IRON MTN KINGSFORD WWTP, MICHIGAN

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 23.6 28.8 38.9 53.3 67.8 76.3 80.4 78.0 68.7 56.3 40.0 27.7 53.3
Highest Mean Max. Temperature (F) 34.7 37.8 47.1 61.4 77.7 82.9 85.8 82.9 76.4 62.9 49.6 34.9 85.8
Year Highest Occurred 1990 1998 2000 1977 1977 1988 1983 1983 1998 1973 1999 1994 1983
Lowest Mean Max. Temperature (F) 14.3 20.5 32.0 46.0 57.4 70.6 73.5 73.8 63.9 50.2 31.8 18.5 14.3
Year Lowest Occurred 1994 1979 1996 1995 1997 1982 1992 1997 1974 1987 1995 1989 1994
Mean Temperature (F) 12.1 16.7 27.5 41.1 54.4 63.4 67.9 65.9 56.8 45.2 31.2 18.4 41.7
Highest Mean Temperature (F) 21.5 29.4 35.8 47.1 62.7 69.0 72.8 70.2 62.0 52.3 38.6 27.3 72.8
Year Highest Occurred 1990 1998 2000 1987 1977 1995 1983 1983 1998 1971 1999 1997 1983
Lowest Mean Temperature (F) 3.0 6.8 20.8 35.4 46.8 56.9 62.2 62.0 51.4 40.5 23.8 7.7 3.0
Year Lowest Occurred 1994 1979 1989 1972 1997 1982 1992 1986 1974 1988 1995 1989 1994
Mean Min. Temperature (F) 0.6 4.5 16.1 28.9 40.9 50.4 55.4 53.8 44.9 34.0 22.4 9.0 30.1
Highest Mean Min. Temperature (F) 10.5 21.0 24.6 34.0 48.6 55.6 60.0 60.5 49.3 42.9 29.1 20.3 60.5
Year Highest Occurred 1998 1998 1973 1986 1991 1991 1999 1995 1978 1971 1998 1997 1995
Lowest Mean Min. Temperature (F) -8.8 -7.0 7.6 22.4 35.5 43.2 50.9 48.6 39.0 28.3 13.9 -3.3 -8.8
Year Lowest Occurred 1982 1979 1989 1975 1971 1982 1992 1971 1974 1976 1976 1976 1982
Mean Precipitation (in.) 1.39 0.89 1.73 2.19 3.10 3.48 3.62 3.78 3.65 2.65 2.03 1.49 30.00
Highest Precipitation (in.) 4.01 2.35 3.88 5.11 6.68 6.49 11.35 6.85 6.27 5.22 5.42 3.51 11.35
Year Highest Occurred 1996 1971 1998 1977 1999 1981 1999 1995 1980 1983 1985 1996 1999
Lowest Precipitation (in.) 0.26 0.05 0.27 0.23 0.39 1.15 1.14 0.74 0.81 0.52 0.38 0.18 0.05
Year Lowest Occurred 1981 1993 1999 1989 1986 1972 1976 1991 1976 1976 1997 1994 1993
Heating Degree Days (F) 1639. 1354. 1163. 718. 357. 116. 37. 69. 255. 616. 1014. 1446. 8784.
Cooling Degree Days (F) 0. 0. 0. 0. 27. 67. 127. 96. 8. 0. 0. 0. 325.

Western Regional Climate Center, wrcc@dri.edu