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
Mar 1 16° 43° -19° (1947) 73° (1992) 0.02" NA
Mar 2 16° 43° -17° (1947) 71° (1992) 0.02" NA
Mar 3 17° 44° -24° (1978) 68° (1992) 0.02" NA
Mar 4 17° 44° -21° (1989) 70° (1992) 0.02" NA
Mar 5 17° 44° -24° (1955) 66° (1987) 0.02" NA
Mar 6 18° 44° -19° (1920) 68° (1987) 0.02" NA
Mar 7 18° 45° -17° (1920) 72° (1987) 0.02" NA
Mar 8 18° 45° -19° (1932) 64° (1977) 0.02" NA
Mar 9 19° 45° -21° (1932) 60° (1942) 0.02" NA
Mar 10 19° 46° -23° (1932) 71° (2005) 0.02" NA
Mar 11 19° 46° -24° (1932) 70° (1934) 0.02" NA
Mar 12 19° 46° -20° (1956) 72° (2005) 0.03" NA
Mar 13 20° 47° -10° (1950) 66° (1938) 0.03" NA
Mar 14 20° 47° -7° (1997) 70° (1934) 0.03" NA
Mar 15 20° 47° -13° (1956) 67° (1999) 0.03" NA
Mar 16 21° 48° -12° (1955) 72° (1992) 0.03" NA
Mar 17 21° 48° -13° (1943) 77° (1994) 0.03" NA
Mar 18 21° 48° -12° (1923) 72° (2007) 0.03" NA
Mar 19 22° 49° -8° (1943) 73° (1946) 0.03" NA
Mar 20 22° 49° -7° (1965) 73° (1997) 0.03" NA
Mar 21 22° 49° -11° (1955) 73° (1928) 0.03" NA
Mar 22 23° 50° -4° (1971) 77° (1928) 0.03" NA
Mar 23 23° 50° -19° (1965) 73° (1926) 0.03" NA
Mar 24 23° 50° -11° (1990) 77° (1993) 0.03" NA
Mar 25 24° 51° -17° (1955) 78° (1993) 0.03" NA
Mar 26 24° 51° -17° (1965) 75° (1999) 0.03" NA
Mar 27 24° 51° -6° (1937) 79° (2004) 0.03" NA
Mar 28 24° 52° -2° (1931) 75° (1986) 0.04" NA
Mar 29 25° 52° -11° (1975) 77° (1943) 0.04" NA
Mar 30 25° 52° -17° (1936) 77° (1978) 0.04" NA
Mar 31 25° 53° -7° (1936) 80° (1978) 0.04" NA
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