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
Aug 1 52° 83° 41° (1950) 97° (1952) 0.06" NA
Aug 2 52° 83° 41° (1974) 97° (1961) 0.06" NA
Aug 3 52° 84° 38° (1974) 103° (1961) 0.06" NA
Aug 4 52° 84° 41° (1955) 104° (1961) 0.06" NA
Aug 5 52° 84° 38° (1980) 105° (1961) 0.05" NA
Aug 6 52° 84° 41° (1959) 105° (1949) 0.05" NA
Aug 7 52° 84° 40° (1957) 102° (1983) 0.05" NA
Aug 8 52° 83° 42° (1960) 99° (1958) 0.05" NA
Aug 9 52° 83° 40° (1960) 95° (1957) 0.05" NA
Aug 10 52° 83° 39° (1960) 99° (1969) 0.05" NA
Aug 11 52° 83° 39° (1964) 101° (1983) 0.05" NA
Aug 12 52° 83° 36° (1987) 100° (1965) 0.05" NA
Aug 13 51° 83° 40° (1968) 97° (1961) 0.05" NA
Aug 14 51° 83° 33° (1959) 101° (1971) 0.05" NA
Aug 15 51° 83° 38° (1974) 100° (1990) 0.05" NA
Aug 16 51° 82° 39° (1975) 100° (1973) 0.05" NA
Aug 17 51° 82° 35° (2002) 96° (1959) 0.05" NA
Aug 18 50° 82° 35° (1978) 101° (1948) 0.05" NA
Aug 19 50° 82° 36° (1950) 97° (1963) 0.05" NA
Aug 20 50° 81° 34° (1956) 98° (1971) 0.05" NA
Aug 21 50° 81° 41° (1955) 99° (1969) 0.05" NA
Aug 22 49° 81° 37° (1992) 104° (1976) 0.05" NA
Aug 23 49° 80° 33° (1966) 102° (1969) 0.05" NA
Aug 24 49° 80° 34° (1960) 102° (1969) 0.05" NA
Aug 25 49° 80° 29° (1992) 99° (1985) 0.05" NA
Aug 26 48° 79° 34° (1992) 96° (1966) 0.05" NA
Aug 27 48° 79° 33° (1954) 98° (1971) 0.05" NA
Aug 28 48° 78° 35° (1960) 97° (1971) 0.05" NA
Aug 29 47° 78° 36° (1965) 96° (1981) 0.05" NA
Aug 30 47° 78° 32° (1980) 97° (1948) 0.05" NA
Aug 31 46° 77° 34° (1992) 103° (1955) 0.05" NA
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