Great Falls/Malmstrom AFB, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 11° 32° -44° (1909) 67° (1992) 0.68" 9.6"
February 15° 38° -49° (1936) 84° (1892) 0.51" 7.6"
March 21° 45° -32° (1932) 80° (1892) 1.01" 11.5"
April 30° 56° -10° (1936) 89° (1980) 1.4" 8"
May 38° 65° 15° (1954) 100° (1919) 2.53" 2.3"
June 46° 74° 31° (1999) 102° (1919) 2.24" 0"
July 50° 82° 35° (1915) 107° (1933) 1.45" 0"
August 50° 81° 30° (1992) 106° (1969) 1.65" 0.3"
September 41° 70° 10° (1926) 100° (1893) 1.23" 1.4"
October 33° 58° -11° (1991) 91° (1992) 0.93" 4.4"
November 23° 42° -25° (1985) 83° (1892) 0.59" 7.4"
December 14° 34° -43° (1968) 69° (1939) 0.67" 8.4"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Aug 1 52° 84° 38° (1999) 100° (1908) 0.05" NA
Aug 2 52° 84° 41° (2002) 99° (1893) 0.05" NA
Aug 3 52° 84° 40° (2002) 100° (2001) 0.05" NA
Aug 4 52° 84° 41° (1982) 102° (1961) 0.05" NA
Aug 5 52° 84° 42° (1924) 106° (1961) 0.05" NA
Aug 6 51° 84° 41° (1924) 104° (1983) 0.05" NA
Aug 7 51° 83° 35° (1939) 101° (1970) 0.05" NA
Aug 8 51° 83° 41° (1917) 99° (1971) 0.05" NA
Aug 9 51° 83° 38° (1893) 102° (1936) 0.05" NA
Aug 10 51° 83° 40° (2004) 104° (1984) 0.05" NA
Aug 11 51° 83° 37° (1893) 101° (1996) 0.05" NA
Aug 12 51° 83° 38° (1966) 98° (1971) 0.05" NA
Aug 13 51° 82° 40° (2005) 98° (1892) 0.06" NA
Aug 14 51° 82° 36° (1995) 101° (1971) 0.06" NA
Aug 15 51° 82° 40° (2002) 101° (1990) 0.06" NA
Aug 16 50° 82° 39° (2002) 100° (1973) 0.06" NA
Aug 17 50° 82° 36° (2002) 98° (1919) 0.06" NA
Aug 18 50° 81° 40° (1987) 101° (1964) 0.06" NA
Aug 19 50° 81° 40° (2005) 97° (1967) 0.06" NA
Aug 20 50° 81° 39° (1916) 99° (1931) 0.06" NA
Aug 21 49° 80° 38° (1992) 99° (1894) 0.06" NA
Aug 22 49° 80° 32° (1992) 98° (1976) 0.06" NA
Aug 23 49° 80° 32° (1992) 102° (1969) 0.05" NA
Aug 24 49° 79° 30° (1992) 106° (1969) 0.05" NA
Aug 25 48° 79° 31° (1992) 100° (1970) 0.05" NA
Aug 26 48° 79° 35° (1892) 96° (1894) 0.05" NA
Aug 27 48° 78° 39° (1911) 98° (1971) 0.05" NA
Aug 28 47° 78° 35° (1918) 96° (1924) 0.05" NA
Aug 29 47° 77° 34° (1992) 97° (2005) 0.05" NA
Aug 30 47° 77° 35° (1993) 97° (1999) 0.05" NA
Aug 31 46° 76° 34° (1930) 98° (1991) 0.05" NA
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