Fallon, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 28° -45° (1954) 65° (2002) 0.29" NA
February 10° 34° -41° (1982) 73° (1992) 0.23" NA
March 21° 46° -35° (1962) 79° (2007) 0.44" NA
April 31° 59° -5° (1986) 93° (1952) 1.22" NA
May 42° 69° 14° (1954) 102° (1988) 2.15" NA
June 51° 78° 30° (1979) 110° (1988) 2.1" NA
July 57° 87° 38° (1987) 111° (2002) 1.72" NA
August 55° 87° 28° (1988) 111° (1995) 1.25" NA
September 43° 74° 15° (1989) 106° (1983) 1.15" NA
October 31° 59° -9° (1991) 94° (1989) 0.86" NA
November 19° 43° -31° (1985) 79° (1987) 0.31" NA
December 31° -43° (1983) 69° (1979) 0.27" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 11° 35° -15° (1966) 60° (1995) 0.01" NA
Dec 2 11° 35° -38° (1985) 61° (1994) 0.01" NA
Dec 3 11° 34° -35° (1985) 58° (1956) 0.01" NA
Dec 4 10° 34° -13° (1984) 59° (1989) 0" NA
Dec 5 10° 33° -22° (1972) 69° (1979) 0.01" NA
Dec 6 33° -30° (1950) 61° (1979) 0.01" NA
Dec 7 33° -26° (1950) 53° (1987) 0.01" NA
Dec 8 32° -30° (1972) 56° (1987) 0" NA
Dec 9 32° -40° (1977) 56° (1990) 0.01" NA
Dec 10 32° -38° (1977) 63° (1957) 0.01" NA
Dec 11 31° -21° (1961) 59° (1987) 0" NA
Dec 12 31° -26° (2000) 61° (1980) 0.01" NA
Dec 13 31° -31° (1985) 53° (2006) 0" NA
Dec 14 31° -29° (1963) 55° (1988) 0.01" NA
Dec 15 30° -34° (2009) 57° (1979) 0.01" NA
Dec 16 30° -28° (2008) 64° (1980) 0" NA
Dec 17 30° -35° (1975) 59° (1962) 0.01" NA
Dec 18 30° -34° (1983) 59° (1998) 0.01" NA
Dec 19 30° -34° (1983) 62° (1979) 0.01" NA
Dec 20 29° -32° (1951) 57° (2004) 0.01" NA
Dec 21 29° -42° (1989) 57° (1954) 0.01" NA
Dec 22 29° -38° (1990) 55° (1954) 0.01" NA
Dec 23 29° -43° (1983) 60° (1954) 0.01" NA
Dec 24 29° -36° (1983) 52° (1950) 0.01" NA
Dec 25 29° -32° (1983) 53° (1963) 0.01" NA
Dec 26 29° -32° (1983) 54° (1963) 0.01" NA
Dec 27 28° -26° (1983) 57° (1976) 0.01" NA
Dec 28 28° -22° (1968) 55° (1956) 0.01" NA
Dec 29 28° -28° (1990) 60° (1999) 0.01" NA
Dec 30 28° -32° (1990) 57° (1956) 0.02" NA
Dec 31 28° -34° (1978) 52° (1999) 0.01" NA
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