Greystone, Colorado
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 31° -60° (1979) 56° (1971) 0.86" NA
February 37° -61° (1985) 66° (1986) 0.81" NA
March 18° 47° -21° (1966) 75° (2004) 1.16" NA
April 26° 56° 0° (1970) 82° (1989) 1.41" NA
May 34° 66° 10° (2002) 91° (2003) 1.39" NA
June 41° 78° 22° (1973) 96° (1994) 0.82" NA
July 47° 85° 26° (1968) 102° (1960) 1.02" NA
August 46° 83° 28° (1992) 98° (2001) 0.84" NA
September 36° 73° 8° (1985) 94° (1995) 1.05" NA
October 25° 61° -10° (1991) 87° (1993) 1.44" NA
November 15° 43° -25° (2006) 70° (1999) 1.14" NA
December 33° -50° (1978) 61° (1995) 0.79" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 30° 61° 13° (1972) 90° (2000) 0.05" NA
May 2 30° 62° 16° (1972) 79° (1992) 0.05" NA
May 3 30° 62° 20° (1964) 80° (1985) 0.05" NA
May 4 31° 62° 21° (1964) 81° (2000) 0.05" NA
May 5 31° 62° 21° (1983) 83° (2000) 0.05" NA
May 6 31° 63° 15° (1999) 83° (1966) 0.05" NA
May 7 32° 63° 17° (1999) 83° (1966) 0.05" NA
May 8 32° 63° 19° (1984) 82° (1989) 0.05" NA
May 9 32° 64° 10° (2002) 81° (1987) 0.05" NA
May 10 33° 64° 18° (2002) 81° (1962) 0.05" NA
May 11 33° 65° 19° (1999) 81° (1960) 0.05" NA
May 12 33° 65° 19° (1999) 86° (1960) 0.05" NA
May 13 33° 65° 17° (2000) 85° (1978) 0.05" NA
May 14 34° 66° 22° (1983) 86° (1996) 0.05" NA
May 15 34° 66° 19° (1970) 89° (1978) 0.05" NA
May 16 34° 66° 23° (1974) 87° (1988) 0.05" NA
May 17 34° 67° 23° (1968) 84° (1970) 0.04" NA
May 18 35° 67° 23° (1968) 85° (1970) 0.04" NA
May 19 35° 67° 23° (2003) 84° (1964) 0.04" NA
May 20 35° 68° 21° (1989) 85° (1964) 0.04" NA
May 21 35° 68° 18° (1974) 87° (2005) 0.04" NA
May 22 36° 69° 20° (1974) 83° (1967) 0.04" NA
May 23 36° 69° 21° (1986) 86° (1967) 0.04" NA
May 24 36° 69° 24° (1966) 86° (1967) 0.04" NA
May 25 36° 70° 22° (1960) 84° (1969) 0.04" NA
May 26 37° 70° 26° (1989) 87° (1969) 0.04" NA
May 27 37° 71° 29° (1987) 87° (1969) 0.04" NA
May 28 37° 71° 18° (1973) 86° (2003) 0.04" NA
May 29 37° 72° 26° (2006) 89° (2003) 0.04" NA
May 30 37° 72° 24° (2006) 91° (2003) 0.04" NA
May 31 38° 72° 27° (1974) 90° (2000) 0.03" NA
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