Swan Valley, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 11° 30° -43° (1962) 55° (2005) 2.44" NA
February 14° 37° -45° (1989) 61° (1968) 1.65" NA
March 21° 44° -29° (1965) 73° (2004) 1.3" NA
April 28° 54° 3° (1975) 86° (1987) 1.06" NA
May 36° 63° 13° (1954) 93° (1986) 1.98" NA
June 42° 72° 23° (2001) 94° (2007) 2.17" NA
July 45° 81° 28° (1973) 102° (2007) 1.21" NA
August 44° 81° 27° (1980) 101° (1961) 1.39" NA
September 37° 70° 15° (2000) 94° (2000) 1.32" NA
October 29° 57° -10° (1971) 84° (1992) 1.36" NA
November 22° 38° -31° (1959) 65° (1981) 2.24" NA
December 12° 29° -44° (1990) 57° (1957) 2.54" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Aug 1 45° 83° 30° (1953) 95° (1949) 0.04" NA
Aug 2 46° 83° 30° (1987) 97° (1961) 0.04" NA
Aug 3 46° 83° 33° (1963) 99° (1961) 0.04" NA
Aug 4 46° 83° 32° (1959) 101° (1961) 0.04" NA
Aug 5 46° 83° 34° (1958) 101° (1961) 0.04" NA
Aug 6 45° 83° 33° (1959) 96° (1949) 0.04" NA
Aug 7 45° 83° 30° (1988) 97° (1983) 0.04" NA
Aug 8 45° 83° 34° (1949) 95° (1991) 0.04" NA
Aug 9 45° 83° 30° (1949) 96° (1991) 0.04" NA
Aug 10 45° 83° 31° (1997) 95° (1984) 0.04" NA
Aug 11 45° 83° 33° (2007) 96° (1984) 0.04" NA
Aug 12 45° 83° 30° (1966) 92° (1961) 0.04" NA
Aug 13 45° 83° 33° (1957) 93° (1981) 0.04" NA
Aug 14 45° 83° 28° (1949) 96° (1990) 0.04" NA
Aug 15 45° 82° 33° (1949) 98° (1990) 0.04" NA
Aug 16 45° 82° 33° (1963) 93° (1994) 0.04" NA
Aug 17 44° 82° 29° (1969) 94° (1967) 0.05" NA
Aug 18 44° 82° 31° (1970) 94° (1977) 0.05" NA
Aug 19 44° 81° 32° (1952) 95° (1961) 0.05" NA
Aug 20 44° 81° 31° (1987) 94° (1961) 0.05" NA
Aug 21 44° 81° 30° (1988) 93° (1967) 0.05" NA
Aug 22 43° 81° 29° (1966) 95° (1969) 0.05" NA
Aug 23 43° 80° 29° (1988) 98° (1969) 0.05" NA
Aug 24 43° 80° 30° (1971) 99° (1969) 0.05" NA
Aug 25 43° 80° 28° (1992) 99° (1969) 0.05" NA
Aug 26 43° 79° 28° (1952) 94° (1966) 0.05" NA
Aug 27 42° 79° 28° (1955) 95° (1981) 0.05" NA
Aug 28 42° 78° 27° (1952) 95° (1981) 0.05" NA
Aug 29 42° 78° 27° (1980) 94° (1986) 0.05" NA
Aug 30 41° 78° 27° (1959) 93° (1955) 0.05" NA
Aug 31 41° 77° 27° (1969) 94° (1991) 0.05" NA
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