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
May 1 33° 56° 15° (1967) 76° (1981) 0.09" NA
May 2 33° 56° 15° (1967) 77° (1985) 0.09" NA
May 3 34° 56° 20° (1967) 78° (1966) 0.09" NA
May 4 34° 56° 20° (1967) 81° (1966) 0.09" NA
May 5 34° 57° 20° (1977) 81° (1966) 0.09" NA
May 6 34° 57° 21° (1968) 81° (1966) 0.09" NA
May 7 35° 57° 24° (1979) 78° (1987) 0.09" NA
May 8 35° 57° 24° (1965) 78° (1987) 0.09" NA
May 9 35° 58° 26° (1968) 77° (1987) 0.1" NA
May 10 35° 58° 25° (1979) 74° (1960) 0.1" NA
May 11 36° 58° 17° (1967) 81° (1960) 0.1" NA
May 12 36° 58° 20° (1966) 84° (1960) 0.1" NA
May 13 36° 59° 25° (1974) 77° (1976) 0.1" NA
May 14 37° 59° 25° (1973) 77° (1978) 0.1" NA
May 15 37° 59° 25° (1966) 78° (1973) 0.1" NA
May 16 37° 60° 18° (1974) 81° (1988) 0.1" NA
May 17 37° 60° 21° (1966) 79° (1988) 0.1" NA
May 18 38° 60° 22° (1960) 77° (1976) 0.1" NA
May 19 38° 60° 26° (1997) 80° (1964) 0.1" NA
May 20 38° 61° 25° (1971) 82° (1964) 0.1" NA
May 21 38° 61° 24° (1973) 80° (1980) 0.1" NA
May 22 38° 61° 27° (1960) 80° (1967) 0.1" NA
May 23 39° 62° 25° (1966) 81° (1967) 0.1" NA
May 24 39° 62° 27° (1989) 80° (1985) 0.1" NA
May 25 39° 62° 28° (1975) 76° (1969) 0.1" NA
May 26 39° 62° 26° (1973) 81° (1979) 0.1" NA
May 27 40° 63° 27° (1973) 81° (1966) 0.1" NA
May 28 40° 63° 23° (1977) 79° (1969) 0.1" NA
May 29 40° 63° 19° (1977) 80° (1986) 0.1" NA
May 30 40° 63° 25° (1977) 81° (1986) 0.1" NA
May 31 40° 64° 28° (1982) 82° (1972) 0.1" NA
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