Swan Valley, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 12° 32° -43° (1962) 55° (2005) 2.13" 28.8"
February 13° 38° -45° (1989) 61° (1968) 1.64" 18"
March 21° 46° -29° (1965) 73° (2004) 1.35" 13.8"
April 27° 55° 3° (1975) 86° (1987) 1.1" 3.2"
May 35° 65° 13° (1954) 93° (1986) 1.95" 0.6"
June 41° 73° 23° (2001) 94° (2007) 2.43" 0.3"
July 44° 83° 28° (1973) 102° (2007) 1.14" 0"
August 43° 83° 27° (1980) 101° (1961) 1.2" 0"
September 36° 73° 15° (2000) 94° (2000) 1.4" 0"
October 29° 58° -10° (1971) 84° (1992) 1.56" 1.8"
November 22° 40° -31° (1959) 65° (1981) 2.29" 16.7"
December 12° 30° -44° (1990) 57° (1957) 2.05" 29.5"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jan 1 11° 30° -42° (1979) 46° (1959) 0.07" 1.1"
Jan 2 11° 30° -28° (1968) 47° (1998) 0.08" 1"
Jan 3 11° 30° -36° (1950) 48° (1963) 0.08" 1.1"
Jan 4 11° 30° -34° (1949) 51° (1984) 0.08" 1.1"
Jan 5 11° 31° -37° (2004) 51° (1984) 0.07" 1.1"
Jan 6 12° 31° -40° (2004) 46° (1984) 0.08" 1.1"
Jan 7 12° 31° -35° (1979) 46° (1984) 0.07" 1"
Jan 8 12° 31° -32° (1973) 46° (2002) 0.08" 1.1"
Jan 9 12° 31° -34° (1962) 50° (1953) 0.08" 1.1"
Jan 10 12° 31° -38° (1962) 47° (2007) 0.07" 1.1"
Jan 11 12° 31° -38° (1963) 50° (1983) 0.08" 1"
Jan 12 12° 31° -34° (1963) 48° (1983) 0.08" 1"
Jan 13 12° 31° -32° (1997) 46° (1983) 0.07" 1"
Jan 14 12° 32° -26° (1997) 45° (1980) 0.07" 1"
Jan 15 12° 32° -25° (2005) 52° (1961) 0.07" 0.9"
Jan 16 12° 32° -27° (1957) 50° (1958) 0.07" 0.9"
Jan 17 13° 32° -27° (1957) 44° (1961) 0.07" 0.9"
Jan 18 13° 32° -31° (1950) 47° (1981) 0.07" 0.9"
Jan 19 13° 32° -31° (1963) 51° (2005) 0.06" 0.9"
Jan 20 13° 32° -39° (1949) 51° (2005) 0.07" 0.8"
Jan 21 13° 33° -43° (1962) 51° (1968) 0.07" 0.8"
Jan 22 13° 33° -33° (1962) 42° (2005) 0.06" 0.8"
Jan 23 13° 33° -36° (1949) 55° (2005) 0.06" 0.8"
Jan 24 13° 33° -40° (1949) 54° (2005) 0.06" 0.8"
Jan 25 13° 33° -41° (1957) 55° (2005) 0.06" 0.8"
Jan 26 13° 33° -43° (1957) 48° (2005) 0.06" 0.8"
Jan 27 13° 33° -38° (1957) 48° (2005) 0.06" 0.8"
Jan 28 12° 34° -39° (1951) 55° (1962) 0.06" 0.8"
Jan 29 12° 34° -40° (1951) 54° (1960) 0.05" 0.8"
Jan 30 12° 34° -38° (1951) 54° (1962) 0.06" 0.7"
Jan 31 12° 34° -40° (1950) 54° (1962) 0.06" 0.8"
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