CHEYENNE MUNI AP, WYOMING

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 37.1 40.5 46.4 54.4 64.4 75.4 81.9 79.8 70.3 58.2 44.5 38.1 57.6
Highest Mean Max. Temperature (F) 47.4 48.6 54.6 63.9 70.1 81.4 87.3 86.0 78.2 63.1 58.3 49.3 87.3
Year Highest Occurred 1986 1991 1986 1981 1994 1994 2000 1995 1998 1988 1999 1980 2000
Lowest Mean Max. Temperature (F) 27.6 26.1 40.0 45.0 54.6 68.7 76.9 75.1 63.8 49.9 34.7 23.5 23.5
Year Lowest Occurred 1979 1989 1983 1983 1995 1983 1990 1977 1985 1984 1985 1983 1983
Mean Temperature (F) 25.9 28.8 34.2 41.6 51.3 61.5 67.7 65.9 56.6 45.4 33.3 27.1 44.9
Highest Mean Temperature (F) 36.1 35.7 41.3 48.8 56.4 67.0 72.2 70.6 64.0 49.1 44.0 37.2 72.2
Year Highest Occurred 1986 1992 1986 1981 1994 1988 2000 1995 1998 1988 1999 1980 2000
Lowest Mean Temperature (F) 16.0 16.4 29.1 34.1 45.3 56.7 63.6 62.4 51.6 38.8 25.2 14.1 14.1
Year Lowest Occurred 1979 1989 1975 1983 1995 1982 1972 1977 1985 1984 1985 1983 1983
Mean Min. Temperature (F) 14.8 17.2 22.0 28.7 38.3 47.5 53.4 52.0 42.9 32.5 22.1 16.1 32.3
Highest Mean Min. Temperature (F) 24.8 23.7 27.9 33.7 42.7 52.9 57.0 56.3 49.7 35.1 29.6 25.1 57.0
Year Highest Occurred 1986 1992 1986 1981 1994 1988 2000 2000 1998 1988 1999 1980 2000
Lowest Mean Min. Temperature (F) 4.3 6.7 15.3 23.0 34.8 43.0 48.9 48.3 38.3 27.2 15.7 4.7 4.3
Year Lowest Occurred 1979 1989 1976 1975 1975 1975 1972 1978 1971 1976 1985 1983 1979
Mean Precipitation (in.) 0.45 0.44 1.05 1.55 2.48 2.12 2.26 1.82 1.43 0.75 0.64 0.46 15.45
Highest Precipitation (in.) 2.71 1.26 3.65 5.02 6.00 4.58 5.01 6.64 4.52 1.85 2.48 1.50 6.64
Year Highest Occurred 1980 1989 1990 1999 1995 1995 1973 1985 1973 1993 1979 1979 1985
Lowest Precipitation (in.) 0.02 0.00 0.17 0.34 0.11 0.07 0.64 0.27 0.01 0.06 0.05 0.01 0.00
Year Lowest Occurred 1983 1983 1982 1992 1974 1980 1993 1973 1992 1973 1971 1996 1983
Heating Degree Days (F) 1197. 1001. 939. 686. 414. 136. 29. 42. 255. 593. 936. 1160. 7388.
Cooling Degree Days (F) 0. 0. 0. 0. 1. 41. 126. 86. 19. 0. 0. 0. 273.

Western Regional Climate Center, wrcc@dri.edu