Castle Rock, Colorado
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 14° 44° -35° (1963) 73° (1997) 0.55" NA
February 17° 47° -29° (1982) 75° (1986) 0.53" NA
March 23° 52° -14° (1965) 80° (1997) 1.5" NA
April 30° 58° -7° (1975) 91° (1981) 1.87" NA
May 39° 67° 18° (1970) 94° (2003) 2.42" NA
June 48° 78° 28° (1975) 98° (1994) 1.92" NA
July 53° 84° 39° (1962) 99° (1973) 2.37" NA
August 51° 82° 35° (1992) 98° (2002) 2.16" NA
September 43° 74° 15° (1971) 94° (1995) 1.24" NA
October 32° 65° -3° (1993) 91° (1997) 1.09" NA
November 21° 51° -18° (1976) 78° (1989) 0.98" NA
December 15° 45° -26° (1972) 71° (1995) 0.71" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Feb 1 15° 45° -4° (1994) 67° (1963) 0.01" NA
Feb 2 15° 45° -17° (1989) 70° (2003) 0.01" NA
Feb 3 15° 45° -19° (1982) 64° (1963) 0.01" NA
Feb 4 15° 45° -29° (1982) 68° (1963) 0.01" NA
Feb 5 16° 45° -25° (1989) 72° (1963) 0.01" NA
Feb 6 16° 45° -15° (1982) 65° (1963) 0.01" NA
Feb 7 16° 45° -12° (2003) 70° (1987) 0.01" NA
Feb 8 16° 46° -15° (1974) 66° (1999) 0.01" NA
Feb 9 16° 46° -19° (1982) 67° (1999) 0.01" NA
Feb 10 17° 46° -10° (1966) 68° (1996) 0.02" NA
Feb 11 17° 46° -18° (1981) 64° (1990) 0.02" NA
Feb 12 17° 46° -14° (2004) 68° (1990) 0.02" NA
Feb 13 17° 46° -12° (1965) 72° (1979) 0.02" NA
Feb 14 17° 46° -15° (1966) 70° (1979) 0.02" NA
Feb 15 17° 47° -11° (1964) 67° (1979) 0.02" NA
Feb 16 18° 47° -12° (1966) 66° (1981) 0.02" NA
Feb 17 18° 47° -10° (1993) 67° (1970) 0.02" NA
Feb 18 18° 47° -14° (2006) 64° (1981) 0.02" NA
Feb 19 18° 47° -1° (2006) 66° (1981) 0.02" NA
Feb 20 18° 47° 2° (1964) 66° (1982) 0.02" NA
Feb 21 19° 48° -5° (1964) 70° (1982) 0.02" NA
Feb 22 19° 48° -7° (1971) 72° (1982) 0.02" NA
Feb 23 19° 48° -11° (1964) 71° (1982) 0.03" NA
Feb 24 19° 48° -6° (1965) 71° (1995) 0.03" NA
Feb 25 19° 48° 1° (2003) 71° (1986) 0.03" NA
Feb 26 20° 48° -10° (1964) 75° (1986) 0.03" NA
Feb 27 20° 49° -2° (1964) 69° (1986) 0.03" NA
Feb 28 20° 49° -3° (1964) 70° (1980) 0.03" NA
Feb 29 20° 49° -2° (1996) 70° (1972) 0.03" NA
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