Decker, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 35° -40° (1997) 70° (2005) 0.36" 4.6"
February 13° 39° -38° (1936) 80° (1940) 0.38" 3"
March 21° 49° -24° (1978) 80° (1978) 0.79" 5.1"
April 30° 58° -14° (1936) 88° (1989) 1.25" 4.7"
May 38° 67° 7° (1999) 96° (1980) 2.51" 0.6"
June 48° 77° 28° (1998) 106° (1936) 2.49" 0"
July 54° 88° 11° (1955) 109° (2002) 1.17" 0"
August 51° 88° 29° (1920) 105° (2001) 0.67" 0"
September 40° 76° 4° (1984) 104° (1954) 1.46" 0.1"
October 29° 61° -18° (1991) 92° (1992) 1.28" 2"
November 18° 46° -26° (1985) 80° (1999) 0.54" 3.2"
December 35° -44° (1989) 78° (1939) 0.37" 4"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Oct 1 34° 68° 16° (1985) 92° (1963) 0.05" 0.1"
Oct 2 33° 67° 21° (1985) 92° (1992) 0.05" 0"
Oct 3 33° 67° 19° (1968) 90° (1992) 0.05" 0.1"
Oct 4 33° 66° 21° (1964) 91° (1992) 0.05" 0"
Oct 5 32° 66° 21° (1957) 92° (1963) 0.05" 0.1"
Oct 6 32° 65° 7° (1952) 88° (1963) 0.05" 0"
Oct 7 32° 65° 14° (2000) 86° (1980) 0.05" 0.1"
Oct 8 32° 64° 18° (1985) 87° (1954) 0.05" 0"
Oct 9 31° 64° 13° (1993) 85° (1928) 0.04" 0.1"
Oct 10 31° 63° 6° (2009) 88° (2003) 0.05" 0.1"
Oct 11 31° 63° 13° (2009) 88° (1996) 0.04" 0"
Oct 12 30° 63° 15° (2009) 86° (1991) 0.05" 0.1"
Oct 13 30° 62° 6° (1969) 84° (1958) 0.04" 0"
Oct 14 30° 62° 8° (1969) 87° (1996) 0.04" 0.1"
Oct 15 30° 61° 18° (1970) 87° (1958) 0.05" 0.1"
Oct 16 29° 61° 9° (1992) 86° (1958) 0.05" 0.1"
Oct 17 29° 61° 8° (1930) 89° (1991) 0.04" 0.1"
Oct 18 29° 60° 14° (1925) 88° (2003) 0.04" 0.1"
Oct 19 28° 60° 9° (1976) 85° (1947) 0.04" 0"
Oct 20 28° 59° 12° (1932) 89° (2003) 0.04" 0.1"
Oct 21 28° 59° 13° (1984) 82° (1927) 0.04" 0.1"
Oct 22 28° 58° 13° (1984) 86° (1992) 0.03" 0"
Oct 23 27° 58° 11° (1987) 84° (2003) 0.04" 0.1"
Oct 24 27° 58° 12° (1972) 80° (1948) 0.03" 0.1"
Oct 25 27° 57° 7° (2001) 81° (2007) 0.04" 0"
Oct 26 26° 57° 9° (1997) 82° (1977) 0.03" 0.1"
Oct 27 26° 56° 8° (1954) 78° (1944) 0.03" 0"
Oct 28 26° 56° -8° (1925) 83° (1937) 0.03" 0.1"
Oct 29 25° 55° -1° (1925) 84° (1990) 0.03" 0.1"
Oct 30 25° 55° -18° (1991) 81° (1968) 0.03" 0"
Oct 31 25° 54° -4° (1991) 81° (1950) 0.03" 0.1"
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