Grass Range, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 14° 38° -40° (1969) 74° (1981) 0.61" 8.3"
February 16° 40° -34° (1996) 73° (1992) 0.41" 6.4"
March 23° 48° -32° (1960) 80° (1978) 1" 10.3"
April 31° 57° -5° (1986) 94° (1987) 1.56" 4.6"
May 40° 66° 6° (1954) 97° (1980) 3.13" 0.8"
June 47° 74° 27° (1969) 103° (1988) 2.95" 0"
July 53° 83° 31° (1994) 104° (1985) 1.85" 0"
August 51° 83° 29° (1992) 105° (1961) 1.54" 0"
September 42° 71° 15° (1985) 100° (1950) 1.19" 0.3"
October 33° 59° -9° (1991) 90° (1987) 1.05" 3"
November 22° 46° -26° (1955) 85° (1975) 0.63" 4.9"
December 14° 37° -39° (1983) 70° (1988) 0.66" 8.6"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Oct 1 37° 65° 14° (1950) 89° (1992) 0.04" 0.1"
Oct 2 37° 65° 15° (1950) 89° (1963) 0.05" 0.1"
Oct 3 37° 64° 18° (1968) 90° (1987) 0.04" 0"
Oct 4 37° 64° 24° (1950) 88° (1970) 0.04" 0.1"
Oct 5 36° 64° 11° (1952) 89° (1980) 0.05" 0.1"
Oct 6 36° 63° 9° (1952) 86° (1960) 0.04" 0.1"
Oct 7 36° 63° 14° (2000) 89° (1980) 0.04" 0"
Oct 8 35° 62° 11° (1985) 88° (1980) 0.04" 0.1"
Oct 9 35° 62° 15° (1993) 86° (1971) 0.04" 0.1"
Oct 10 35° 62° 12° (1987) 88° (1953) 0.04" 0.1"
Oct 11 35° 61° 12° (2009) 84° (1988) 0.04" 0.1"
Oct 12 34° 61° 15° (2009) 87° (1988) 0.04" 0.1"
Oct 13 34° 61° 13° (1969) 85° (1964) 0.03" 0.1"
Oct 14 34° 60° 15° (1969) 86° (1958) 0.04" 0.1"
Oct 15 33° 60° 14° (1976) 87° (1961) 0.03" 0.1"
Oct 16 33° 60° 11° (1969) 84° (1961) 0.04" 0.1"
Oct 17 33° 59° 10° (1948) 84° (1958) 0.03" 0.1"
Oct 18 33° 59° 16° (1951) 85° (1958) 0.04" 0.1"
Oct 19 32° 58° 16° (1960) 84° (2003) 0.03" 0.1"
Oct 20 32° 58° 19° (1982) 77° (1964) 0.03" 0.1"
Oct 21 32° 58° 16° (1981) 83° (1992) 0.03" 0.1"
Oct 22 31° 57° 18° (1957) 79° (2003) 0.02" 0.1"
Oct 23 31° 57° 10° (1957) 84° (1948) 0.03" 0.1"
Oct 24 31° 57° 15° (1975) 82° (2007) 0.03" 0.2"
Oct 25 30° 56° 12° (1997) 81° (1990) 0.02" 0.1"
Oct 26 30° 56° 7° (1951) 83° (1960) 0.03" 0.1"
Oct 27 30° 55° 14° (1991) 79° (1983) 0.03" 0.1"
Oct 28 29° 55° 8° (1991) 81° (1968) 0.02" 0.1"
Oct 29 29° 54° -9° (1991) 86° (1968) 0.03" 0.1"
Oct 30 29° 54° -7° (1991) 77° (1950) 0.02" 0.1"
Oct 31 28° 53° 1° (2002) 81° (1987) 0.02" 0.1"
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