GRAND JUNCTION WALKER FLD, COLORADO

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 35.5 45.4 55.6 65.8 76.0 87.7 93.6 90.5 81.1 67.7 51.4 38.7 65.8
Highest Mean Max. Temperature (F) 48.7 54.9 63.6 72.8 82.1 95.5 97.0 94.6 86.7 75.1 58.7 51.7 69.1
Year Highest Occurred 1981 1970 1989 1989 1969 1977 1964 1969 1979 1963 1965 1980 1977
Lowest Mean Max. Temperature (F) 22.0 33.1 49.0 58.4 69.8 82.0 89.8 84.0 74.4 58.4 43.4 25.3 62.8
Year Lowest Occurred 1973 1979 1964 1975 1975 1967 1986 1968 1986 1969 1979 1978 1979
Mean Temperature (F) 25.0 34.5 43.4 52.2 62.0 72.4 78.8 76.4 67.0 54.7 40.4 28.7 53.0
Highest Mean Temperature (F) 36.8 40.9 49.8 57.5 66.4 79.1 81.3 80.4 72.0 61.3 48.3 40.1 55.2
Year Highest Occurred 1981 1983 1989 1989 1969 1977 1964 1983 1979 1963 1965 1980 1981
Lowest Mean Temperature (F) 11.5 19.9 37.0 45.9 57.1 67.5 76.0 70.3 62.1 47.4 33.2 16.0 50.1
Year Lowest Occurred 1973 1974 1964 1970 1975 1975 1986 1968 1961 1969 1979 1978 1968
Mean Min. Temperature (F) 14.5 23.5 31.3 38.5 47.9 57.1 63.9 62.2 52.8 41.6 29.4 18.7 40.1
Highest Mean Min. Temperature (F) 25.4 31.1 36.7 42.7 51.7 62.6 66.5 68.1 57.5 47.5 37.8 28.5 43.5
Year Highest Occurred 1980 1983 1983 1990 1984 1977 1966 1983 1983 1963 1965 1980 1983
Lowest Mean Min. Temperature (F) 1.0 6.5 24.8 32.1 44.3 51.2 61.2 56.6 47.7 36.0 23.0 6.7 37.1
Year Lowest Occurred 1973 1974 1976 1970 1975 1975 1987 1968 1971 1976 1979 1978 1968
Mean Precipitation (in.) 0.56 0.48 0.90 0.75 0.87 0.50 0.65 0.81 0.82 0.98 0.71 0.61 8.64
Highest Precipitation (in.) 1.36 1.33 2.02 1.95 1.68 2.07 1.92 1.77 2.81 3.45 2.00 1.85 14.82
Year Highest Occurred 1979 1989 1979 1965 1983 1969 1983 1984 1982 1972 1983 1983 1983
Lowest Precipitation (in.) 0.00 0.00 0.02 0.08 0.00 0.00 0.03 0.09 0.01 0.00 0.00 0.01 5.27
Year Lowest Occurred 1961 1972 1972 1967 1970 1980 1972 1975 1979 1964 1989 1976 1976
Heating Degree Days (F) 1240. 854. 670. 389. 132. 13. 0. 0. 55. 332. 738. 1125. 5548.
Cooling Degree Days (F) 0. 0. 0. 0. 39. 235. 428. 353. 115. 13. 0. 0. 1183.

Western Regional Climate Center, wrcc@dri.edu