Grass Range, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 11° 35° -40° (1969) 74° (1981) 0.79" NA
February 16° 40° -34° (1996) 73° (1992) 0.31" NA
March 22° 47° -32° (1960) 80° (1978) 0.99" NA
April 31° 57° -5° (1986) 94° (1987) 1.44" NA
May 39° 66° 6° (1954) 97° (1980) 3.08" NA
June 47° 75° 27° (1969) 103° (1988) 2.81" NA
July 51° 81° 31° (1994) 104° (1985) 2.06" NA
August 50° 82° 29° (1992) 105° (1961) 1.59" NA
September 41° 71° 15° (1985) 100° (1950) 1.27" NA
October 32° 60° -9° (1991) 90° (1987) 0.92" NA
November 21° 44° -26° (1955) 85° (1975) 0.61" NA
December 13° 37° -39° (1983) 70° (1988) 0.64" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jul 1 49° 79° 35° (1968) 100° (1990) 0.08" NA
Jul 2 50° 79° 35° (1955) 98° (1985) 0.08" NA
Jul 3 50° 79° 36° (1972) 98° (1961) 0.08" NA
Jul 4 50° 79° 33° (1972) 96° (1952) 0.08" NA
Jul 5 50° 80° 39° (1959) 104° (1985) 0.07" NA
Jul 6 50° 80° 40° (1958) 100° (1985) 0.07" NA
Jul 7 50° 80° 37° (1971) 101° (1983) 0.07" NA
Jul 8 50° 80° 37° (1971) 102° (1983) 0.07" NA
Jul 9 50° 80° 39° (1994) 97° (1970) 0.07" NA
Jul 10 51° 81° 40° (1999) 102° (1973) 0.07" NA
Jul 11 51° 81° 35° (1951) 100° (1973) 0.07" NA
Jul 12 51° 81° 39° (1963) 101° (2002) 0.07" NA
Jul 13 51° 81° 40° (1965) 101° (1953) 0.07" NA
Jul 14 51° 81° 31° (1994) 103° (1953) 0.07" NA
Jul 15 51° 81° 36° (1994) 99° (1960) 0.07" NA
Jul 16 51° 82° 33° (1994) 102° (1966) 0.07" NA
Jul 17 51° 82° 40° (1950) 100° (1955) 0.06" NA
Jul 18 51° 82° 42° (1952) 102° (1955) 0.06" NA
Jul 19 51° 82° 37° (1972) 103° (1960) 0.06" NA
Jul 20 51° 82° 41° (1994) 102° (1960) 0.06" NA
Jul 21 51° 82° 36° (1994) 99° (1979) 0.06" NA
Jul 22 52° 82° 37° (1954) 104° (1985) 0.06" NA
Jul 23 52° 83° 40° (1950) 100° (1980) 0.06" NA
Jul 24 52° 83° 41° (1952) 100° (1956) 0.06" NA
Jul 25 52° 83° 42° (1958) 101° (1988) 0.06" NA
Jul 26 52° 83° 38° (1971) 101° (1988) 0.06" NA
Jul 27 52° 83° 42° (1969) 100° (1951) 0.06" NA
Jul 28 52° 83° 39° (1976) 99° (1980) 0.06" NA
Jul 29 52° 83° 36° (1971) 97° (1999) 0.06" NA
Jul 30 52° 83° 39° (1971) 100° (1988) 0.06" NA
Jul 31 52° 83° 40° (1968) 100° (1951) 0.06" NA
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