Colstrip, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 10° 33° -40° (1954) 69° (2002) 0.58" NA
February 16° 40° -36° (1989) 72° (1982) 0.43" NA
March 24° 48° -27° (1960) 81° (2004) 0.87" NA
April 33° 58° 3° (1997) 90° (1980) 1.34" NA
May 43° 68° 7° (1952) 97° (1988) 2.59" NA
June 52° 78° 28° (1964) 103° (1988) 2.51" NA
July 57° 85° 34° (1951) 108° (2002) 1.35" NA
August 56° 85° 33° (1992) 111° (1961) 1.09" NA
September 46° 73° 19° (1972) 102° (1950) 1.32" NA
October 35° 60° -8° (1991) 94° (1963) 1.35" NA
November 23° 44° -32° (1959) 80° (1999) 0.65" NA
December 14° 36° -38° (1983) 71° (1957) 0.48" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 38° 63° 20° (1954) 84° (1955) 0.07" NA
May 2 38° 63° 18° (2005) 89° (1985) 0.07" NA
May 3 39° 63° 13° (1954) 88° (1986) 0.07" NA
May 4 39° 64° 20° (1967) 87° (1966) 0.07" NA
May 5 39° 64° 22° (1991) 88° (1966) 0.07" NA
May 6 40° 64° 7° (1952) 91° (1966) 0.07" NA
May 7 40° 65° 24° (1959) 90° (1966) 0.08" NA
May 8 40° 65° 27° (1969) 88° (1987) 0.08" NA
May 9 41° 65° 25° (1968) 86° (1987) 0.08" NA
May 10 41° 66° 24° (1952) 88° (1961) 0.08" NA
May 11 41° 66° 18° (1968) 87° (1958) 0.08" NA
May 12 42° 66° 19° (1953) 94° (1960) 0.08" NA
May 13 42° 67° 20° (2004) 92° (2001) 0.08" NA
May 14 42° 67° 24° (1953) 86° (1993) 0.08" NA
May 15 43° 67° 28° (1953) 91° (1978) 0.09" NA
May 16 43° 68° 29° (1960) 90° (1972) 0.09" NA
May 17 43° 68° 31° (1999) 93° (1972) 0.09" NA
May 18 44° 68° 30° (1958) 88° (1972) 0.09" NA
May 19 44° 68° 25° (1997) 92° (1992) 0.09" NA
May 20 44° 69° 28° (1968) 93° (1964) 0.09" NA
May 21 45° 69° 21° (1963) 96° (1980) 0.09" NA
May 22 45° 69° 27° (1963) 96° (1980) 0.09" NA
May 23 45° 70° 28° (1959) 95° (1980) 0.09" NA
May 24 45° 70° 30° (1949) 92° (1985) 0.09" NA
May 25 46° 71° 26° (1953) 85° (1958) 0.09" NA
May 26 46° 71° 32° (1950) 94° (1969) 0.09" NA
May 27 46° 71° 25° (1965) 94° (1969) 0.09" NA
May 28 47° 72° 33° (1952) 94° (1958) 0.09" NA
May 29 47° 72° 32° (1959) 97° (1988) 0.09" NA
May 30 47° 72° 31° (1964) 93° (1958) 0.09" NA
May 31 48° 73° 29° (1954) 90° (1966) 0.09" NA
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