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
Apr 1 24° 53° 5° (1975) 75° (1964) 0.02" NA
Apr 2 24° 53° -3° (1954) 79° (1990) 0.02" NA
Apr 3 25° 54° 2° (2002) 80° (1992) 0.02" NA
Apr 4 25° 54° 5° (2002) 72° (1960) 0.02" NA
Apr 5 26° 54° -1° (1975) 75° (1969) 0.02" NA
Apr 6 26° 55° -10° (1975) 78° (1988) 0.02" NA
Apr 7 26° 55° 8° (1964) 73° (1952) 0.02" NA
Apr 8 27° 56° 11° (1997) 85° (2005) 0.02" NA
Apr 9 27° 56° 6° (1950) 80° (1996) 0.03" NA
Apr 10 28° 57° 2° (1990) 78° (2003) 0.03" NA
Apr 11 28° 57° 9° (1990) 78° (1988) 0.03" NA
Apr 12 29° 58° 12° (1975) 80° (1976) 0.03" NA
Apr 13 29° 58° 13° (1983) 80° (1985) 0.03" NA
Apr 14 29° 59° -10° (1986) 83° (1963) 0.03" NA
Apr 15 30° 59° -1° (1953) 84° (1962) 0.03" NA
Apr 16 30° 59° 14° (1953) 81° (1984) 0.03" NA
Apr 17 31° 60° 11° (1989) 84° (1994) 0.03" NA
Apr 18 31° 60° 9° (1951) 81° (1952) 0.03" NA
Apr 19 32° 61° 7° (1951) 86° (1962) 0.04" NA
Apr 20 32° 61° 16° (1966) 92° (1980) 0.04" NA
Apr 21 32° 61° 8° (1951) 83° (1980) 0.04" NA
Apr 22 33° 62° -9° (1967) 83° (1969) 0.04" NA
Apr 23 33° 62° -3° (1967) 84° (1962) 0.04" NA
Apr 24 33° 62° 10° (1967) 88° (1962) 0.04" NA
Apr 25 34° 63° 14° (2002) 88° (1952) 0.04" NA
Apr 26 34° 63° 13° (1988) 88° (1952) 0.05" NA
Apr 27 34° 63° 15° (1961) 84° (1987) 0.05" NA
Apr 28 35° 64° 14° (1958) 91° (1952) 0.05" NA
Apr 29 35° 64° 10° (1966) 87° (1980) 0.05" NA
Apr 30 35° 64° 12° (1984) 89° (1968) 0.05" NA
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