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
Apr 1 28° 52° -10° (1936) 75° (1966) 0.02" NA
Apr 2 28° 53° -5° (1936) 76° (1990) 0.02" NA
Apr 3 28° 53° 7° (1880) 76° (1992) 0.02" NA
Apr 4 28° 53° 6° (1880) 75° (1987) 0.02" NA
Apr 5 28° 54° 4° (1936) 77° (1960) 0.02" NA
Apr 6 29° 54° 5° (1975) 75° (1988) 0.02" NA
Apr 7 29° 54° 7° (1923) 77° (1930) 0.02" NA
Apr 8 29° 55° 10° (1982) 79° (1996) 0.03" NA
Apr 9 29° 55° 12° (1959) 79° (1996) 0.03" NA
Apr 10 30° 55° 12° (1929) 75° (1985) 0.03" NA
Apr 11 30° 56° 5° (1940) 76° (1949) 0.03" NA
Apr 12 30° 56° 6° (1881) 77° (1904) 0.03" NA
Apr 13 30° 56° 12° (1986) 76° (2004) 0.03" NA
Apr 14 31° 56° 10° (1986) 78° (1963) 0.03" NA
Apr 15 31° 57° 9° (1896) 78° (1988) 0.03" NA
Apr 16 31° 57° 6° (1896) 80° (1994) 0.03" NA
Apr 17 32° 57° 9° (1896) 80° (1994) 0.03" NA
Apr 18 32° 58° 9° (1951) 80° (1936) 0.03" NA
Apr 19 32° 58° 7° (1951) 85° (1962) 0.03" NA
Apr 20 32° 58° 3° (1927) 85° (1980) 0.03" NA
Apr 21 33° 59° 14° (1951) 82° (1942) 0.03" NA
Apr 22 33° 59° 17° (1968) 83° (1906) 0.03" NA
Apr 23 33° 59° 14° (1931) 82° (1891) 0.04" NA
Apr 24 33° 60° 20° (1958) 83° (1910) 0.04" NA
Apr 25 34° 60° 19° (1880) 86° (1910) 0.04" NA
Apr 26 34° 60° 21° (1961) 84° (1910) 0.04" NA
Apr 27 34° 60° 15° (1907) 83° (1987) 0.04" NA
Apr 28 35° 61° 10° (1907) 82° (1939) 0.04" NA
Apr 29 35° 61° 14° (1954) 86° (1992) 0.04" NA
Apr 30 35° 61° 13° (1909) 83° (1987) 0.04" NA
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