Ahtanum, Washington
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 23° 39° -21° (1950) 68° (1977) 1.15" 5.3"
February 26° 47° -25° (1950) 69° (1947) 0.81" 2.6"
March 30° 56° -1° (1960) 80° (1960) 0.62" 0.7"
April 34° 64° 18° (2008) 92° (1977) 0.55" 0"
May 42° 72° 25° (1999) 102° (1986) 0.58" 0"
June 48° 80° 30° (1984) 105° (1992) 0.62" 0"
July 53° 88° 34° (1971) 109° (2006) 0.22" 0"
August 52° 87° 35° (1960) 110° (1971) 0.26" 0"
September 44° 78° 24° (1985) 100° (1988) 0.36" 0"
October 34° 64° 4° (2002) 88° (1992) 0.54" 0.1"
November 27° 48° -13° (1985) 73° (1989) 1.05" 3.6"
December 21° 36° -17° (1964) 67° (1980) 1.53" 9.7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 23° 40° 5° (2006) 67° (1972) 0.05" 0.3"
Dec 2 23° 39° 3° (2006) 64° (1975) 0.05" 0.3"
Dec 3 23° 39° -1° (1985) 61° (1982) 0.05" 0.3"
Dec 4 23° 39° 2° (1984) 62° (2007) 0.05" 0.3"
Dec 5 22° 38° 1° (1984) 58° (1991) 0.05" 0.3"
Dec 6 22° 38° 0° (1984) 55° (1999) 0.05" 0.2"
Dec 7 22° 37° -2° (1956) 58° (1973) 0.04" 0.3"
Dec 8 22° 37° -7° (1972) 53° (1991) 0.05" 0.3"
Dec 9 22° 37° -3° (2009) 57° (1991) 0.05" 0.3"
Dec 10 21° 36° -5° (1972) 64° (1946) 0.04" 0.4"
Dec 11 21° 36° -3° (2009) 59° (2004) 0.05" 0.3"
Dec 12 21° 36° -8° (1972) 56° (1956) 0.05" 0.3"
Dec 13 21° 36° -8° (1972) 57° (1946) 0.04" 0.3"
Dec 14 21° 35° -8° (1972) 57° (1979) 0.05" 0.3"
Dec 15 21° 35° 2° (2008) 62° (1959) 0.05" 0.3"
Dec 16 21° 35° -15° (1964) 62° (1999) 0.05" 0.3"
Dec 17 21° 35° -17° (1964) 56° (1990) 0.06" 0.4"
Dec 18 21° 35° -10° (1984) 55° (1974) 0.05" 0.3"
Dec 19 21° 35° -9° (1984) 51° (2004) 0.05" 0.4"
Dec 20 21° 34° -7° (1984) 61° (1994) 0.06" 0.3"
Dec 21 21° 34° -9° (1990) 57° (1974) 0.05" 0.3"
Dec 22 21° 34° -10° (1983) 56° (1949) 0.05" 0.4"
Dec 23 21° 34° -13° (1983) 55° (1950) 0.06" 0.3"
Dec 24 21° 34° -1° (1990) 53° (1978) 0.05" 0.3"
Dec 25 21° 34° 3° (2008) 60° (1972) 0.05" 0.4"
Dec 26 21° 34° -5° (1988) 67° (1980) 0.05" 0.3"
Dec 27 21° 34° -2° (1948) 62° (1980) 0.05" 0.3"
Dec 28 21° 35° -7° (1996) 57° (1949) 0.05" 0.3"
Dec 29 21° 35° -16° (1990) 59° (1998) 0.04" 0.3"
Dec 30 21° 35° -10° (1968) 51° (1950) 0.05" 0.3"
Dec 31 21° 35° -7° (1978) 55° (1954) 0.04" 0.3"
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