Chester, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 28° -57° (1950) 66° (1992) 0.38" NA
February 35° -44° (1994) 74° (1992) 0.26" NA
March 19° 45° -38° (1951) 79° (2004) 0.51" NA
April 29° 58° -19° (1975) 88° (1980) 0.71" NA
May 39° 68° 14° (1954) 94° (2001) 1.77" NA
June 47° 75° 24° (1969) 100° (2002) 2.2" NA
July 50° 83° 31° (1958) 104° (2007) 1.47" NA
August 49° 82° 28° (1992) 105° (1961) 1.21" NA
September 39° 71° 13° (1972) 97° (1963) 0.84" NA
October 28° 59° -17° (1991) 89° (1992) 0.48" NA
November 16° 41° -31° (1959) 75° (1999) 0.36" NA
December 30° -52° (1983) 64° (1987) 0.39" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jun 1 44° 72° 30° (1969) 93° (1977) 0.07" NA
Jun 2 44° 72° 31° (1998) 91° (1986) 0.07" NA
Jun 3 44° 72° 29° (1998) 94° (1988) 0.07" NA
Jun 4 44° 73° 31° (1955) 95° (1988) 0.07" NA
Jun 5 44° 73° 29° (1962) 94° (1988) 0.08" NA
Jun 6 45° 73° 29° (1962) 93° (1977) 0.08" NA
Jun 7 45° 73° 31° (1956) 96° (1949) 0.08" NA
Jun 8 45° 73° 27° (1979) 92° (1977) 0.08" NA
Jun 9 45° 74° 32° (1950) 91° (1992) 0.08" NA
Jun 10 46° 74° 34° (1959) 95° (1956) 0.08" NA
Jun 11 46° 74° 32° (1973) 91° (1992) 0.08" NA
Jun 12 46° 74° 31° (1956) 91° (1979) 0.08" NA
Jun 13 46° 75° 24° (1969) 91° (1979) 0.08" NA
Jun 14 46° 75° 28° (1969) 94° (1987) 0.08" NA
Jun 15 47° 75° 33° (1968) 95° (1987) 0.08" NA
Jun 16 47° 75° 30° (1949) 95° (1961) 0.08" NA
Jun 17 47° 76° 29° (1994) 97° (1961) 0.07" NA
Jun 18 47° 76° 29° (1954) 90° (1963) 0.07" NA
Jun 19 47° 76° 25° (1949) 94° (1974) 0.07" NA
Jun 20 47° 77° 32° (1949) 93° (1961) 0.07" NA
Jun 21 48° 77° 35° (1953) 91° (1988) 0.07" NA
Jun 22 48° 77° 32° (1981) 97° (1988) 0.07" NA
Jun 23 48° 77° 30° (1967) 95° (1992) 0.07" NA
Jun 24 48° 78° 30° (1967) 95° (1974) 0.07" NA
Jun 25 48° 78° 31° (1967) 95° (1974) 0.07" NA
Jun 26 48° 78° 37° (1953) 97° (1990) 0.07" NA
Jun 27 49° 78° 32° (1949) 99° (2002) 0.07" NA
Jun 28 49° 79° 36° (1971) 100° (2002) 0.07" NA
Jun 29 49° 79° 28° (1949) 98° (1984) 0.06" NA
Jun 30 49° 79° 35° (1958) 100° (1990) 0.06" NA
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