Corvallis, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 19° 35° -26° (1974) 64° (2005) 0.73" NA
February 21° 40° -30° (1989) 70° (1995) 0.48" NA
March 27° 50° -11° (1989) 78° (2004) 0.7" NA
April 32° 57° 9° (1977) 88° (1987) 1.01" NA
May 39° 66° 17° (1972) 95° (1986) 1.63" NA
June 45° 74° 29° (1984) 97° (2003) 1.63" NA
July 50° 84° 31° (1971) 104° (2007) 0.88" NA
August 48° 82° 27° (1992) 101° (1998) 1" NA
September 41° 71° 18° (2000) 96° (1967) 1.05" NA
October 32° 57° -1° (2002) 86° (2001) 0.7" NA
November 24° 42° -14° (1993) 76° (1999) 0.75" NA
December 16° 32° -32° (1983) 63° (1975) 0.81" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 45° 77° 33° (1965) 96° (1967) 0.04" NA
Sep 2 44° 76° 32° (1974) 94° (1998) 0.04" NA
Sep 3 44° 76° 34° (1975) 95° (1988) 0.04" NA
Sep 4 44° 75° 30° (1969) 94° (1988) 0.04" NA
Sep 5 44° 75° 31° (1969) 91° (1998) 0.04" NA
Sep 6 43° 75° 32° (1969) 89° (1998) 0.03" NA
Sep 7 43° 74° 29° (1992) 91° (1998) 0.04" NA
Sep 8 43° 74° 28° (1976) 87° (1979) 0.04" NA
Sep 9 43° 73° 29° (1976) 90° (1981) 0.03" NA
Sep 10 42° 73° 30° (1983) 89° (1981) 0.04" NA
Sep 11 42° 73° 29° (1989) 88° (1990) 0.04" NA
Sep 12 42° 72° 28° (1989) 88° (1981) 0.03" NA
Sep 13 41° 72° 28° (1974) 88° (1996) 0.04" NA
Sep 14 41° 71° 24° (1970) 87° (2000) 0.03" NA
Sep 15 41° 71° 24° (1970) 88° (1998) 0.04" NA
Sep 16 40° 71° 29° (1965) 91° (2009) 0.03" NA
Sep 17 40° 70° 18° (1965) 87° (1981) 0.04" NA
Sep 18 40° 70° 21° (1965) 90° (1984) 0.03" NA
Sep 19 40° 69° 24° (1965) 89° (1984) 0.04" NA
Sep 20 39° 69° 19° (1983) 89° (1984) 0.03" NA
Sep 21 39° 69° 21° (1971) 90° (1967) 0.04" NA
Sep 22 39° 68° 18° (2000) 84° (1979) 0.03" NA
Sep 23 38° 68° 24° (2000) 85° (1999) 0.04" NA
Sep 24 38° 67° 24° (1996) 87° (2001) 0.03" NA
Sep 25 38° 67° 24° (1970) 88° (2001) 0.04" NA
Sep 26 37° 66° 23° (1972) 86° (1994) 0.03" NA
Sep 27 37° 66° 24° (1999) 86° (1994) 0.03" NA
Sep 28 37° 66° 20° (1999) 87° (2010) 0.02" NA
Sep 29 36° 65° 18° (1985) 83° (1993) 0.03" NA
Sep 30 36° 65° 18° (1985) 83° (1993) 0.03" NA
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