Boulder, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 12° 35° -38° (1957) 58° (2005) 0.31" NA
February 15° 39° -39° (1989) 65° (1995) 0.27" NA
March 21° 47° -28° (1955) 72° (1986) 0.47" NA
April 27° 55° -6° (1997) 83° (1987) 0.75" NA
May 35° 64° 9° (1967) 89° (1986) 1.99" NA
June 43° 73° 22° (1954) 96° (1988) 2.16" NA
July 48° 82° 30° (1949) 101° (2002) 1.65" NA
August 46° 82° 19° (1992) 100° (1961) 1.33" NA
September 37° 71° 8° (1965) 94° (1950) 0.99" NA
October 28° 58° -14° (1991) 87° (1992) 0.64" NA
November 19° 42° -34° (1959) 71° (1999) 0.49" NA
December 10° 33° -42° (1990) 62° (1980) 0.33" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jul 1 46° 78° 35° (1979) 92° (1990) 0.06" NA
Jul 2 46° 78° 31° (1955) 93° (1986) 0.06" NA
Jul 3 47° 79° 35° (1997) 95° (1986) 0.06" NA
Jul 4 47° 79° 33° (1994) 94° (1985) 0.06" NA
Jul 5 47° 79° 32° (1999) 96° (1981) 0.06" NA
Jul 6 47° 80° 32° (1986) 99° (2007) 0.06" NA
Jul 7 47° 80° 33° (1971) 99° (2007) 0.06" NA
Jul 8 47° 81° 31° (1981) 95° (1989) 0.05" NA
Jul 9 48° 81° 35° (2009) 94° (1985) 0.06" NA
Jul 10 48° 81° 33° (1993) 96° (1973) 0.06" NA
Jul 11 48° 81° 34° (1951) 96° (2002) 0.05" NA
Jul 12 48° 82° 35° (1971) 99° (2002) 0.06" NA
Jul 13 48° 82° 37° (1965) 100° (2002) 0.06" NA
Jul 14 48° 82° 36° (1993) 101° (2002) 0.05" NA
Jul 15 49° 83° 33° (1958) 95° (1974) 0.06" NA
Jul 16 49° 83° 36° (1953) 96° (1955) 0.05" NA
Jul 17 49° 83° 34° (1982) 95° (1955) 0.06" NA
Jul 18 49° 83° 37° (1993) 98° (1951) 0.05" NA
Jul 19 49° 83° 33° (1972) 98° (1960) 0.05" NA
Jul 20 49° 84° 38° (1987) 99° (1960) 0.05" NA
Jul 21 49° 84° 36° (1978) 96° (1960) 0.05" NA
Jul 22 49° 84° 35° (1972) 95° (2003) 0.05" NA
Jul 23 49° 84° 38° (1954) 96° (1951) 0.04" NA
Jul 24 49° 84° 39° (1953) 96° (2007) 0.05" NA
Jul 25 49° 84° 35° (1948) 92° (1988) 0.05" NA
Jul 26 49° 84° 35° (2005) 95° (1988) 0.04" NA
Jul 27 49° 84° 37° (1963) 96° (1988) 0.05" NA
Jul 28 49° 85° 30° (1949) 96° (2006) 0.04" NA
Jul 29 49° 85° 37° (1949) 97° (2006) 0.05" NA
Jul 30 49° 85° 37° (1995) 96° (1966) 0.05" NA
Jul 31 49° 85° 34° (1995) 97° (1966) 0.05" NA
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