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
Oct 1 33° 66° 17° (1959) 90° (1992) 0.04" NA
Oct 2 32° 66° 18° (2004) 86° (1957) 0.03" NA
Oct 3 32° 66° 12° (1999) 88° (1963) 0.03" NA
Oct 4 32° 65° 21° (2000) 87° (1979) 0.03" NA
Oct 5 32° 65° 10° (2000) 84° (1980) 0.03" NA
Oct 6 31° 65° 11° (1952) 86° (1960) 0.03" NA
Oct 7 31° 64° 14° (2000) 88° (1980) 0.03" NA
Oct 8 31° 64° 15° (1985) 87° (1980) 0.03" NA
Oct 9 30° 63° -1° (1985) 82° (1953) 0.03" NA
Oct 10 30° 63° 16° (1959) 85° (1953) 0.02" NA
Oct 11 29° 62° 12° (1959) 88° (1991) 0.02" NA
Oct 12 29° 62° 19° (2002) 84° (1991) 0.02" NA
Oct 13 29° 61° 18° (2002) 85° (1964) 0.02" NA
Oct 14 28° 61° 18° (1974) 85° (1964) 0.02" NA
Oct 15 28° 60° 11° (1976) 85° (1961) 0.02" NA
Oct 16 28° 60° 11° (1989) 86° (1961) 0.02" NA
Oct 17 27° 59° 15° (1969) 82° (1997) 0.02" NA
Oct 18 27° 59° 8° (1991) 85° (1958) 0.02" NA
Oct 19 26° 58° 16° (1949) 83° (2003) 0.02" NA
Oct 20 26° 57° 18° (1949) 81° (2003) 0.02" NA
Oct 21 25° 57° 14° (1990) 77° (1967) 0.02" NA
Oct 22 25° 56° 15° (1974) 83° (2003) 0.02" NA
Oct 23 24° 56° 12° (1990) 77° (1960) 0.02" NA
Oct 24 24° 55° 10° (2002) 79° (1992) 0.02" NA
Oct 25 23° 54° 10° (2002) 82° (1990) 0.02" NA
Oct 26 23° 54° 10° (2001) 78° (1966) 0.01" NA
Oct 27 23° 53° 10° (1991) 73° (1983) 0.01" NA
Oct 28 22° 52° -2° (1984) 76° (1953) 0.01" NA
Oct 29 22° 51° -24° (1991) 75° (1962) 0.01" NA
Oct 30 21° 51° -20° (1991) 73° (1983) 0.01" NA
Oct 31 20° 50° -2° (1984) 72° (1967) 0.01" NA
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