Kennewick September 15 Weather Records

Daily averages and all-time records for weather in Kennewick, Washington for the date of September 15.
September 15 All-Time Records
1894–2024
Highest temperature 96 °F 1938
Lowest temperature 32 °F 1921
Lowest daily high 56 °F 1959
Highest daily low 67 °F 2000
Most precipitation 0.60 inches 1959
September 15 Average Weather
1991–2020 1
Average high 81.0 °F
Average low 48.9 °F
Chance precipitation 9.4%
Kennewick September 15 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 91 48 0.00 n/a
2022 82 49 0.00 n/a
2021 82 54 0.00 n/a
2020 77 50 0.00 n/a
2019 81 52 0.00 n/a
2018 76 46 0.00 0.0
2017 76 45 0.00 0.0
2016 86 43 0.00 0.0
2015 68 46 0.00 0.0
2014 84 42 0.00 0.0
2013 94 57 0.27 0.0
2012 89 49 0.00 0.0
2011 79 58 0.00 n/a
2010 82 47 0.00 n/a
2009 84 58 0.00 n/a
2008 84 41 0.00 n/a
2007 84 60 0.00 n/a
2006 65 46 0.01 n/a
2005 79 53 0.00 n/a
2004 78 57 0.03 n/a
2003 75 47 0.00 n/a
2002 89 52 0.00 n/a
2001 93 48 0.00 n/a
2000 89 67 0.00 n/a
1999 92 44 0.00 n/a
1998 90 57 0.00 0.0
1997 74 58 0.03 0.0
1996 77 58 0.13 0.0
1995 89 57 0.00 0.0
1994 81 55 0.00 0.0
1993 71 49 0.00 0.0
1992 62 45 0.07 0.0
1991 76 46 0.00 0.0
1990 87 58 0.00 0.0
1989 88 48 0.00 0.0
1988 90 52 0.00 0.0
1987 85 55 0.00 0.0
1986 70 48 0.00 0.0
1985 74 52 0.01 0.0
1984 79 48 0.01 0.0
1983 83 47 0.00 0.0
1982 70 45 0.00 0.0
1981 90 50 0.00 0.0
1980 79 53 0.00 0.0
1979 88 52 0.00 0.0
1978 76 52 0.00 0.0
1977 80 49 0.00 0.0
1976 76 49 0.00 0.0
1975 94 55 0.00 0.0
1974 89 41 0.00 0.0
1973 71 46 0.00 0.0
1972 90 43 0.00 0.0
1971 75 40 0.00 0.0
1970 69 34 0.00 0.0
1969 73 39 0.00 0.0
1968 73 n/a 0.00 0.0
1967 90 50 0.00 0.0
1966 76 53 0.00 0.0
1965 70 57 0.05 n/a
1964 80 53 0.00 0.0
1963 72 52 0.06 0.0
1962 75 45 0.00 0.0
1961 81 60 0.00 0.0
1960 82 52 0.00 0.0
1959 56 51 0.60 0.0
1958 78 56 0.00 0.0
1957 88 46 0.00 0.0
1956 87 46 0.00 0.0
1955 68 48 0.00 0.0
1954 77 56 0.07 0.0
1953 94 51 0.00 0.0
1952 79 40 0.00 0.0
1951 88 57 0.00 0.0
1950 78 37 0.00 0.0
1949 70 59 0.19 0.0
1948 72 55 0.00 0.0
1947 85 47 0.00 0.0
1946 69 52 0.16 0.0
1945 80 57 0.06 0.0
1944 75 50 0.00 0.0
1943 90 42 0.00 0.0
1942 80 56 0.00 n/a
1941 74 45 0.00 n/a
1940 83 53 0.00 n/a
1939 83 50 n/a n/a
1938 96 49 0.00 n/a
1937 89 55 n/a n/a
1936 65 36 n/a n/a
1935 75 57 n/a n/a
1934 80 38 0.00 0.0
1933 73 54 0.00 0.0
1932 84 51 n/a n/a
1931 76 56 0.00 n/a
1930 82 55 0.00 n/a
1929 85 51 n/a n/a
1928 75 44 0.00 n/a
1927 70 40 0.00 n/a
1926 70 55 0.00 n/a
1925 77 58 0.00 n/a
1924 86 60 0.00 n/a
1923 85 51 0.00 n/a
1922 89 49 0.00 n/a
1921 74 32 0.00 0.0
1920 78 44 0.00 n/a
1919 84 46 0.00 n/a
1918 83 53 0.00 n/a
1917 86 47 0.00 0.0
1916 82 43 0.00 0.0
1915 79 53 0.00 n/a
1914 65 49 0.00 0.0
1913 83 43 0.00 n/a
1912 81 38 0.00 n/a
1911 73 50 n/a n/a
1910 83 42 0.00 n/a
1909 n/a n/a n/a n/a
1908 80 55 0.00 n/a
1907 72 50 0.00 n/a
1906 64 52 0.00 n/a
1905 77 45 0.00 n/a
1904 89 40 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 82 50 0.00 n/a
1898 80 45 0.00 n/a
1897 78 44 0.00 n/a
1896 72 55 0.00 n/a
1895 71 52 0.00 n/a
1894 76 45 n/a n/a
What's the all-time high for Kennewick on 9/15?
For the date of Sep 15, the highest temperature ever reached in Kennewick history is 96 °F which happened in 1938.
Highest Temperatures in Kennewick on September 15
Rank Temperature Year
1 96 °F 1938
2 94 °F 1953
2 94 °F 1975
2 94 °F 2013
5 93 °F 2001
6 92 °F 1999
7 91 °F 2023
8 90 °F 1988
8 90 °F 1967
8 90 °F 1998
8 90 °F 1943
8 90 °F 1972
8 90 °F 1981
What's the all-time low for Kennewick on 9/15?
For the date of Sep 15, the lowest temperature ever reached in Kennewick history is 32 °F which happened in 1921.
Lowest Temperatures in Kennewick on September 15
Rank Temperature Year
1 32 °F 1921
2 34 °F 1970
3 36 °F 1936
4 37 °F 1950
5 38 °F 1912
5 38 °F 1934
7 39 °F 1969
8 40 °F 1952
8 40 °F 1904
8 40 °F 1971
8 40 °F 1927
Lowest High Temperatures in Kennewick on September 15
Rank Temperature Year
1 56 °F 1959
2 62 °F 1992
3 64 °F 1906
4 65 °F 1936
4 65 °F 1914
4 65 °F 2006
7 68 °F 1955
7 68 °F 2015
9 69 °F 1946
9 69 °F 1970
What's the most it has ever rained in Kennewick on 9/15?
For the date of Sep 15, the most precipitation ever recorded in Kennewick history is 0.60 inches which happened in 1959.
All-Time Most Precipitation in Kennewick on September 15
Rank Precipitation Year
1 0.60 inches 1959
2 0.27 inches 2013
3 0.19 inches 1949
4 0.16 inches 1946
5 0.13 inches 1996
6 0.07 inches 1954
6 0.07 inches 1992
8 0.06 inches 1945
8 0.06 inches 1963
10 0.05 inches 1965
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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