Helena, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 13° 33° -42° (1957) 63° (1902) 0.36" 6.2"
February 17° 39° -42° (1996) 69° (1995) 0.31" 5"
March 24° 48° -30° (1955) 78° (2004) 0.59" 6.2"
April 32° 58° -10° (1936) 86° (1992) 0.98" 3.7"
May 41° 67° 17° (1954) 95° (1919) 1.87" 0.9"
June 49° 76° 30° (1999) 102° (1900) 2.06" 0"
July 54° 86° 36° (1971) 105° (2002) 1.19" 0"
August 52° 85° 28° (1992) 105° (1969) 1.2" 0.3"
September 43° 73° 6° (1926) 99° (1967) 1.1" 1.3"
October 33° 59° -8° (1991) 87° (2001) 0.68" 2.5"
November 22° 43° -39° (1959) 75° (1999) 0.49" 4.7"
December 12° 32° -40° (1880) 64° (1980) 0.4" 7.3"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Aug 1 55° 88° 42° (1995) 99° (2000) 0.04" 0"
Aug 2 55° 88° 40° (1937) 100° (1966) 0.03" 0"
Aug 3 55° 88° 43° (1972) 102° (2001) 0.04" 0"
Aug 4 55° 88° 41° (1923) 102° (1961) 0.03" 0"
Aug 5 55° 88° 42° (1940) 103° (1961) 0.04" 0"
Aug 6 54° 87° 43° (1996) 103° (1990) 0.03" 0"
Aug 7 54° 87° 39° (1939) 100° (2001) 0.04" 0"
Aug 8 54° 87° 38° (1885) 99° (1990) 0.04" 0"
Aug 9 54° 87° 39° (1995) 102° (1940) 0.04" 0"
Aug 10 54° 87° 39° (1939) 102° (2003) 0.04" 0"
Aug 11 54° 86° 40° (1997) 97° (1996) 0.04" 0"
Aug 12 53° 86° 41° (1987) 103° (1940) 0.04" 0.1"
Aug 13 53° 86° 39° (1942) 96° (1940) 0.04" 0"
Aug 14 53° 86° 36° (1995) 99° (2003) 0.04" 0"
Aug 15 53° 85° 40° (1944) 101° (2003) 0.03" 0"
Aug 16 53° 85° 42° (1954) 96° (1966) 0.04" 0"
Aug 17 52° 85° 38° (2002) 98° (2001) 0.04" 0"
Aug 18 52° 84° 39° (1995) 100° (2001) 0.04" 0"
Aug 19 52° 84° 34° (1995) 98° (2008) 0.04" 0"
Aug 20 52° 84° 39° (1995) 96° (1967) 0.04" 0"
Aug 21 51° 83° 38° (1933) 95° (2005) 0.04" 0.1"
Aug 22 51° 83° 33° (1992) 97° (2006) 0.04" 0"
Aug 23 51° 83° 33° (1992) 98° (1967) 0.04" 0"
Aug 24 50° 82° 33° (1992) 105° (1969) 0.04" 0"
Aug 25 50° 82° 28° (1992) 97° (1966) 0.04" 0"
Aug 26 50° 82° 35° (1992) 97° (2010) 0.04" 0"
Aug 27 50° 81° 37° (1993) 98° (2001) 0.04" 0"
Aug 28 49° 81° 36° (1977) 96° (1924) 0.04" 0"
Aug 29 49° 80° 37° (1975) 99° (2005) 0.04" 0.1"
Aug 30 49° 80° 34° (1993) 96° (1999) 0.04" 0"
Aug 31 48° 79° 32° (1956) 96° (1991) 0.04" 0"
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