Decker, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 33° -40° (1997) 70° (2005) 0.51" NA
February 12° 39° -38° (1936) 80° (1940) 0.38" NA
March 21° 48° -24° (1978) 80° (1978) 0.86" NA
April 30° 58° -14° (1936) 88° (1989) 1.56" NA
May 39° 67° 7° (1999) 96° (1980) 2.68" NA
June 48° 78° 28° (1998) 106° (1936) 2.49" NA
July 53° 87° 11° (1955) 109° (2002) 1.25" NA
August 51° 87° 29° (1920) 105° (2001) 0.84" NA
September 41° 75° 4° (1984) 104° (1954) 1.38" NA
October 30° 62° -18° (1991) 92° (1992) 1.3" NA
November 18° 45° -26° (1985) 80° (1999) 0.67" NA
December 36° -44° (1989) 78° (1939) 0.5" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Apr 1 26° 53° 1° (1936) 82° (2004) 0.04" NA
Apr 2 26° 53° -14° (1936) 79° (1921) 0.04" NA
Apr 3 26° 54° -3° (1936) 77° (1921) 0.04" NA
Apr 4 26° 54° 3° (1936) 78° (1959) 0.04" NA
Apr 5 27° 54° -9° (1936) 79° (1969) 0.04" NA
Apr 6 27° 55° 2° (1936) 81° (1991) 0.04" NA
Apr 7 27° 55° 5° (1938) 83° (1930) 0.04" NA
Apr 8 28° 56° 7° (1997) 79° (1930) 0.04" NA
Apr 9 28° 56° 1° (1973) 76° (1977) 0.04" NA
Apr 10 28° 56° 10° (1933) 82° (1996) 0.05" NA
Apr 11 28° 57° 0° (1997) 79° (1931) 0.05" NA
Apr 12 29° 57° -1° (1997) 80° (1949) 0.05" NA
Apr 13 29° 57° 6° (1997) 81° (2003) 0.05" NA
Apr 14 29° 57° 5° (1983) 80° (1942) 0.05" NA
Apr 15 30° 58° 8° (1973) 85° (2002) 0.05" NA
Apr 16 30° 58° 16° (1951) 84° (1962) 0.05" NA
Apr 17 30° 58° 17° (1959) 82° (1942) 0.05" NA
Apr 18 31° 59° 17° (2001) 84° (1987) 0.05" NA
Apr 19 31° 59° 10° (1927) 84° (1987) 0.05" NA
Apr 20 31° 59° 11° (1966) 85° (1962) 0.06" NA
Apr 21 31° 60° 4° (1927) 85° (1980) 0.06" NA
Apr 22 32° 60° 10° (1951) 88° (1989) 0.06" NA
Apr 23 32° 60° 17° (1968) 85° (1989) 0.06" NA
Apr 24 32° 61° 16° (1958) 81° (1998) 0.06" NA
Apr 25 33° 61° 15° (1950) 84° (1962) 0.06" NA
Apr 26 33° 61° 12° (2006) 84° (1946) 0.06" NA
Apr 27 33° 62° 6° (1984) 84° (1952) 0.07" NA
Apr 28 33° 62° 18° (1994) 84° (1952) 0.07" NA
Apr 29 34° 62° 17° (1994) 86° (1939) 0.07" NA
Apr 30 34° 63° 10° (1950) 86° (1992) 0.07" NA
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