Great Falls, 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
Jun 1 43° 69° 32° (1919) 94° (1977) 0.09" NA
Jun 2 43° 70° 32° (1984) 89° (1986) 0.09" NA
Jun 3 43° 70° 33° (1943) 93° (1988) 0.09" NA
Jun 4 44° 70° 32° (1998) 95° (1988) 0.08" NA
Jun 5 44° 71° 34° (1951) 92° (1969) 0.08" NA
Jun 6 44° 71° 33° (1951) 93° (1977) 0.08" NA
Jun 7 44° 71° 31° (1950) 96° (1930) 0.08" NA
Jun 8 44° 72° 31° (1950) 93° (1996) 0.08" NA
Jun 9 45° 72° 36° (1950) 97° (1918) 0.08" NA
Jun 10 45° 72° 31° (1999) 96° (1918) 0.08" NA
Jun 11 45° 72° 34° (1969) 96° (1918) 0.08" NA
Jun 12 45° 73° 32° (1969) 98° (1918) 0.08" NA
Jun 13 46° 73° 32° (1969) 97° (1918) 0.08" NA
Jun 14 46° 73° 36° (1945) 98° (1987) 0.08" NA
Jun 15 46° 74° 33° (1994) 100° (1933) 0.08" NA
Jun 16 46° 74° 35° (2001) 100° (1933) 0.08" NA
Jun 17 46° 74° 33° (1994) 97° (1961) 0.07" NA
Jun 18 47° 75° 34° (1902) 93° (2003) 0.07" NA
Jun 19 47° 75° 38° (2001) 95° (1974) 0.07" NA
Jun 20 47° 75° 35° (1902) 100° (1919) 0.07" NA
Jun 21 47° 76° 37° (1997) 102° (1919) 0.07" NA
Jun 22 47° 76° 39° (1963) 99° (1988) 0.07" NA
Jun 23 48° 76° 35° (1905) 101° (1936) 0.07" NA
Jun 24 48° 77° 36° (2003) 97° (1974) 0.07" NA
Jun 25 48° 77° 37° (2003) 99° (1919) 0.07" NA
Jun 26 48° 77° 36° (1999) 101° (1919) 0.06" NA
Jun 27 48° 78° 37° (1951) 101° (1936) 0.06" NA
Jun 28 48° 78° 36° (1995) 96° (1892) 0.06" NA
Jun 29 49° 78° 40° (1968) 98° (1937) 0.06" NA
Jun 30 49° 78° 36° (1995) 101° (1990) 0.06" NA
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