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
Oct 1 37° 64° 22° (1959) 91° (1992) 0.04" 0.1"
Oct 2 37° 64° 18° (1999) 86° (1943) 0.04" 0.1"
Oct 3 37° 63° 17° (1999) 91° (1943) 0.03" 0.1"
Oct 4 36° 63° 18° (1916) 86° (1979) 0.04" 0.1"
Oct 5 36° 62° 20° (2000) 90° (1895) 0.03" 0.1"
Oct 6 36° 62° 16° (2000) 83° (1980) 0.03" 0.1"
Oct 7 35° 62° 15° (1985) 88° (1895) 0.03" 0.1"
Oct 8 35° 61° 8° (1985) 85° (1936) 0.03" 0.1"
Oct 9 35° 61° 6° (1985) 84° (1971) 0.04" 0.1"
Oct 10 35° 60° 4° (2009) 86° (1934) 0.03" 0.1"
Oct 11 34° 60° 10° (2009) 90° (1934) 0.03" 0.1"
Oct 12 34° 60° 13° (2009) 85° (1934) 0.02" 0.1"
Oct 13 34° 59° 14° (1969) 85° (1964) 0.03" 0.1"
Oct 14 33° 59° 12° (1899) 81° (1958) 0.03" 0.1"
Oct 15 33° 58° 11° (1899) 86° (1895) 0.03" 0.2"
Oct 16 33° 58° 14° (1930) 88° (1895) 0.03" 0.1"
Oct 17 33° 57° 8° (1930) 85° (1895) 0.03" 0.1"
Oct 18 32° 57° 6° (1905) 84° (1896) 0.02" 0.2"
Oct 19 32° 57° 2° (1905) 81° (1974) 0.03" 0.1"
Oct 20 32° 56° 16° (1984) 82° (1895) 0.02" 0.2"
Oct 21 31° 56° 10° (1930) 80° (1915) 0.03" 0.1"
Oct 22 31° 55° 8° (1917) 81° (1892) 0.02" 0.2"
Oct 23 31° 55° 10° (1957) 79° (1915) 0.02" 0.1"
Oct 24 31° 54° 1° (1919) 78° (1903) 0.03" 0.2"
Oct 25 30° 54° -5° (1919) 80° (1892) 0.02" 0.1"
Oct 26 30° 53° 8° (1919) 78° (1944) 0.03" 0.2"
Oct 27 30° 53° -10° (1919) 75° (1983) 0.02" 0.2"
Oct 28 29° 52° -5° (1925) 76° (1937) 0.02" 0.2"
Oct 29 29° 52° -5° (1991) 80° (1892) 0.02" 0.1"
Oct 30 29° 52° -11° (1991) 78° (1892) 0.02" 0.2"
Oct 31 29° 51° -9° (2002) 76° (1897) 0.02" 0.2"
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