Greystone, Colorado
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 33° -60° (1979) 56° (1971) 0.83" 11"
February 38° -61° (1985) 66° (1986) 0.9" 10.7"
March 18° 49° -21° (1966) 75° (2004) 1.05" 9.1"
April 26° 59° 0° (1970) 82° (1989) 1.35" 3"
May 33° 69° 10° (2002) 91° (2003) 1.12" 0.8"
June 40° 80° 22° (1973) 96° (1994) 1.14" 0"
July 47° 87° 26° (1968) 102° (1960) 0.85" 0"
August 46° 85° 28° (1992) 98° (2001) 0.98" 0"
September 36° 75° 8° (1985) 94° (1995) 1.4" 0.1"
October 25° 61° -10° (1991) 87° (1993) 1.39" 2"
November 15° 46° -25° (2006) 70° (1999) 1.1" 9.3"
December 34° -50° (1978) 61° (1995) 0.97" 12.4"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 41° 81° 28° (1962) 91° (1995) 0.04" 0"
Sep 2 41° 80° 30° (1959) 94° (1995) 0.04" 0"
Sep 3 40° 80° 24° (1974) 91° (1960) 0.05" 0"
Sep 4 40° 80° 28° (1974) 91° (1995) 0.04" 0"
Sep 5 40° 79° 31° (1971) 94° (1978) 0.04" 0"
Sep 6 39° 79° 30° (1987) 91° (1984) 0.05" 0"
Sep 7 39° 79° 24° (2010) 90° (1959) 0.04" 0"
Sep 8 39° 78° 27° (2010) 89° (1998) 0.05" 0"
Sep 9 38° 78° 20° (1962) 90° (1979) 0.04" 0"
Sep 10 38° 77° 24° (1962) 88° (1959) 0.05" 0"
Sep 11 37° 77° 27° (2010) 88° (1959) 0.04" 0"
Sep 12 37° 77° 27° (2010) 89° (1990) 0.05" 0"
Sep 13 37° 76° 25° (1967) 93° (1990) 0.04" 0"
Sep 14 36° 76° 20° (1993) 93° (1990) 0.05" 0"
Sep 15 36° 75° 21° (1993) 92° (1990) 0.04" 0"
Sep 16 35° 75° 25° (1965) 92° (1990) 0.05" 0"
Sep 17 35° 74° 23° (1965) 87° (1995) 0.04" 0"
Sep 18 35° 74° 20° (1965) 87° (2000) 0.04" 0"
Sep 19 34° 74° 17° (1971) 85° (1962) 0.05" 0"
Sep 20 34° 73° 17° (1983) 89° (2010) 0.05" 0"
Sep 21 33° 73° 16° (1983) 83° (2010) 0.05" 0"
Sep 22 33° 72° 15° (1983) 84° (1966) 0.04" 0"
Sep 23 33° 72° 17° (1995) 84° (1978) 0.05" 0"
Sep 24 32° 71° 17° (1995) 83° (1967) 0.05" 0"
Sep 25 32° 71° 19° (1971) 85° (1987) 0.06" 0"
Sep 26 31° 70° 17° (1970) 84° (1987) 0.05" 0.1"
Sep 27 31° 70° 15° (1999) 83° (1994) 0.05" 0"
Sep 28 31° 69° 14° (1999) 84° (2010) 0.05" 0"
Sep 29 30° 69° 15° (1999) 87° (2010) 0.06" 0"
Sep 30 30° 69° 8° (1985) 84° (1989) 0.05" 0"
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