TEMPE A S U, ARIZONA

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 68.1 72.3 76.9 84.5 92.2 101.4 103.6 102.7 98.7 88.8 76.5 68.2 86.2
Highest Mean Max. Temperature (F) 75.6 79.3 88.3 91.2 98.6 105.7 107.5 106.6 104.1 94.9 84.7 75.0 107.5
Year Highest Occurred 1986 1991 1972 1989 2000 1994 1979 1994 1979 1999 1999 1980 1979
Lowest Mean Max. Temperature (F) 59.1 65.5 66.4 76.4 86.6 97.0 99.6 99.8 93.3 82.6 69.1 62.8 59.1
Year Lowest Occurred 1979 1998 1973 1975 1977 1982 1984 1971 1985 1972 2000 1978 1979
Mean Temperature (F) 54.1 57.6 62.0 68.4 76.3 84.7 89.9 89.0 83.8 73.2 61.0 53.9 71.2
Highest Mean Temperature (F) 60.7 64.0 69.1 76.0 84.2 89.7 93.4 93.6 88.6 80.0 68.0 57.5 93.6
Year Highest Occurred 1986 1991 1997 1989 1997 1994 1996 1994 1997 1988 1999 1980 1994
Lowest Mean Temperature (F) 48.1 52.9 54.1 59.6 68.5 79.0 86.8 84.4 79.6 66.6 54.7 49.0 48.1
Year Lowest Occurred 1979 1975 1973 1975 1977 1971 1974 1978 1976 1971 1972 1974 1979
Mean Min. Temperature (F) 40.1 42.9 47.0 52.2 60.3 68.0 76.1 75.2 68.8 57.6 45.5 39.5 56.1
Highest Mean Min. Temperature (F) 45.8 49.1 53.5 60.8 70.3 75.2 81.2 80.7 76.3 65.7 51.4 45.0 81.2
Year Highest Occurred 1986 1995 1986 1989 1997 2000 1996 1986 1997 1988 1995 1991 1996
Lowest Mean Min. Temperature (F) 31.8 34.4 38.8 42.7 50.3 58.7 70.3 66.5 60.3 50.4 38.4 33.3 31.8
Year Lowest Occurred 1972 1974 1977 1975 1971 1971 1979 1978 1973 1975 1979 1974 1972
Mean Precipitation (in.) 1.01 1.04 1.15 0.25 0.21 0.07 0.89 1.20 0.86 0.85 0.80 1.03 9.36
Highest Precipitation (in.) 5.22 4.29 4.23 1.55 1.31 0.45 2.69 2.80 2.68 4.11 3.04 4.19 5.22
Year Highest Occurred 1993 1998 1992 1988 1976 1972 1999 1997 1984 1972 1993 1992 1993
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 2000 2000 1997 2000 2000 1998 1995 1975 2000 1999 1999 2000 2000
Heating Degree Days (F) 344. 224. 169. 82. 22. 0. 0. 0. 0. 23. 179. 347. 1390.
Cooling Degree Days (F) 6. 16. 74. 182. 370. 592. 772. 742. 562. 277. 59. 3. 3655.

Western Regional Climate Center, wrcc@dri.edu