Chinook, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 26° -50° (1954) 67° (1984) 0.54" NA
February 34° -44° (1994) 75° (1995) 0.32" NA
March 17° 45° -36° (1960) 82° (2004) 0.56" NA
April 30° 59° -10° (1986) 92° (1980) 0.99" NA
May 41° 69° 11° (1954) 96° (1980) 2.29" NA
June 50° 78° 28° (1979) 104° (1988) 2.29" NA
July 53° 84° 36° (1987) 105° (1960) 1.66" NA
August 51° 84° 29° (1988) 109° (1961) 1.34" NA
September 39° 72° 13° (1995) 104° (1998) 1.43" NA
October 27° 59° -24° (1991) 90° (1992) 0.66" NA
November 13° 40° -38° (1985) 79° (1999) 0.47" NA
December 30° -50° (1989) 66° (1998) 0.51" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 33° -28° (1985) 66° (1951) 0.01" NA
Dec 2 33° -36° (1985) 66° (1949) 0.01" NA
Dec 3 33° -30° (1972) 64° (1949) 0.01" NA
Dec 4 33° -34° (1972) 62° (1989) 0.01" NA
Dec 5 32° -30° (1972) 57° (1963) 0.01" NA
Dec 6 32° -35° (1972) 55° (1981) 0.01" NA
Dec 7 32° -37° (1956) 57° (1990) 0.01" NA
Dec 8 32° -40° (1972) 62° (1990) 0.01" NA
Dec 9 31° -37° (1972) 58° (1957) 0.01" NA
Dec 10 31° -25° (2000) 57° (1984) 0.01" NA
Dec 11 31° -25° (1963) 58° (2004) 0.01" NA
Dec 12 31° -29° (2000) 60° (2004) 0.02" NA
Dec 13 30° -26° (1985) 59° (1998) 0.02" NA
Dec 14 30° -28° (1963) 66° (1998) 0.02" NA
Dec 15 30° -21° (1951) 65° (1962) 0.02" NA
Dec 16 30° -31° (1964) 65° (1980) 0.02" NA
Dec 17 29° -35° (1964) 60° (1976) 0.02" NA
Dec 18 29° -38° (1983) 61° (1988) 0.02" NA
Dec 19 29° -25° (1989) 61° (1954) 0.02" NA
Dec 20 29° -31° (1990) 62° (2004) 0.02" NA
Dec 21 28° -40° (1989) 61° (1954) 0.02" NA
Dec 22 28° -50° (1989) 58° (1954) 0.02" NA
Dec 23 28° -36° (1983) 53° (1963) 0.02" NA
Dec 24 28° -46° (1983) 54° (1963) 0.02" NA
Dec 25 28° -35° (1983) 60° (1999) 0.02" NA
Dec 26 27° -29° (1983) 58° (1980) 0.02" NA
Dec 27 27° -25° (1983) 63° (1980) 0.02" NA
Dec 28 27° -30° (1968) 59° (1999) 0.02" NA
Dec 29 27° -41° (1968) 63° (1956) 0.02" NA
Dec 30 27° -35° (1978) 60° (1999) 0.02" NA
Dec 31 26° -39° (1984) 59° (1958) 0.02" NA
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