 0.31 inches 1969
2 0.30 inches 1968
3 0.26 inches 2010
4 0.25 inches 1941
5 0.19 inches 1959
6 0.16 inches 1957
7 0.08 inches 1973
8 0.07 inches 2006
9 0.05 inches 1940
10 0.04 inches 2019
10 0.04 inches 2021
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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