GRAND LAKE 6 SSW, COLORADO

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 26.2 30.5 37.3 47.0 58.1 68.4 74.1 72.3 64.9 54.5 39.5 28.9 50.1
Highest Mean Max. Temperature (F) 35.4 35.8 43.6 53.3 63.1 75.1 77.8 75.3 70.4 61.6 45.4 38.8 52.7
Year Highest Occurred 1981 1976 1986 1981 1969 1977 1966 1969 1990 1963 1963 1980 1990
Lowest Mean Max. Temperature (F) 16.7 23.5 28.5 38.9 51.9 61.8 69.8 69.3 57.3 44.4 31.2 21.7 48.0
Year Lowest Occurred 1979 1964 1965 1983 1983 1969 1973 1968 1961 1969 1979 1978 1984
Mean Temperature (F) 13.4 16.4 23.6 33.5 43.7 52.3 58.1 56.6 49.4 39.8 27.9 17.4 36.0
Highest Mean Temperature (F) 21.0 22.8 29.9 38.2 47.0 57.2 60.8 59.7 53.4 45.3 32.1 27.2 38.5
Year Highest Occurred 1981 1986 1986 1981 1969 1977 1966 1983 1963 1963 1965 1980 1981
Lowest Mean Temperature (F) 5.3 8.9 15.1 26.2 38.8 48.8 55.7 54.1 44.4 33.9 20.8 11.5 34.2
Year Lowest Occurred 1962 1964 1965 1983 1983 1969 1973 1965 1961 1970 1979 1978 1968
Mean Min. Temperature (F) 0.4 2.2 9.8 20.0 29.2 36.1 42.0 40.8 33.7 25.1 16.3 5.9 21.8
Highest Mean Min. Temperature (F) 10.0 12.7 16.5 24.3 32.5 41.1 45.7 45.5 36.7 29.2 21.7 15.5 24.7
Year Highest Occurred 1971 1986 1972 1989 1987 1988 1984 1983 1963 1972 1965 1980 1981
Lowest Mean Min. Temperature (F) -9.9 -7.2 0.8 13.2 25.7 33.9 39.2 37.3 29.8 21.5 10.3 -1.1 19.3
Year Lowest Occurred 1962 1974 1964 1970 1983 1982 1982 1974 1968 1976 1979 1990 1964
Mean Precipitation (in.) 0.96 0.78 0.94 1.19 1.38 1.26 1.53 1.57 1.25 0.98 0.95 0.92 13.71
Highest Precipitation (in.) 2.43 2.21 2.51 2.58 2.74 4.34 3.17 3.03 5.30 3.66 2.75 3.13 21.00
Year Highest Occurred 1980 1986 1983 1986 1973 1969 1965 1983 1961 1969 1985 1983 1983
Lowest Precipitation (in.) 0.08 0.23 0.33 0.40 0.25 0.00 0.36 0.26 0.18 0.04 0.40 0.17 10.08
Year Lowest Occurred 1961 1982 1968 1979 1970 1986 1963 1985 1979 1965 1972 1986 1968
Heating Degree Days (F) 1600. 1361. 1283. 945. 660. 381. 214. 260. 468. 781. 1113. 1476. 10542.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0.

Western Regional Climate Center, wrcc@dri.edu