Harrison, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 12° 32° -33° (1963) 58° (1971) 0.63" NA
February 16° 37° -38° (1989) 63° (1995) 0.68" NA
March 22° 43° -23° (1960) 71° (1966) 1.43" NA
April 29° 51° -5° (1975) 78° (1987) 1.96" NA
May 37° 60° 15° (1967) 84° (1960) 3.02" NA
June 44° 68° 23° (1969) 90° (1990) 2.38" NA
July 49° 76° 28° (1977) 96° (1960) 1.63" NA
August 48° 76° 27° (1965) 97° (1961) 1.51" NA
September 40° 66° 10° (1965) 89° (1967) 1.71" NA
October 31° 55° -5° (1991) 85° (1979) 1.42" NA
November 20° 40° -31° (1959) 71° (1975) 0.91" NA
December 13° 33° -35° (1990) 60° (1975) 0.59" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 16° 35° -20° (1985) 52° (1972) 0.02" NA
Dec 2 16° 35° -10° (1985) 52° (1975) 0.02" NA
Dec 3 15° 35° -8° (1972) 55° (1987) 0.02" NA
Dec 4 15° 35° -17° (1972) 57° (1965) 0.02" NA
Dec 5 15° 34° -22° (1972) 51° (1987) 0.02" NA
Dec 6 15° 34° -24° (1972) 56° (1965) 0.02" NA
Dec 7 15° 34° -25° (1972) 59° (1987) 0.02" NA
Dec 8 14° 34° -27° (1972) 56° (1990) 0.02" NA
Dec 9 14° 34° -12° (1977) 60° (1975) 0.02" NA
Dec 10 14° 34° -23° (1961) 55° (1990) 0.02" NA
Dec 11 14° 34° -24° (1961) 58° (1980) 0.02" NA
Dec 12 14° 33° -10° (1961) 51° (1980) 0.02" NA
Dec 13 14° 33° -10° (1963) 49° (1988) 0.02" NA
Dec 14 14° 33° -10° (1967) 53° (1969) 0.02" NA
Dec 15 13° 33° -12° (1967) 58° (1980) 0.02" NA
Dec 16 13° 33° -29° (1964) 59° (1980) 0.02" NA
Dec 17 13° 33° -35° (1964) 55° (1980) 0.02" NA
Dec 18 13° 33° -10° (1964) 51° (1988) 0.02" NA
Dec 19 13° 33° -26° (1990) 50° (1981) 0.02" NA
Dec 20 13° 33° -30° (1990) 48° (1966) 0.02" NA
Dec 21 13° 33° -29° (1990) 57° (1994) 0.01" NA
Dec 22 13° 33° -34° (1990) 49° (1964) 0.01" NA
Dec 23 13° 32° -17° (1990) 51° (1963) 0.01" NA
Dec 24 12° 32° -15° (1962) 50° (1963) 0.02" NA
Dec 25 12° 32° -14° (1962) 50° (1980) 0.02" NA
Dec 26 12° 32° -15° (1996) 58° (1980) 0.02" NA
Dec 27 12° 32° -9° (1988) 58° (1980) 0.02" NA
Dec 28 12° 32° -20° (1990) 48° (1976) 0.02" NA
Dec 29 12° 32° -35° (1990) 51° (1997) 0.02" NA
Dec 30 12° 32° -30° (1978) 54° (1980) 0.02" NA
Dec 31 12° 32° -26° (1978) 53° (1963) 0.02" NA
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