Iron Mountain, Wyoming
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 13° 36° -23° (2002) 62° (1997) 0.49" 8.4"
February 15° 38° -28° (2006) 64° (1981) 0.64" 7.9"
March 20° 46° -16° (2006) 73° (1989) 1.11" 10.5"
April 28° 55° -2° (1975) 81° (1981) 2.03" 9.9"
May 36° 65° 10° (1967) 90° (1969) 2.46" 2.2"
June 44° 75° 28° (2002) 98° (1994) 2.17" 0"
July 51° 83° 34° (1968) 99° (1995) 1.61" 0"
August 50° 81° 32° (1966) 98° (1979) 1.42" 0"
September 40° 71° 9° (1985) 93° (1978) 1.22" 0.7"
October 30° 59° -8° (2002) 85° (1997) 1.25" 5.6"
November 21° 44° -17° (1993) 75° (1999) 0.95" 11.4"
December 13° 35° -30° (1983) 68° (1999) 0.63" 11.8"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 46° 77° 36° (1980) 90° (1995) 0.04" 0"
Sep 2 46° 77° 32° (2006) 89° (1983) 0.04" 0"
Sep 3 45° 76° 23° (2006) 90° (1978) 0.04" 0"
Sep 4 45° 76° 30° (1964) 91° (1978) 0.03" 0"
Sep 5 44° 76° 35° (1968) 93° (1978) 0.04" 0"
Sep 6 44° 75° 35° (1983) 93° (1978) 0.04" 0.1"
Sep 7 44° 75° 29° (2001) 93° (1978) 0.04" 0"
Sep 8 43° 74° 32° (2001) 89° (1979) 0.05" 0"
Sep 9 43° 74° 31° (2001) 89° (1979) 0.04" 0"
Sep 10 42° 74° 31° (2001) 88° (1979) 0.04" 0"
Sep 11 42° 73° 28° (2007) 87° (1968) 0.04" 0"
Sep 12 42° 73° 28° (1974) 89° (1990) 0.04" 0"
Sep 13 41° 72° 27° (1970) 87° (1990) 0.04" 0"
Sep 14 41° 72° 28° (1993) 88° (1995) 0.04" 0"
Sep 15 40° 72° 30° (1971) 86° (1990) 0.04" 0"
Sep 16 40° 71° 21° (1965) 89° (2000) 0.04" 0.1"
Sep 17 40° 71° 19° (1965) 90° (2000) 0.04" 0"
Sep 18 39° 70° 25° (1965) 89° (2000) 0.04" 0"
Sep 19 39° 70° 26° (1991) 84° (1980) 0.04" 0"
Sep 20 38° 69° 23° (1983) 89° (2010) 0.04" 0"
Sep 21 38° 69° 21° (1983) 83° (2007) 0.04" 0.1"
Sep 22 38° 69° 25° (1995) 82° (1967) 0.04" 0"
Sep 23 37° 68° 23° (2000) 85° (1992) 0.04" 0"
Sep 24 37° 68° 23° (2000) 86° (1992) 0.04" 0.1"
Sep 25 36° 67° 22° (1984) 83° (1987) 0.05" 0"
Sep 26 36° 67° 22° (1972) 85° (1989) 0.04" 0.1"
Sep 27 36° 67° 23° (1996) 86° (2010) 0.04" 0"
Sep 28 35° 66° 20° (1985) 84° (1994) 0.05" 0.1"
Sep 29 35° 66° 17° (1985) 86° (2010) 0.04" 0.1"
Sep 30 35° 65° 9° (1985) 84° (1989) 0.04" 0"
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