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
Jun 1 44° 71° 33° (2000) 91° (1986) 0.07" NA
Jun 2 44° 71° 33° (1943) 91° (1986) 0.07" NA
Jun 3 45° 71° 31° (1987) 92° (1988) 0.07" NA
Jun 4 45° 71° 31° (1998) 97° (1988) 0.07" NA
Jun 5 45° 72° 33° (1960) 90° (2004) 0.07" NA
Jun 6 45° 72° 33° (1951) 88° (1988) 0.06" NA
Jun 7 46° 72° 31° (1995) 96° (2000) 0.06" NA
Jun 8 46° 73° 32° (1979) 92° (2000) 0.06" NA
Jun 9 46° 73° 31° (1880) 94° (1918) 0.06" NA
Jun 10 46° 73° 30° (1999) 94° (1956) 0.06" NA
Jun 11 47° 74° 35° (1969) 94° (1918) 0.06" NA
Jun 12 47° 74° 33° (1969) 94° (1918) 0.06" NA
Jun 13 47° 74° 30° (1969) 94° (1918) 0.06" NA
Jun 14 47° 74° 34° (1969) 96° (1987) 0.06" NA
Jun 15 48° 75° 35° (1994) 98° (1933) 0.06" NA
Jun 16 48° 75° 36° (1949) 95° (1933) 0.06" NA
Jun 17 48° 75° 34° (1954) 97° (1986) 0.06" NA
Jun 18 48° 76° 33° (1949) 94° (2003) 0.06" NA
Jun 19 48° 76° 36° (1972) 93° (1988) 0.06" NA
Jun 20 49° 76° 32° (1902) 95° (1919) 0.06" NA
Jun 21 49° 77° 33° (1942) 102° (1900) 0.06" NA
Jun 22 49° 77° 33° (1892) 98° (1919) 0.06" NA
Jun 23 49° 77° 35° (1997) 98° (1941) 0.06" NA
Jun 24 49° 78° 36° (1905) 94° (1986) 0.06" NA
Jun 25 50° 78° 36° (1997) 100° (1988) 0.06" NA
Jun 26 50° 78° 37° (1999) 96° (1910) 0.06" NA
Jun 27 50° 79° 37° (1951) 96° (1936) 0.06" NA
Jun 28 50° 79° 35° (1975) 99° (2007) 0.05" NA
Jun 29 50° 79° 33° (1971) 97° (1937) 0.05" NA
Jun 30 50° 80° 34° (1949) 98° (1990) 0.05" NA
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