Corvallis, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 18° 35° -26° (1974) 64° (2005) 0.71" NA
February 21° 42° -30° (1989) 70° (1995) 0.54" NA
March 27° 51° -11° (1989) 78° (2004) 0.68" NA
April 32° 61° 9° (1977) 88° (1987) 0.99" NA
May 38° 69° 17° (1972) 95° (1986) 1.72" NA
June 45° 77° 29° (1984) 97° (2003) 1.62" NA
July 49° 84° 31° (1971) 104° (2007) 0.94" NA
August 48° 84° 27° (1992) 101° (1998) 1.14" NA
September 40° 73° 18° (2000) 96° (1967) 1.03" NA
October 32° 60° -1° (2002) 86° (2001) 0.77" NA
November 24° 44° -14° (1993) 76° (1999) 0.8" NA
December 17° 35° -32° (1983) 63° (1975) 0.75" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 20° 37° -8° (1985) 57° (1972) 0.03" NA
Dec 2 20° 37° -9° (1985) 52° (1972) 0.03" NA
Dec 3 19° 37° -1° (1972) 61° (1975) 0.03" NA
Dec 4 19° 36° -18° (1972) 59° (1965) 0.03" NA
Dec 5 19° 36° -22° (1972) 54° (1965) 0.03" NA
Dec 6 19° 36° -17° (1972) 61° (1987) 0.03" NA
Dec 7 18° 36° -10° (1978) 58° (1987) 0.03" NA
Dec 8 18° 36° -22° (1972) 57° (1979) 0.03" NA
Dec 9 18° 35° -26° (1972) 63° (1975) 0.03" NA
Dec 10 18° 35° -24° (1972) 55° (1993) 0.03" NA
Dec 11 17° 35° -14° (1972) 58° (1980) 0.03" NA
Dec 12 17° 35° -8° (2000) 55° (1988) 0.03" NA
Dec 13 17° 35° -6° (1972) 55° (1988) 0.03" NA
Dec 14 17° 35° -3° (1972) 55° (1979) 0.02" NA
Dec 15 17° 34° -5° (1972) 60° (1980) 0.02" NA
Dec 16 17° 34° -2° (1967) 57° (1966) 0.02" NA
Dec 17 17° 34° -1° (1984) 59° (1980) 0.02" NA
Dec 18 17° 34° -4° (1983) 54° (1966) 0.02" NA
Dec 19 17° 34° -13° (1990) 56° (1966) 0.02" NA
Dec 20 16° 34° -23° (1990) 56° (1994) 0.02" NA
Dec 21 16° 34° -26° (1990) 50° (1974) 0.02" NA
Dec 22 16° 34° -28° (1983) 52° (1971) 0.02" NA
Dec 23 16° 34° -32° (1983) 50° (1967) 0.02" NA
Dec 24 16° 34° -29° (1983) 48° (1979) 0.02" NA
Dec 25 16° 34° -15° (1983) 49° (1980) 0.02" NA
Dec 26 16° 33° -7° (1996) 60° (1980) 0.02" NA
Dec 27 16° 33° -8° (1983) 58° (1980) 0.02" NA
Dec 28 16° 33° -15° (1983) 54° (1965) 0.02" NA
Dec 29 16° 33° -28° (1990) 51° (1965) 0.02" NA
Dec 30 16° 33° -26° (1990) 51° (1997) 0.02" NA
Dec 31 16° 33° -21° (1978) 48° (1996) 0.02" NA
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