Kennewick, Washington
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 29° 42° -19° (1950) 69° (2003) 1.08" 0.6"
February 31° 48° -23° (1950) 74° (1995) 0.81" 0"
March 36° 58° 10° (1955) 82° (1960) 0.73" 0"
April 42° 66° 22° (1952) 91° (1987) 0.56" 0"
May 50° 75° 30° (1986) 104° (1983) 0.64" 0"
June 56° 82° 38° (1975) 107° (1992) 0.51" 0"
July 62° 90° 42° (1971) 109° (2006) 0.22" 0"
August 61° 89° 41° (1965) 110° (1998) 0.18" 0"
September 52° 80° 30° (1983) 100° (1987) 0.3" 0"
October 42° 66° 17° (1971) 89° (1988) 0.6" 0"
November 36° 51° -8° (1985) 79° (1999) 1" 0.1"
December 29° 40° -7° (1983) 69° (2007) 1.13" 0.4"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 45° 70° 30° (1954) 92° (1998) 0.02" 0"
May 2 46° 71° 30° (1954) 89° (1998) 0.01" 0"
May 3 46° 71° 36° (1974) 91° (1966) 0.02" 0"
May 4 46° 71° 30° (1982) 94° (1966) 0.02" 0"
May 5 46° 72° 32° (1982) 95° (1966) 0.02" 0"
May 6 47° 72° 32° (1959) 93° (1966) 0.02" 0"
May 7 47° 72° 30° (1986) 95° (1992) 0.01" 0"
May 8 47° 72° 35° (2002) 97° (1987) 0.02" 0"
May 9 48° 73° 36° (1996) 98° (1987) 0.02" 0"
May 10 48° 73° 37° (2006) 95° (1987) 0.02" 0"
May 11 48° 73° 35° (1973) 97° (1949) 0.02" 0"
May 12 48° 74° 34° (1985) 97° (1949) 0.02" 0"
May 13 49° 74° 37° (1956) 100° (1993) 0.02" 0"
May 14 49° 74° 30° (1955) 96° (1973) 0.02" 0"
May 15 49° 74° 39° (1960) 93° (1973) 0.02" 0"
May 16 50° 75° 33° (1986) 93° (1973) 0.02" 0"
May 17 50° 75° 37° (1981) 97° (2006) 0.02" 0"
May 18 50° 75° 36° (1966) 98° (2006) 0.02" 0"
May 19 51° 76° 37° (1974) 98° (2006) 0.02" 0"
May 20 51° 76° 36° (1974) 92° (1958) 0.02" 0"
May 21 51° 76° 37° (1974) 92° (1958) 0.02" 0"
May 22 51° 76° 41° (1966) 95° (1951) 0.02" 0"
May 23 52° 76° 35° (1964) 95° (1969) 0.02" 0"
May 24 52° 77° 39° (1975) 100° (2001) 0.03" 0"
May 25 52° 77° 37° (1964) 95° (1983) 0.02" 0"
May 26 52° 77° 40° (1964) 99° (1958) 0.03" 0"
May 27 53° 77° 39° (1973) 95° (1986) 0.02" 0"
May 28 53° 78° 39° (1955) 96° (1972) 0.03" 0"
May 29 53° 78° 36° (1951) 103° (1983) 0.02" 0"
May 30 53° 78° 40° (1952) 104° (1983) 0.03" 0"
May 31 53° 78° 40° (1955) 103° (1986) 0.02" 0"
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