HILLSBORO 3 N, NORTH DAKOTA

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 13.8 20.1 33.4 52.5 68.4 77.1 83.4 82.0 69.9 56.7 35.7 19.3 51.0
Highest Mean Max. Temperature (F) 30.6 33.2 45.4 64.6 79.1 85.6 87.8 88.6 77.8 70.7 44.5 28.5 56.1
Year Highest Occurred 1990 1987 1963 1987 1977 1988 1988 1961 1979 1963 1963 1979 1987
Lowest Mean Max. Temperature (F) -0.2 4.0 22.5 41.1 60.2 68.6 77.3 74.8 59.0 48.2 24.3 6.2 47.0
Year Lowest Occurred 1982 1979 1969 1979 1979 1969 1962 1977 1965 1969 1985 1983 1979
Mean Temperature (F) 4.1 10.0 23.7 41.4 55.7 65.0 70.7 68.7 57.2 45.0 26.9 10.4 39.9
Highest Mean Temperature (F) 20.7 26.9 34.0 50.7 65.1 72.1 74.1 73.9 63.1 55.6 32.9 20.3 45.3
Year Highest Occurred 1990 1987 1973 1987 1977 1988 1975 1984 1978 1963 1981 1982 1987
Lowest Mean Temperature (F) -9.7 -4.9 13.0 33.3 49.3 57.4 65.4 62.6 48.8 39.5 14.9 -1.3 36.6
Year Lowest Occurred 1982 1979 1969 1979 1979 1969 1971 1977 1965 1969 1985 1983 1979
Mean Min. Temperature (F) -5.7 -0.2 14.0 30.3 43.0 52.9 58.0 55.4 44.4 33.1 18.0 1.5 28.7
Highest Mean Min. Temperature (F) 10.7 20.5 26.6 36.8 51.1 58.5 61.9 60.9 50.6 40.4 25.2 13.4 34.5
Year Highest Occurred 1990 1987 1973 1987 1977 1988 1986 1984 1978 1963 1983 1982 1987
Lowest Mean Min. Temperature (F) -19.1 -13.7 2.1 24.9 36.5 45.0 53.0 50.4 38.6 26.8 5.4 -8.7 26.2
Year Lowest Occurred 1982 1979 1965 1961 1967 1982 1971 1977 1965 1976 1985 1983 1966
Mean Precipitation (in.) 0.41 0.41 0.87 1.76 2.38 3.42 2.96 2.53 2.12 1.55 0.52 0.52 19.45
Highest Precipitation (in.) 1.33 1.59 2.25 6.39 6.12 9.35 10.08 6.15 7.56 5.95 2.38 1.29 26.71
Year Highest Occurred 1967 1979 1977 1986 1985 1968 1987 1980 1973 1971 1986 1988 1965
Lowest Precipitation (in.) 0.00 0.00 0.00 0.00 0.44 0.94 0.16 0.31 0.22 0.03 0.00 0.05 11.70
Year Lowest Occurred 1973 1969 1986 1980 1980 1972 1967 1967 1974 1987 1990 1989 1963
Heating Degree Days (F) 1888. 1540. 1280. 708. 318. 96. 16. 43. 248. 620. 1143. 1693. 9593.
Cooling Degree Days (F) 0. 0. 0. 0. 30. 96. 192. 157. 14. 0. 0. 0. 489.

Western Regional Climate Center, wrcc@dri.edu