Boulder, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 10° 34° -38° (1957) 58° (2005) 0.4" NA
February 14° 40° -39° (1989) 65° (1995) 0.3" NA
March 20° 47° -28° (1955) 72° (1986) 0.52" NA
April 26° 56° -6° (1997) 83° (1987) 0.76" NA
May 34° 65° 9° (1967) 89° (1986) 1.99" NA
June 42° 74° 22° (1954) 96° (1988) 1.94" NA
July 47° 82° 30° (1949) 101° (2002) 1.51" NA
August 46° 82° 19° (1992) 100° (1961) 1.43" NA
September 36° 71° 8° (1965) 94° (1950) 1.06" NA
October 27° 60° -14° (1991) 87° (1992) 0.61" NA
November 18° 42° -34° (1959) 71° (1999) 0.56" NA
December 11° 35° -42° (1990) 62° (1980) 0.43" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Oct 1 32° 66° 14° (1950) 84° (1992) 0.02" NA
Oct 2 32° 66° 13° (2002) 87° (1992) 0.02" NA
Oct 3 31° 66° 14° (1999) 83° (1992) 0.02" NA
Oct 4 31° 65° 9° (1985) 81° (1987) 0.02" NA
Oct 5 31° 65° 11° (2001) 80° (1958) 0.02" NA
Oct 6 30° 65° 11° (1974) 79° (1960) 0.02" NA
Oct 7 30° 64° 12° (2000) 80° (1979) 0.02" NA
Oct 8 30° 64° 12° (1985) 82° (1980) 0.02" NA
Oct 9 30° 63° -5° (1985) 79° (1953) 0.02" NA
Oct 10 29° 63° 7° (1987) 81° (1996) 0.02" NA
Oct 11 29° 63° 15° (1987) 80° (1991) 0.02" NA
Oct 12 29° 62° 15° (1986) 78° (1950) 0.02" NA
Oct 13 29° 62° 5° (1969) 78° (1964) 0.02" NA
Oct 14 28° 61° 5° (1969) 79° (1958) 0.02" NA
Oct 15 28° 61° 13° (1960) 78° (1991) 0.02" NA
Oct 16 28° 60° 8° (1970) 79° (1974) 0.02" NA
Oct 17 27° 60° 11° (1948) 77° (1955) 0.02" NA
Oct 18 27° 59° 15° (1989) 77° (1958) 0.02" NA
Oct 19 27° 59° 11° (1969) 79° (2003) 0.02" NA
Oct 20 26° 58° 11° (1984) 74° (2003) 0.02" NA
Oct 21 26° 57° 10° (1984) 77° (2003) 0.02" NA
Oct 22 26° 57° 11° (1957) 78° (2003) 0.02" NA
Oct 23 25° 56° 8° (1957) 76° (1952) 0.02" NA
Oct 24 25° 56° 8° (2002) 74° (1959) 0.02" NA
Oct 25 25° 55° 11° (2002) 78° (1990) 0.01" NA
Oct 26 24° 54° 9° (2002) 76° (1990) 0.02" NA
Oct 27 24° 54° 3° (1996) 73° (1983) 0.02" NA
Oct 28 24° 53° 5° (1971) 74° (1968) 0.02" NA
Oct 29 23° 52° -10° (1971) 72° (1968) 0.02" NA
Oct 30 23° 51° -14° (1991) 68° (2007) 0.02" NA
Oct 31 23° 51° -13° (2002) 68° (1988) 0.02" NA
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