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) 0.31" NA
February 10° 36° -41° (1982) 73° (1992) 0.24" NA
March 20° 47° -35° (1962) 79° (2007) 0.43" NA
April 31° 60° -5° (1986) 93° (1952) 1.06" NA
May 42° 71° 14° (1954) 102° (1988) 1.92" NA
June 52° 81° 30° (1979) 110° (1988) 2.15" NA
July 57° 89° 38° (1987) 111° (2002) 1.55" NA
August 55° 88° 28° (1988) 111° (1995) 1.29" NA
September 43° 76° 15° (1989) 106° (1983) 1.28" NA
October 31° 62° -9° (1991) 94° (1989) 0.94" NA
November 18° 43° -31° (1985) 79° (1987) 0.44" NA
December 32° -43° (1983) 69° (1979) 0.24" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 11° 36° -15° (1966) 60° (1995) 0.01" NA
Dec 2 11° 36° -38° (1985) 61° (1994) 0.01" NA
Dec 3 10° 36° -35° (1985) 58° (1956) 0.01" NA
Dec 4 10° 36° -13° (1984) 59° (1989) 0.01" NA
Dec 5 10° 35° -22° (1972) 69° (1979) 0.01" NA
Dec 6 35° -30° (1950) 61° (1979) 0.01" NA
Dec 7 35° -26° (1950) 53° (1987) 0.01" NA
Dec 8 34° -30° (1972) 56° (1987) 0.01" NA
Dec 9 34° -40° (1977) 56° (1990) 0.01" NA
Dec 10 34° -38° (1977) 63° (1957) 0.01" NA
Dec 11 34° -21° (1961) 59° (1987) 0.01" NA
Dec 12 33° -26° (2000) 61° (1980) 0.01" NA
Dec 13 33° -31° (1985) 53° (2006) 0.01" NA
Dec 14 33° -29° (1963) 55° (1988) 0" NA
Dec 15 33° -30° (1989) 57° (1979) 0" NA
Dec 16 32° -27° (1989) 64° (1980) 0" NA
Dec 17 32° -35° (1975) 59° (1962) 0" NA
Dec 18 32° -34° (1983) 59° (1998) 0" NA
Dec 19 32° -34° (1983) 62° (1979) 0" NA
Dec 20 31° -32° (1951) 57° (2004) 0" NA
Dec 21 31° -42° (1989) 57° (1954) 0.01" NA
Dec 22 31° -38° (1990) 55° (1954) 0.01" NA
Dec 23 30° -43° (1983) 60° (1954) 0.01" NA
Dec 24 30° -36° (1983) 52° (1950) 0.01" NA
Dec 25 30° -32° (1983) 53° (1963) 0.01" NA
Dec 26 30° -32° (1983) 54° (1963) 0.01" NA
Dec 27 30° -26° (1983) 57° (1976) 0.01" NA
Dec 28 29° -22° (1968) 55° (1956) 0.01" NA
Dec 29 29° -28° (1990) 60° (1999) 0.01" NA
Dec 30 29° -32° (1990) 57° (1956) 0.01" NA
Dec 31 29° -34° (1978) 52° (1999) 0.01" NA
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