Helena, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 10° 30° -42° (1957) 63° (1902) 0.52" 8.2"
February 16° 37° -42° (1996) 69° (1995) 0.38" 5.7"
March 24° 47° -30° (1955) 78° (2004) 0.63" 6.8"
April 31° 57° -10° (1936) 86° (1992) 0.91" 4.6"
May 40° 66° 17° (1954) 95° (1919) 1.78" 0.9"
June 48° 75° 30° (1999) 102° (1900) 1.82" 0"
July 52° 83° 36° (1971) 105° (2002) 1.34" 0"
August 51° 83° 28° (1992) 105° (1969) 1.29" 0.3"
September 41° 71° 6° (1926) 99° (1967) 1.05" 1.2"
October 31° 58° -8° (1991) 87° (2001) 0.66" 2.8"
November 20° 42° -39° (1959) 75° (1999) 0.48" 5.4"
December 11° 31° -40° (1880) 64° (1980) 0.46" 7.4"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Aug 1 53° 85° 42° (1995) 99° (2000) 0.04" NA
Aug 2 53° 85° 40° (1937) 100° (1966) 0.04" NA
Aug 3 53° 85° 43° (1972) 102° (2001) 0.04" NA
Aug 4 53° 85° 41° (1923) 102° (1961) 0.04" NA
Aug 5 53° 85° 42° (1940) 103° (1961) 0.04" NA
Aug 6 53° 85° 43° (1996) 103° (1990) 0.04" NA
Aug 7 53° 85° 39° (1939) 100° (2001) 0.04" NA
Aug 8 53° 85° 38° (1885) 99° (1990) 0.04" NA
Aug 9 52° 84° 39° (1995) 102° (1940) 0.04" NA
Aug 10 52° 84° 39° (1939) 102° (2003) 0.04" NA
Aug 11 52° 84° 40° (1997) 97° (1996) 0.04" NA
Aug 12 52° 84° 41° (1987) 103° (1940) 0.04" NA
Aug 13 52° 84° 39° (1942) 96° (1940) 0.05" NA
Aug 14 52° 84° 36° (1995) 99° (2003) 0.05" NA
Aug 15 51° 83° 40° (1944) 101° (2003) 0.05" NA
Aug 16 51° 83° 42° (1954) 96° (1966) 0.05" NA
Aug 17 51° 83° 38° (2002) 98° (2001) 0.05" NA
Aug 18 51° 83° 39° (1995) 100° (2001) 0.04" NA
Aug 19 51° 82° 34° (1995) 97° (1967) 0.04" NA
Aug 20 50° 82° 39° (1995) 96° (1967) 0.04" NA
Aug 21 50° 82° 38° (1933) 95° (2005) 0.04" NA
Aug 22 50° 81° 33° (1992) 97° (2006) 0.04" NA
Aug 23 49° 81° 33° (1992) 98° (1967) 0.04" NA
Aug 24 49° 81° 33° (1992) 105° (1969) 0.04" NA
Aug 25 49° 80° 28° (1992) 97° (1966) 0.04" NA
Aug 26 49° 80° 35° (1992) 95° (2003) 0.04" NA
Aug 27 48° 79° 37° (1993) 98° (2001) 0.04" NA
Aug 28 48° 79° 36° (1977) 96° (1924) 0.04" NA
Aug 29 48° 79° 37° (1975) 99° (2005) 0.04" NA
Aug 30 47° 78° 34° (1993) 96° (1999) 0.04" NA
Aug 31 47° 78° 32° (1956) 96° (1991) 0.04" NA
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