Kennewick, Washington
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 28° 40° -19° (1950) 69° (2003) 1.05" NA
February 31° 48° -23° (1950) 74° (1995) 0.79" NA
March 36° 58° 10° (1955) 82° (1960) 0.77" NA
April 42° 66° 22° (1952) 91° (1987) 0.52" NA
May 49° 74° 30° (1986) 104° (1983) 0.65" NA
June 56° 82° 38° (1975) 107° (1992) 0.38" NA
July 61° 89° 42° (1971) 109° (2006) 0.25" NA
August 61° 89° 41° (1965) 110° (1998) 0.39" NA
September 52° 80° 30° (1983) 100° (1987) 0.37" NA
October 42° 66° 17° (1971) 89° (1988) 0.6" NA
November 36° 50° -8° (1985) 79° (1999) 1.08" NA
December 29° 41° -7° (1983) 69° (2007) 1.16" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 57° 85° 44° (1973) 100° (1967) 0.02" NA
Sep 2 57° 85° 44° (1959) 100° (1987) 0.01" NA
Sep 3 56° 84° 41° (1958) 99° (1998) 0.01" NA
Sep 4 56° 84° 42° (1956) 98° (1998) 0.01" NA
Sep 5 56° 83° 42° (1956) 97° (1973) 0.01" NA
Sep 6 55° 83° 41° (1948) 98° (1998) 0.01" NA
Sep 7 55° 83° 41° (1960) 96° (2003) 0.01" NA
Sep 8 54° 82° 43° (1960) 93° (1987) 0.01" NA
Sep 9 54° 82° 41° (1959) 97° (1981) 0.01" NA
Sep 10 54° 82° 42° (1970) 94° (1987) 0.01" NA
Sep 11 53° 81° 42° (1970) 98° (1973) 0.01" NA
Sep 12 53° 81° 37° (1949) 93° (1953) 0.01" NA
Sep 13 53° 81° 38° (1949) 92° (2002) 0.01" NA
Sep 14 52° 80° 36° (1952) 92° (1981) 0.01" NA
Sep 15 52° 80° 34° (1970) 94° (1953) 0.01" NA
Sep 16 52° 79° 34° (1970) 92° (1989) 0.01" NA
Sep 17 51° 79° 32° (1965) 93° (1998) 0.01" NA
Sep 18 51° 79° 32° (1965) 93° (1981) 0.01" NA
Sep 19 51° 78° 32° (1957) 97° (1981) 0.01" NA
Sep 20 50° 78° 37° (1983) 90° (1967) 0.01" NA
Sep 21 50° 77° 37° (1949) 94° (1967) 0.01" NA
Sep 22 50° 77° 34° (1955) 90° (1966) 0.01" NA
Sep 23 49° 77° 37° (1956) 91° (1999) 0.01" NA
Sep 24 49° 76° 36° (1955) 90° (1999) 0.01" NA
Sep 25 48° 76° 32° (1970) 92° (2001) 0.02" NA
Sep 26 48° 75° 32° (1972) 92° (1952) 0.02" NA
Sep 27 48° 75° 32° (1972) 89° (1994) 0.02" NA
Sep 28 47° 75° 34° (1983) 88° (1994) 0.02" NA
Sep 29 47° 74° 30° (1983) 87° (1996) 0.02" NA
Sep 30 47° 74° 31° (1983) 87° (1980) 0.02" NA
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