Ahtanum, Washington
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 21° 38° -21° (1950) 68° (1977) 1.17" 7"
February 25° 46° -25° (1950) 69° (1947) 0.8" 3.3"
March 29° 56° -1° (1960) 80° (1960) 0.7" 1.3"
April 33° 64° 20° (2007) 92° (1977) 0.53" 0"
May 40° 72° 25° (1999) 102° (1986) 0.51" 0"
June 46° 80° 30° (1984) 105° (1992) 0.62" 0"
July 51° 87° 34° (1971) 109° (2006) 0.22" 0"
August 50° 86° 35° (1960) 110° (1971) 0.36" 0"
September 42° 78° 24° (1985) 100° (1988) 0.39" 0"
October 33° 64° 4° (2002) 88° (1992) 0.53" 0.2"
November 26° 48° -13° (1985) 73° (1989) 1.05" 3.3"
December 20° 37° -17° (1964) 67° (1980) 1.38" 9.5"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Apr 1 31° 60° 20° (2007) 78° (2000) 0.02" NA
Apr 2 31° 61° 22° (2007) 80° (1992) 0.02" NA
Apr 3 31° 61° 21° (2007) 75° (2000) 0.02" NA
Apr 4 31° 61° 21° (2003) 78° (1960) 0.02" NA
Apr 5 31° 61° 22° (1975) 78° (1977) 0.02" NA
Apr 6 31° 62° 23° (1999) 81° (1977) 0.02" NA
Apr 7 32° 62° 23° (1975) 84° (1977) 0.02" NA
Apr 8 32° 62° 22° (2001) 79° (1996) 0.02" NA
Apr 9 32° 62° 22° (1972) 78° (1985) 0.02" NA
Apr 10 32° 63° 22° (1981) 80° (1949) 0.02" NA
Apr 11 32° 63° 23° (1954) 78° (1988) 0.02" NA
Apr 12 32° 63° 22° (1997) 81° (1988) 0.02" NA
Apr 13 33° 63° 20° (2005) 88° (1947) 0.02" NA
Apr 14 33° 64° 23° (2005) 88° (1947) 0.02" NA
Apr 15 33° 64° 22° (1955) 79° (1990) 0.02" NA
Apr 16 33° 64° 22° (1964) 82° (1949) 0.02" NA
Apr 17 33° 64° 21° (1964) 84° (1994) 0.02" NA
Apr 18 34° 65° 23° (1964) 84° (1952) 0.02" NA
Apr 19 34° 65° 23° (2007) 79° (1956) 0.02" NA
Apr 20 34° 65° 22° (1985) 84° (1956) 0.02" NA
Apr 21 34° 65° 20° (1985) 85° (1956) 0.02" NA
Apr 22 34° 66° 27° (1992) 80° (1962) 0.02" NA
Apr 23 35° 66° 25° (1992) 86° (1977) 0.02" NA
Apr 24 35° 66° 24° (2002) 92° (1977) 0.01" NA
Apr 25 35° 67° 25° (1955) 86° (1952) 0.01" NA
Apr 26 35° 67° 24° (1948) 82° (2001) 0.01" NA
Apr 27 35° 67° 25° (1999) 87° (1987) 0.01" NA
Apr 28 36° 68° 27° (1999) 89° (1987) 0.01" NA
Apr 29 36° 68° 24° (1952) 87° (1957) 0.01" NA
Apr 30 36° 68° 25° (1986) 87° (1998) 0.01" NA
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