Iron Mountain, Wyoming
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 12° 34° -23° (2002) 62° (1997) 0.64" 10.2"
February 15° 38° -28° (2006) 64° (1981) 0.59" 9.8"
March 21° 46° -16° (2006) 73° (1989) 0.96" 15.2"
April 30° 55° -2° (1975) 81° (1981) 1.94" 9.7"
May 38° 65° 10° (1967) 90° (1969) 2.68" 4.1"
June 47° 77° 28° (2002) 98° (1994) 1.95" 0.1"
July 53° 84° 34° (1968) 99° (1995) 1.64" 0"
August 52° 82° 32° (1966) 98° (1979) 1.48" 0"
September 41° 73° 9° (1985) 93° (1978) 1.24" 2.2"
October 31° 61° -8° (2002) 85° (1997) 1.16" 7.1"
November 20° 43° -17° (1993) 75° (1999) 0.96" 10.5"
December 14° 35° -30° (1983) 68° (1999) 0.62" 11.7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 16° 38° -18° (1985) 68° (1999) 0.02" NA
Dec 2 16° 37° -7° (1985) 64° (1998) 0.02" NA
Dec 3 15° 37° -5° (1978) 61° (1980) 0.02" NA
Dec 4 15° 37° -5° (1972) 61° (1998) 0.02" NA
Dec 5 15° 37° -18° (1972) 62° (1998) 0.02" NA
Dec 6 15° 37° -17° (1972) 60° (1965) 0.02" NA
Dec 7 15° 37° -8° (1972) 64° (1991) 0.02" NA
Dec 8 15° 36° -17° (1972) 57° (1965) 0.02" NA
Dec 9 15° 36° -14° (1977) 60° (1981) 0.02" NA
Dec 10 14° 36° -18° (1972) 62° (1996) 0.02" NA
Dec 11 14° 36° -19° (1985) 59° (1995) 0.02" NA
Dec 12 14° 36° -6° (2000) 54° (1995) 0.02" NA
Dec 13 14° 36° -6° (1967) 55° (1995) 0.02" NA
Dec 14 14° 36° -2° (1984) 56° (1969) 0.02" NA
Dec 15 14° 35° -5° (1967) 53° (1969) 0.02" NA
Dec 16 14° 35° -17° (1964) 62° (2006) 0.02" NA
Dec 17 13° 35° -29° (1964) 62° (1980) 0.02" NA
Dec 18 13° 35° -13° (1983) 55° (1980) 0.02" NA
Dec 19 13° 35° -15° (1990) 50° (1966) 0.02" NA
Dec 20 13° 35° -26° (1990) 52° (1981) 0.02" NA
Dec 21 13° 35° -28° (1990) 55° (1969) 0.02" NA
Dec 22 13° 35° -28° (1989) 56° (1964) 0.02" NA
Dec 23 13° 35° -30° (1983) 56° (1964) 0.02" NA
Dec 24 13° 35° -24° (1983) 51° (1971) 0.02" NA
Dec 25 13° 34° -12° (1987) 55° (1971) 0.02" NA
Dec 26 13° 34° -4° (1978) 55° (1971) 0.02" NA
Dec 27 12° 34° -5° (1967) 62° (1980) 0.02" NA
Dec 28 12° 34° -14° (1983) 57° (1980) 0.02" NA
Dec 29 12° 34° -18° (1990) 56° (1965) 0.02" NA
Dec 30 12° 34° -25° (1990) 57° (1980) 0.02" NA
Dec 31 12° 34° -14° (1968) 55° (1980) 0.02" NA
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