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
Mar 1 19° 42° -15° (1919) 63° (1905) 0.02" NA
Mar 2 20° 42° -15° (1976) 67° (1994) 0.02" NA
Mar 3 20° 43° -20° (1976) 68° (1921) 0.02" NA
Mar 4 20° 43° -19° (1989) 71° (1987) 0.02" NA
Mar 5 21° 43° -24° (1945) 73° (1987) 0.02" NA
Mar 6 21° 43° -20° (1920) 65° (1987) 0.02" NA
Mar 7 21° 44° -24° (1951) 66° (1986) 0.02" NA
Mar 8 21° 44° -26° (1951) 63° (2004) 0.02" NA
Mar 9 22° 44° -19° (1932) 68° (1972) 0.02" NA
Mar 10 22° 45° -24° (1951) 70° (1983) 0.02" NA
Mar 11 22° 45° -16° (1969) 69° (2005) 0.02" NA
Mar 12 23° 45° -12° (1950) 74° (2007) 0.02" NA
Mar 13 23° 46° -14° (1969) 69° (2003) 0.02" NA
Mar 14 23° 46° -13° (1906) 67° (1999) 0.02" NA
Mar 15 23° 46° -20° (1906) 72° (1994) 0.02" NA
Mar 16 24° 47° -10° (1906) 70° (1994) 0.02" NA
Mar 17 24° 47° -9° (1906) 71° (2007) 0.02" NA
Mar 18 24° 47° -13° (1943) 71° (2004) 0.02" NA
Mar 19 24° 48° -8° (1906) 71° (1997) 0.02" NA
Mar 20 25° 48° -11° (1913) 71° (1910) 0.02" NA
Mar 21 25° 48° -11° (1913) 73° (1928) 0.02" NA
Mar 22 25° 49° -16° (1898) 69° (1993) 0.02" NA
Mar 23 25° 49° -10° (1964) 74° (1993) 0.02" NA
Mar 24 26° 49° -24° (1955) 74° (2007) 0.02" NA
Mar 25 26° 50° -30° (1955) 74° (1999) 0.02" NA
Mar 26 26° 50° -22° (1955) 73° (1978) 0.02" NA
Mar 27 26° 51° -11° (1955) 75° (1986) 0.02" NA
Mar 28 27° 51° -3° (1954) 73° (1986) 0.02" NA
Mar 29 27° 51° -10° (1954) 77° (1978) 0.02" NA
Mar 30 27° 52° -13° (1936) 78° (2004) 0.02" NA
Mar 31 27° 52° -3° (1936) 70° (1964) 0.03" NA
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