IROQUOIS, SOUTH DAKOTA

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F)
Highest Mean Max. Temperature (F)
Year Highest Occurred
Lowest Mean Max. Temperature (F)
Year Lowest Occurred
Mean Temperature (F)
Highest Mean Temperature (F)
Year Highest Occurred
Lowest Mean Temperature (F)
Year Lowest Occurred
Mean Min. Temperature (F)
Highest Mean Min. Temperature (F)
Year Highest Occurred
Lowest Mean Min. Temperature (F)
Year Lowest Occurred
Mean Precipitation (in.) 0.38 0.55 1.41 2.18 3.03 3.47 2.86 2.11 1.92 1.63 0.79 0.46 20.79
Highest Precipitation (in.) 2.05 2.03 4.52 6.47 11.29 8.75 8.47 4.46 5.18 4.79 2.44 1.28 33.22
Year Highest Occurred 1975 1977 1987 1986 1972 1984 1972 1986 1986 1982 1971 1987 1972
Lowest Precipitation (in.) 0.00 0.00 0.06 0.54 0.56 1.35 0.15 0.24 0.12 0.05 0.02 0.00 9.88
Year Lowest Occurred 1974 1968 1967 1961 1976 1972 1975 1976 1974 1964 1990 1986 1976
Heating Degree Days (F)
Cooling Degree Days (F)

Western Regional Climate Center, wrcc@dri.edu