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
Jan 1 29° -33° (1942) 59° (1939) 0.01" NA
Jan 2 29° -26° (1950) 57° (1939) 0.02" NA
Jan 3 29° -30° (1950) 59° (1893) 0.02" NA
Jan 4 29° -33° (1942) 57° (1893) 0.02" NA
Jan 5 29° -37° (1942) 54° (1903) 0.02" NA
Jan 6 29° -32° (2004) 61° (1914) 0.02" NA
Jan 7 29° -32° (1888) 63° (1902) 0.02" NA
Jan 8 29° -32° (1888) 57° (1885) 0.02" NA
Jan 9 30° -31° (1888) 60° (1953) 0.02" NA
Jan 10 30° -30° (1909) 56° (1990) 0.02" NA
Jan 11 30° -28° (1998) 62° (1953) 0.02" NA
Jan 12 30° -33° (1997) 57° (1959) 0.02" NA
Jan 13 30° -34° (1888) 55° (1945) 0.02" NA
Jan 14 30° -38° (1888) 55° (1999) 0.02" NA
Jan 15 10° 30° -41° (1888) 58° (1974) 0.02" NA
Jan 16 10° 30° -37° (1888) 56° (1974) 0.02" NA
Jan 17 10° 30° -32° (1930) 55° (1919) 0.02" NA
Jan 18 10° 30° -34° (1883) 57° (1919) 0.02" NA
Jan 19 10° 31° -34° (1883) 55° (2005) 0.02" NA
Jan 20 10° 31° -36° (1954) 57° (1950) 0.02" NA
Jan 21 10° 31° -32° (1962) 52° (1950) 0.02" NA
Jan 22 10° 31° -29° (1962) 55° (1919) 0.02" NA
Jan 23 10° 31° -35° (1969) 56° (1931) 0.01" NA
Jan 24 11° 31° -35° (1969) 58° (1953) 0.01" NA
Jan 25 11° 32° -42° (1957) 56° (1953) 0.01" NA
Jan 26 11° 32° -41° (1957) 57° (2003) 0.01" NA
Jan 27 11° 32° -37° (1957) 56° (1983) 0.01" NA
Jan 28 11° 32° -32° (1929) 56° (1931) 0.01" NA
Jan 29 12° 33° -32° (1916) 56° (1962) 0.01" NA
Jan 30 12° 33° -37° (1996) 58° (1989) 0.01" NA
Jan 31 12° 33° -42° (1893) 62° (1992) 0.01" NA
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