East 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
Dec 1 16° 35° -25° (1985) 60° (2008) 0.02" 0.2"
Dec 2 15° 35° -25° (1985) 58° (1941) 0.01" 0.3"
Dec 3 15° 34° -26° (1880) 62° (1975) 0.02" 0.2"
Dec 4 15° 34° -24° (1972) 64° (1918) 0.01" 0.2"
Dec 5 14° 34° -28° (1972) 60° (1939) 0.02" 0.2"
Dec 6 14° 33° -30° (1972) 60° (1987) 0.01" 0.3"
Dec 7 13° 33° -28° (1972) 54° (1887) 0.01" 0.2"
Dec 8 13° 33° -35° (1972) 60° (1939) 0.02" 0.3"
Dec 9 13° 32° -30° (1972) 59° (1957) 0.01" 0.2"
Dec 10 13° 32° -27° (1972) 63° (1939) 0.01" 0.3"
Dec 11 12° 32° -22° (1961) 59° (2004) 0.02" 0.2"
Dec 12 12° 32° -23° (1922) 62° (1921) 0.01" 0.3"
Dec 13 12° 31° -22° (1919) 58° (1924) 0.01" 0.2"
Dec 14 12° 31° -20° (1926) 63° (1924) 0.01" 0.3"
Dec 15 11° 31° -25° (1924) 57° (1980) 0.02" 0.2"
Dec 16 11° 31° -36° (1964) 60° (1942) 0.01" 0.3"
Dec 17 11° 31° -38° (1964) 58° (1998) 0.01" 0.2"
Dec 18 11° 31° -30° (1924) 59° (1917) 0.01" 0.2"
Dec 19 11° 31° -30° (1924) 59° (2004) 0.01" 0.3"
Dec 20 11° 31° -25° (1990) 55° (1900) 0.02" 0.2"
Dec 21 11° 31° -32° (1990) 60° (1933) 0.01" 0.2"
Dec 22 11° 31° -35° (1990) 58° (1933) 0.01" 0.3"
Dec 23 11° 31° -32° (1983) 54° (1936) 0.01" 0.2"
Dec 24 10° 31° -37° (1983) 57° (1919) 0.01" 0.2"
Dec 25 10° 31° -26° (1983) 54° (1890) 0.02" 0.3"
Dec 26 11° 31° -27° (1996) 61° (1980) 0.01" 0.2"
Dec 27 11° 31° -20° (1916) 64° (1980) 0.01" 0.2"
Dec 28 11° 31° -25° (1983) 55° (1897) 0.01" 0.2"
Dec 29 11° 31° -38° (1880) 55° (1933) 0.02" 0.3"
Dec 30 11° 31° -40° (1880) 54° (1917) 0.01" 0.2"
Dec 31 11° 31° -34° (1968) 68° (1937) 0.01" 0.2"
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