Valley, Washington
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 19° 34° -38° (1950) 55° (1953) 2.28" 14.6"
February 23° 41° -36° (1950) 62° (1995) 1.97" 5.4"
March 28° 52° -12° (1951) 75° (1994) 2.05" 2.3"
April 33° 61° 17° (1979) 91° (1987) 1.62" 0.1"
May 40° 70° 16° (1954) 100° (1986) 2.14" 0"
June 46° 77° 26° (1952) 106° (1992) 1.76" 0"
July 49° 85° 31° (1962) 107° (2006) 1.2" 0"
August 48° 86° 29° (1973) 110° (1961) 1.01" 0"
September 39° 76° 19° (1950) 104° (1988) 1.02" 0"
October 31° 61° 5° (2002) 92° (1992) 1.21" 0.1"
November 27° 43° -19° (1985) 69° (1949) 2.72" 4.5"
December 20° 34° -29° (1978) 58° (1980) 2.92" 15.9"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 44° 82° 30° (1959) 101° (1967) 0.03" NA
Sep 2 44° 82° 28° (1959) 104° (1988) 0.03" NA
Sep 3 43° 82° 26° (1956) 103° (1988) 0.03" NA
Sep 4 43° 81° 28° (1956) 99° (1988) 0.03" NA
Sep 5 43° 81° 25° (1956) 101° (1988) 0.04" NA
Sep 6 42° 80° 27° (1956) 97° (1955) 0.04" NA
Sep 7 42° 80° 28° (1992) 96° (1990) 0.04" NA
Sep 8 42° 79° 22° (1962) 96° (1958) 0.04" NA
Sep 9 41° 79° 25° (1959) 96° (1981) 0.04" NA
Sep 10 41° 79° 27° (1959) 94° (1963) 0.04" NA
Sep 11 41° 78° 27° (1964) 96° (1987) 0.04" NA
Sep 12 40° 78° 22° (1970) 96° (1990) 0.04" NA
Sep 13 40° 77° 23° (1949) 93° (1988) 0.04" NA
Sep 14 40° 77° 23° (1961) 93° (1948) 0.04" NA
Sep 15 39° 77° 21° (1970) 93° (1957) 0.04" NA
Sep 16 39° 76° 21° (1970) 95° (1981) 0.04" NA
Sep 17 39° 76° 23° (1965) 97° (1981) 0.03" NA
Sep 18 38° 75° 26° (1971) 100° (1981) 0.03" NA
Sep 19 38° 75° 23° (1957) 93° (1952) 0.03" NA
Sep 20 38° 74° 24° (1958) 93° (1979) 0.03" NA
Sep 21 38° 74° 23° (1960) 91° (1987) 0.03" NA
Sep 22 37° 74° 20° (1956) 94° (1987) 0.03" NA
Sep 23 37° 73° 23° (2000) 96° (1987) 0.03" NA
Sep 24 37° 73° 22° (1970) 94° (1990) 0.03" NA
Sep 25 36° 72° 21° (1970) 90° (1952) 0.03" NA
Sep 26 36° 72° 25° (1955) 94° (1952) 0.03" NA
Sep 27 36° 71° 23° (1961) 91° (1952) 0.03" NA
Sep 28 35° 71° 19° (1950) 89° (1949) 0.03" NA
Sep 29 35° 71° 22° (1999) 88° (1967) 0.03" NA
Sep 30 35° 70° 22° (1984) 87° (1992) 0.03" NA
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