FOUNTAIN HILLS, ARIZONA

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 65.3 70.1 75.2 83.9 92.9 102.7 105.2 104.2 99.1 88.2 74.4 65.2 85.5
Highest Mean Max. Temperature (F) 71.7 77.7 86.2 93.0 100.0 109.4 111.1 110.4 105.4 95.4 81.9 73.5 111.1
Year Highest Occurred 1986 1991 1997 1989 1996 1994 1995 1995 1995 1995 1999 1980 1995
Lowest Mean Max. Temperature (F) 56.7 60.9 64.7 75.5 85.4 96.2 100.9 100.8 93.1 81.5 68.7 58.6 56.7
Year Lowest Occurred 1979 1998 1973 1975 1980 1998 1999 1971 1981 1984 2000 1971 1979
Mean Temperature (F) 52.6 56.3 60.9 68.2 77.0 86.1 90.7 90.0 84.5 73.6 60.4 52.7 71.1
Highest Mean Temperature (F) 57.5 62.7 68.3 75.5 82.3 91.2 94.4 95.5 89.6 78.6 67.2 59.3 95.5
Year Highest Occurred 1986 1995 1972 1989 1984 1994 1996 1995 1995 1988 1999 1980 1995
Lowest Mean Temperature (F) 46.6 51.2 53.8 61.4 70.8 77.1 86.1 86.9 78.9 68.0 55.6 48.2 46.6
Year Lowest Occurred 1979 1998 1973 1975 1998 1998 1987 1990 1985 1971 2000 1978 1979
Mean Min. Temperature (F) 39.9 42.4 46.5 52.5 61.1 69.5 76.2 75.7 69.9 59.0 46.4 40.1 56.6
Highest Mean Min. Temperature (F) 44.3 48.4 51.2 58.0 65.6 74.3 80.0 80.6 74.3 64.0 52.4 45.0 80.6
Year Highest Occurred 1981 1995 1986 1989 1984 1981 1996 1995 1983 1988 1999 1980 1995
Lowest Mean Min. Temperature (F) 36.6 38.0 41.6 46.9 54.2 57.9 70.0 72.5 63.5 54.5 41.7 36.5 36.5
Year Lowest Occurred 1979 1990 1977 1983 1998 1998 1987 1990 1985 1971 1979 1974 1974
Mean Precipitation (in.) 1.49 1.37 1.76 0.39 0.24 0.06 1.02 1.28 0.97 1.10 1.02 1.27 11.97
Highest Precipitation (in.) 6.66 5.39 4.68 2.07 1.79 0.75 3.09 4.20 3.62 5.28 3.38 4.57 6.66
Year Highest Occurred 1993 1998 1983 1988 1992 2000 1989 1988 1984 1972 1993 1992 1993
Lowest Precipitation (in.) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.26 0.00 0.00 0.00 0.00 0.00
Year Lowest Occurred 2000 1989 1997 2000 2000 1999 1997 1989 2000 1999 1999 2000 2000
Heating Degree Days (F) 385. 254. 191. 72. 6. 0. 0. 0. 0. 18. 182. 386. 1494.
Cooling Degree Days (F) 0. 10. 64. 167. 377. 634. 796. 773. 585. 284. 44. 3. 3737.

Western Regional Climate Center, wrcc@dri.edu