Fort Benton, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 10° 35° -49° (1969) 71° (1992) 0.45" 7.2"
February 13° 39° -37° (1994) 77° (1992) 0.39" 5.9"
March 20° 49° -35° (1951) 83° (2004) 0.83" 6"
April 30° 60° -8° (1975) 93° (1980) 1.18" 2.9"
May 41° 69° 16° (1954) 97° (1988) 2.2" 0.6"
June 49° 77° 30° (1979) 104° (1988) 2.3" 0.1"
July 53° 86° 35° (1973) 106° (1960) 1.34" 0"
August 52° 85° 29° (1992) 109° (1961) 1.34" 0"
September 41° 73° 17° (1985) 100° (2001) 1.29" 0"
October 30° 61° -15° (1991) 94° (1992) 0.83" 1.6"
November 20° 46° -29° (1985) 79° (1999) 0.53" 5.8"
December 11° 35° -45° (1983) 67° (1987) 0.54" 9.3"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 47° 79° 35° (1972) 98° (1983) 0.04" 0"
Sep 2 46° 79° 28° (1974) 100° (1998) 0.04" 0"
Sep 3 46° 79° 30° (1962) 97° (1950) 0.05" 0"
Sep 4 45° 78° 28° (1962) 98° (2009) 0.05" 0"
Sep 5 45° 78° 32° (1956) 99° (1967) 0.05" 0"
Sep 6 45° 77° 28° (1992) 98° (1980) 0.05" 0"
Sep 7 44° 77° 32° (1965) 100° (1998) 0.05" 0"
Sep 8 44° 76° 31° (1960) 97° (1979) 0.04" 0"
Sep 9 43° 76° 23° (1962) 93° (1981) 0.05" 0"
Sep 10 43° 75° 29° (1992) 94° (1948) 0.04" 0"
Sep 11 43° 75° 24° (1989) 93° (1981) 0.05" 0"
Sep 12 42° 75° 25° (1964) 93° (1953) 0.04" 0"
Sep 13 42° 74° 25° (1949) 95° (1959) 0.04" 0"
Sep 14 41° 74° 22° (1970) 98° (1948) 0.05" 0"
Sep 15 41° 73° 26° (1970) 96° (2000) 0.04" 0"
Sep 16 41° 73° 27° (1969) 94° (2000) 0.04" 0"
Sep 17 40° 72° 26° (1982) 94° (2009) 0.04" 0"
Sep 18 40° 72° 20° (1971) 96° (2009) 0.05" 0"
Sep 19 40° 72° 26° (1964) 92° (1956) 0.04" 0"
Sep 20 39° 71° 20° (1995) 95° (2009) 0.04" 0"
Sep 21 39° 71° 21° (1995) 90° (1979) 0.04" 0"
Sep 22 38° 70° 20° (1961) 90° (1948) 0.04" 0"
Sep 23 38° 70° 28° (1993) 92° (1990) 0.05" 0"
Sep 24 38° 70° 23° (1984) 96° (2001) 0.04" 0"
Sep 25 37° 69° 21° (1984) 100° (2001) 0.04" 0"
Sep 26 37° 69° 24° (1972) 91° (1963) 0.04" 0"
Sep 27 37° 68° 24° (1961) 93° (1957) 0.03" 0"
Sep 28 36° 68° 19° (1972) 89° (1967) 0.04" 0"
Sep 29 36° 68° 17° (1985) 91° (2010) 0.04" 0"
Sep 30 35° 67° 17° (1985) 94° (1992) 0.04" 0"
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