Helmville, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 29° -43° (1979) 55° (1989) 0.95" NA
February 35° -48° (1982) 63° (1995) 0.65" NA
March 18° 44° -24° (1989) 74° (2004) 0.55" NA
April 24° 55° 1° (1982) 83° (1987) 0.85" NA
May 31° 64° 14° (1999) 93° (1986) 1.76" NA
June 37° 72° 24° (1999) 95° (1988) 1.67" NA
July 40° 80° 28° (1994) 99° (2003) 1.15" NA
August 38° 80° 21° (1992) 98° (2003) 1.24" NA
September 30° 70° 9° (2000) 93° (1998) 0.99" NA
October 22° 57° -13° (1991) 88° (1992) 0.82" NA
November 15° 39° -23° (1985) 72° (1999) 0.96" NA
December 29° -45° (1983) 58° (1980) 0.99" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 34° 76° 24° (2006) 88° (1991) 0.04" NA
Sep 2 34° 75° 27° (2006) 91° (1998) 0.04" NA
Sep 3 34° 75° 25° (1981) 92° (1988) 0.04" NA
Sep 4 33° 74° 26° (1980) 89° (1988) 0.04" NA
Sep 5 33° 74° 24° (1992) 93° (1998) 0.04" NA
Sep 6 33° 73° 18° (1992) 92° (1988) 0.04" NA
Sep 7 32° 73° 19° (1992) 89° (1998) 0.04" NA
Sep 8 32° 72° 22° (1999) 91° (1998) 0.04" NA
Sep 9 32° 72° 22° (1976) 88° (1981) 0.04" NA
Sep 10 32° 72° 21° (1983) 87° (1981) 0.03" NA
Sep 11 31° 71° 19° (1989) 85° (1990) 0.03" NA
Sep 12 31° 71° 19° (1989) 90° (1990) 0.03" NA
Sep 13 31° 70° 21° (1984) 88° (2006) 0.03" NA
Sep 14 30° 70° 17° (1984) 84° (1987) 0.03" NA
Sep 15 30° 70° 21° (1982) 92° (2000) 0.03" NA
Sep 16 30° 69° 22° (1993) 86° (1979) 0.03" NA
Sep 17 29° 69° 18° (1978) 91° (2000) 0.03" NA
Sep 18 29° 68° 21° (1987) 91° (1981) 0.03" NA
Sep 19 29° 68° 21° (1999) 91° (1981) 0.03" NA
Sep 20 28° 68° 13° (1983) 80° (1994) 0.03" NA
Sep 21 28° 67° 15° (1983) 83° (1999) 0.03" NA
Sep 22 28° 67° 11° (2000) 84° (1987) 0.03" NA
Sep 23 28° 66° 9° (2000) 87° (1987) 0.03" NA
Sep 24 27° 66° 12° (2000) 89° (1987) 0.03" NA
Sep 25 27° 66° 15° (1984) 89° (1994) 0.03" NA
Sep 26 27° 65° 17° (2000) 89° (2001) 0.03" NA
Sep 27 27° 65° 19° (1992) 84° (1989) 0.03" NA
Sep 28 26° 65° 11° (1984) 84° (1994) 0.03" NA
Sep 29 26° 64° 12° (1984) 84° (1994) 0.03" NA
Sep 30 26° 64° 13° (1985) 83° (1989) 0.03" NA
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