ACADEMY 2NE, SOUTH DAKOTA

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 29.2 34.6 45.4 60.7 72.1 82.1 89.4 87.2 77.0 64.4 46.2 32.0 60.0
Highest Mean Max. Temperature (F) 42.1 46.0 57.5 69.3 78.7 89.0 96.3 93.7 84.6 73.0 53.3 45.7 63.4
Year Highest Occurred 1990 1976 1968 1981 1985 1988 1974 1983 1979 1963 1981 1979 1976
Lowest Mean Max. Temperature (F) 14.9 19.1 30.7 51.4 66.6 75.2 82.3 80.4 63.5 54.5 29.5 14.1 57.2
Year Lowest Occurred 1978 1978 1962 1983 1990 1962 1962 1985 1965 1969 1985 1983 1978
Mean Temperature (F) 17.1 22.4 32.9 46.9 58.7 68.6 75.2 72.3 62.1 49.8 34.1 20.7 46.7
Highest Mean Temperature (F) 30.5 33.3 41.4 53.8 63.8 75.3 81.5 78.2 67.8 58.9 40.4 31.4 49.6
Year Highest Occurred 1990 1987 1986 1981 1977 1988 1966 1983 1978 1963 1981 1979 1987
Lowest Mean Temperature (F) 3.3 9.1 21.5 39.8 54.0 63.6 70.7 64.9 52.0 42.8 19.6 3.8 43.9
Year Lowest Occurred 1978 1979 1965 1961 1968 1982 1962 1985 1965 1969 1985 1983 1978
Mean Min. Temperature (F) 4.9 10.2 20.3 33.0 45.2 55.1 60.9 57.4 47.2 35.1 21.8 9.2 33.4
Highest Mean Min. Temperature (F) 18.9 22.4 28.5 39.8 51.2 61.6 67.0 62.7 53.8 44.8 28.5 18.0 37.4
Year Highest Occurred 1990 1987 1973 1977 1977 1988 1966 1983 1963 1963 1987 1965 1987
Lowest Mean Min. Temperature (F) -8.4 -4.0 8.8 23.8 39.8 49.6 56.0 49.4 40.4 30.9 9.6 -6.6 30.2
Year Lowest Occurred 1978 1979 1965 1961 1968 1985 1971 1985 1965 1976 1985 1983 1985
Mean Precipitation (in.) 0.48 0.60 1.57 2.52 3.53 3.58 2.94 2.05 2.09 1.50 0.78 0.50 22.14
Highest Precipitation (in.) 1.77 2.91 5.01 6.51 9.55 7.70 6.88 5.79 5.09 5.56 2.00 1.68 35.53
Year Highest Occurred 1988 1977 1987 1968 1982 1967 1963 1966 1988 1982 1985 1968 1977
Lowest Precipitation (in.) 0.03 0.00 0.08 0.79 0.79 0.72 0.22 0.49 0.38 0.00 0.00 0.00 11.50
Year Lowest Occurred 1989 1985 1969 1969 1975 1988 1967 1983 1990 1964 1967 1979 1976
Heating Degree Days (F) 1485. 1193. 995. 543. 216. 38. 6. 19. 149. 471. 927. 1373. 7415.
Cooling Degree Days (F) 0. 0. 0. 0. 21. 146. 323. 245. 62. 0. 0. 0. 797.

Western Regional Climate Center, wrcc@dri.edu