KOFA MINE, ARIZONA

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 65.8 69.8 74.5 82.3 90.2 100.4 103.5 102.0 96.8 86.2 73.7 65.8 84.3
Highest Mean Max. Temperature (F) 74.1 76.1 84.9 90.2 98.0 108.1 109.1 105.7 104.8 92.6 81.8 72.4 109.1
Year Highest Occurred 1986 1991 1972 1989 1984 1981 1980 1995 1979 1999 1995 1980 1980
Lowest Mean Max. Temperature (F) 57.6 61.5 66.0 73.0 82.6 95.4 99.5 98.1 90.5 78.7 67.5 59.5 57.6
Year Lowest Occurred 1979 1998 1973 1975 1977 1991 1984 1983 1976 1972 1994 1992 1979
Mean Temperature (F) 55.9 59.4 63.3 69.9 77.3 86.9 91.1 90.0 85.1 75.0 63.2 55.9 72.8
Highest Mean Temperature (F) 62.1 65.2 72.9 77.3 84.9 92.9 95.5 94.2 91.4 80.9 70.5 61.7 95.5
Year Highest Occurred 1986 1991 1972 1989 1997 1981 1980 1995 1979 1999 1995 1980 1980
Lowest Mean Temperature (F) 49.6 53.0 55.6 61.4 70.4 82.6 87.8 86.4 78.7 68.9 57.9 50.7 49.6
Year Lowest Occurred 1979 1998 1973 1975 1977 1991 1984 1983 1985 1971 1994 1987 1979
Mean Min. Temperature (F) 46.0 48.9 52.0 57.5 64.4 73.4 78.7 77.9 73.3 63.8 52.6 45.9 61.2
Highest Mean Min. Temperature (F) 51.0 54.4 60.9 64.4 72.7 77.8 82.6 82.6 78.0 69.1 59.3 50.9 82.6
Year Highest Occurred 2000 1991 1972 1989 1997 1981 1996 1995 1979 1999 1999 1980 1996
Lowest Mean Min. Temperature (F) 41.5 44.2 45.3 49.8 58.1 69.5 74.3 73.3 66.4 58.5 48.2 40.7 40.7
Year Lowest Occurred 1979 1990 1973 1975 1977 1982 1993 1979 1985 1971 1972 1987 1987
Mean Precipitation (in.) 0.90 0.78 0.64 0.22 0.14 0.03 0.63 1.00 1.06 0.58 0.42 0.59 6.99
Highest Precipitation (in.) 4.51 3.38 2.56 2.21 1.57 0.26 4.10 7.17 7.55 6.33 2.59 3.22 7.55
Year Highest Occurred 1993 1998 1992 1988 1994 1987 1976 1983 1976 1976 1985 1984 1976
Lowest Precipitation (in.) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Year Lowest Occurred 1996 1989 1997 2000 2000 1998 2000 1980 2000 1999 1999 2000 1996
Heating Degree Days (F) 294. 183. 158. 54. 10. 0. 0. 0. 0. 16. 132. 297. 1144.
Cooling Degree Days (F) 12. 25. 105. 202. 391. 656. 809. 772. 603. 327. 77. 13. 3992.

Western Regional Climate Center, wrcc@dri.edu