Swan Lake, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 20° 33° -30° (1950) 58° (1953) 1.11" NA
February 24° 38° -27° (1936) 66° (1995) 0.88" NA
March 29° 47° -10° (1956) 74° (1986) 1.04" NA
April 35° 57° -1° (1936) 84° (1926) 1.33" NA
May 42° 66° 17° (1954) 91° (1986) 2.32" NA
June 49° 74° 26° (1920) 98° (1919) 2.14" NA
July 54° 81° 37° (1973) 104° (1960) 1.31" NA
August 54° 81° 31° (1910) 101° (1961) 1.32" NA
September 45° 70° 16° (1926) 93° (1931) 1.3" NA
October 37° 57° 1° (1935) 83° (1963) 1.07" NA
November 28° 41° -21° (1959) 71° (1999) 1.15" NA
December 22° 33° -25° (1964) 62° (1956) 1.18" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 24° 36° -9° (1985) 57° (1925) 0.04" NA
Dec 2 24° 35° -8° (1985) 55° (1941) 0.04" NA
Dec 3 24° 35° -2° (1919) 62° (1956) 0.04" NA
Dec 4 23° 35° -7° (1972) 59° (1965) 0.04" NA
Dec 5 23° 35° -10° (1972) 62° (1910) 0.04" NA
Dec 6 23° 34° -9° (1972) 53° (1954) 0.04" NA
Dec 7 23° 34° -8° (1972) 54° (1938) 0.04" NA
Dec 8 23° 34° -16° (1972) 60° (1938) 0.04" NA
Dec 9 22° 34° -18° (1919) 61° (1957) 0.04" NA
Dec 10 22° 34° -12° (1972) 62° (1910) 0.04" NA
Dec 11 22° 33° -13° (1932) 57° (1921) 0.04" NA
Dec 12 22° 33° -14° (1919) 56° (1921) 0.04" NA
Dec 13 22° 33° -16° (1919) 50° (1976) 0.04" NA
Dec 14 22° 33° -5° (1926) 52° (2002) 0.04" NA
Dec 15 22° 33° -1° (1919) 58° (1980) 0.04" NA
Dec 16 21° 33° -11° (1964) 59° (1980) 0.04" NA
Dec 17 21° 33° -25° (1964) 58° (1980) 0.04" NA
Dec 18 21° 33° -13° (1964) 50° (1980) 0.04" NA
Dec 19 21° 32° -8° (1990) 53° (1936) 0.04" NA
Dec 20 21° 32° -11° (1990) 54° (1917) 0.04" NA
Dec 21 21° 32° -17° (1990) 60° (1910) 0.04" NA
Dec 22 21° 32° -21° (1983) 50° (1933) 0.04" NA
Dec 23 21° 32° -22° (1983) 54° (1910) 0.04" NA
Dec 24 21° 32° -23° (1983) 59° (1925) 0.04" NA
Dec 25 20° 32° -15° (1983) 54° (1950) 0.04" NA
Dec 26 20° 32° -15° (1983) 58° (1980) 0.03" NA
Dec 27 20° 32° -8° (1948) 58° (1980) 0.03" NA
Dec 28 20° 32° -5° (1990) 51° (1965) 0.03" NA
Dec 29 20° 32° -24° (1990) 55° (1929) 0.03" NA
Dec 30 20° 32° -22° (1990) 52° (1962) 0.03" NA
Dec 31 20° 32° -22° (1927) 50° (1920) 0.03" NA
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