Great Falls, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 15° 36° -44° (1909) 67° (1992) 0.51" 8.5"
February 17° 38° -49° (1936) 84° (1892) 0.49" 8.3"
March 23° 46° -32° (1932) 80° (1892) 0.91" 11.9"
April 31° 56° -10° (1936) 89° (1980) 1.42" 8.6"
May 39° 65° 12° (2009) 100° (1919) 2.42" 2.8"
June 46° 73° 31° (1999) 102° (1919) 2.53" 0.3"
July 51° 84° 35° (1915) 107° (1933) 1.5" 0"
August 50° 82° 30° (1992) 106° (1969) 1.57" 0.3"
September 42° 70° 10° (1926) 100° (1893) 1.42" 1.2"
October 33° 58° -11° (1991) 91° (1992) 0.86" 4.1"
November 23° 43° -25° (1985) 83° (1892) 0.59" 8.1"
December 15° 35° -43° (1968) 69° (1939) 0.55" 9"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 18° 37° -29° (1985) 60° (1969) 0.02" 0.3"
Dec 2 18° 36° -28° (1985) 60° (1959) 0.02" 0.3"
Dec 3 17° 36° -19° (1972) 61° (1987) 0.02" 0.3"
Dec 4 17° 36° -22° (1972) 62° (1987) 0.01" 0.2"
Dec 5 17° 36° -22° (1980) 69° (1939) 0.02" 0.3"
Dec 6 17° 35° -25° (1972) 61° (1987) 0.02" 0.3"
Dec 7 16° 35° -30° (1972) 60° (1900) 0.02" 0.3"
Dec 8 16° 35° -36° (1972) 60° (1939) 0.01" 0.2"
Dec 9 16° 35° -38° (1919) 62° (1979) 0.02" 0.3"
Dec 10 16° 35° -22° (2000) 67° (1939) 0.02" 0.3"
Dec 11 15° 35° -26° (1932) 61° (1891) 0.02" 0.3"
Dec 12 15° 34° -32° (1922) 60° (1921) 0.01" 0.3"
Dec 13 15° 34° -29° (1922) 63° (1891) 0.02" 0.2"
Dec 14 15° 34° -25° (2008) 62° (1891) 0.02" 0.3"
Dec 15 15° 34° -28° (1964) 61° (1980) 0.01" 0.3"
Dec 16 14° 34° -36° (1964) 63° (1980) 0.02" 0.3"
Dec 17 14° 34° -27° (1983) 61° (1891) 0.02" 0.3"
Dec 18 14° 34° -27° (1924) 59° (1891) 0.02" 0.2"
Dec 19 14° 34° -25° (1990) 59° (2004) 0.02" 0.3"
Dec 20 14° 34° -28° (1990) 57° (1900) 0.01" 0.3"
Dec 21 14° 34° -35° (1990) 65° (1933) 0.02" 0.3"
Dec 22 14° 34° -27° (1892) 57° (1933) 0.02" 0.3"
Dec 23 14° 34° -30° (1983) 56° (1960) 0.02" 0.3"
Dec 24 14° 34° -42° (1983) 58° (1950) 0.02" 0.4"
Dec 25 14° 34° -29° (1983) 59° (2005) 0.01" 0.3"
Dec 26 14° 34° -27° (1996) 60° (1980) 0.02" 0.3"
Dec 27 14° 34° -37° (1916) 63° (1980) 0.02" 0.3"
Dec 28 14° 34° -35° (1968) 58° (1999) 0.02" 0.3"
Dec 29 14° 34° -43° (1968) 60° (1956) 0.02" 0.3"
Dec 30 14° 34° -30° (1968) 63° (1917) 0.01" 0.3"
Dec 31 14° 34° -33° (1927) 59° (1963) 0.02" 0.3"
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