Helmville, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 30° -43° (1979) 55° (1989) 0.71" NA
February 34° -48° (1982) 63° (1995) 0.56" NA
March 19° 44° -24° (1989) 74° (2004) 0.58" NA
April 25° 54° 1° (1982) 83° (1987) 0.85" NA
May 32° 63° 14° (1999) 93° (1986) 1.68" NA
June 39° 71° 24° (1999) 95° (1988) 1.87" NA
July 42° 81° 28° (1994) 99° (2003) 1.14" NA
August 40° 80° 21° (1992) 98° (2003) 1.16" NA
September 32° 69° 9° (2000) 93° (1998) 1.11" NA
October 23° 56° -13° (1991) 88° (1992) 0.82" NA
November 16° 39° -23° (1985) 72° (1999) 1" NA
December 28° -45° (1983) 58° (1980) 0.86" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 36° 76° 24° (2006) 88° (1991) 0.04" NA
Sep 2 36° 75° 27° (2006) 91° (1998) 0.05" NA
Sep 3 36° 75° 25° (1981) 92° (1988) 0.04" NA
Sep 4 36° 74° 26° (1980) 89° (1988) 0.05" NA
Sep 5 35° 74° 24° (1992) 93° (1998) 0.04" NA
Sep 6 35° 74° 18° (1992) 92° (1988) 0.05" NA
Sep 7 35° 73° 19° (1992) 89° (1998) 0.04" NA
Sep 8 34° 73° 22° (1999) 91° (1998) 0.04" NA
Sep 9 34° 72° 22° (1976) 88° (1981) 0.04" NA
Sep 10 34° 72° 12° (2007) 87° (1981) 0.05" NA
Sep 11 33° 71° -6° (2007) 85° (1990) 0.04" NA
Sep 12 33° 71° 19° (1989) 90° (1990) 0.04" NA
Sep 13 33° 71° 21° (1984) 88° (2006) 0.04" NA
Sep 14 32° 70° 17° (1984) 84° (1987) 0.04" NA
Sep 15 32° 70° -21° (2007) 92° (2000) 0.04" NA
Sep 16 32° 69° -38° (2007) 86° (1979) 0.03" NA
Sep 17 31° 69° -44° (2007) 91° (2000) 0.04" NA
Sep 18 31° 68° 21° (1987) 91° (1981) 0.04" NA
Sep 19 31° 68° 21° (1999) 91° (1981) 0.03" NA
Sep 20 30° 68° -45° (2007) 86° (2009) 0.04" NA
Sep 21 30° 67° -51° (2007) 83° (1999) 0.03" NA
Sep 22 30° 67° 11° (2000) 84° (1987) 0.04" NA
Sep 23 29° 66° 9° (2000) 87° (1987) 0.03" NA
Sep 24 29° 66° 12° (2000) 89° (1987) 0.03" NA
Sep 25 29° 65° 15° (1984) 89° (1994) 0.03" NA
Sep 26 28° 65° 17° (2000) 89° (2001) 0.03" NA
Sep 27 28° 64° 19° (1992) 84° (1989) 0.02" NA
Sep 28 28° 64° 11° (1984) 84° (1994) 0.03" NA
Sep 29 27° 63° 12° (1984) 84° (1994) 0.03" NA
Sep 30 27° 63° 13° (1985) 83° (1989) 0.02" NA
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