Chester, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 30° -57° (1950) 66° (1992) 0.37" NA
February 35° -44° (1994) 74° (1992) 0.33" NA
March 18° 45° -38° (1951) 79° (2004) 0.54" NA
April 28° 57° -19° (1975) 88° (1980) 0.82" NA
May 39° 67° 14° (1954) 94° (2001) 1.73" NA
June 47° 75° 24° (1969) 100° (2002) 2.3" NA
July 52° 83° 31° (1958) 104° (2007) 1.49" NA
August 50° 82° 28° (1992) 105° (1961) 1.11" NA
September 40° 71° 13° (1972) 97° (1963) 0.97" NA
October 28° 58° -17° (1991) 89° (1992) 0.55" NA
November 15° 41° -31° (1959) 75° (1999) 0.38" NA
December 31° -52° (1983) 64° (1987) 0.48" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jul 1 49° 79° 34° (1968) 98° (1990) 0.06" NA
Jul 2 49° 79° 34° (1972) 95° (1986) 0.06" NA
Jul 3 50° 80° 34° (1972) 95° (1986) 0.06" NA
Jul 4 50° 80° 32° (1971) 99° (2001) 0.06" NA
Jul 5 50° 80° 32° (1959) 99° (1981) 0.06" NA
Jul 6 50° 80° 37° (1949) 97° (1975) 0.05" NA
Jul 7 50° 81° 33° (1952) 104° (2007) 0.05" NA
Jul 8 51° 81° 36° (1949) 95° (1985) 0.05" NA
Jul 9 51° 81° 35° (1949) 97° (1950) 0.05" NA
Jul 10 51° 82° 41° (1984) 98° (1957) 0.05" NA
Jul 11 51° 82° 36° (1993) 100° (2002) 0.05" NA
Jul 12 51° 82° 36° (1987) 99° (2002) 0.05" NA
Jul 13 51° 83° 36° (1971) 103° (1953) 0.05" NA
Jul 14 52° 83° 33° (1949) 102° (1953) 0.05" NA
Jul 15 52° 83° 31° (1958) 99° (2007) 0.05" NA
Jul 16 52° 83° 37° (1958) 101° (2007) 0.05" NA
Jul 17 52° 84° 34° (1993) 98° (1955) 0.05" NA
Jul 18 52° 84° 37° (1957) 100° (1960) 0.04" NA
Jul 19 52° 84° 37° (1962) 103° (1960) 0.05" NA
Jul 20 52° 84° 35° (1980) 101° (2007) 0.05" NA
Jul 21 53° 84° 35° (1949) 97° (1960) 0.04" NA
Jul 22 53° 85° 38° (1972) 102° (1960) 0.05" NA
Jul 23 53° 85° 38° (1954) 98° (2003) 0.04" NA
Jul 24 53° 85° 33° (1949) 102° (2007) 0.04" NA
Jul 25 53° 85° 40° (1971) 95° (1957) 0.05" NA
Jul 26 53° 85° 37° (1999) 97° (1957) 0.04" NA
Jul 27 53° 85° 40° (1995) 99° (1975) 0.04" NA
Jul 28 53° 85° 39° (1976) 101° (1951) 0.03" NA
Jul 29 53° 86° 33° (1949) 100° (2007) 0.04" NA
Jul 30 53° 86° 38° (1971) 98° (2000) 0.04" NA
Jul 31 53° 86° 35° (1968) 98° (1952) 0.04" NA
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