MESA, ARIZONA

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 67.1 71.2 76.5 84.8 93.5 103.6 105.7 104.0 99.2 88.5 75.0 66.9 86.3
Highest Mean Max. Temperature (F) 74.3 76.9 87.0 93.3 100.3 108.0 108.3 107.1 103.5 94.4 83.5 74.6 108.3
Year Highest Occurred 1986 1991 1972 1989 1984 1994 1980 1998 1979 1999 1999 1980 1980
Lowest Mean Max. Temperature (F) 58.7 65.2 66.7 75.7 87.6 98.9 102.3 99.8 94.2 82.0 68.5 61.4 58.7
Year Lowest Occurred 1979 1998 1973 1975 1977 1991 1974 1971 1976 1972 1972 1992 1979
Mean Temperature (F) 54.3 58.0 62.6 69.3 77.4 86.7 91.3 90.1 84.5 73.7 60.8 53.7 71.9
Highest Mean Temperature (F) 59.6 63.3 69.8 75.9 83.6 91.6 94.2 93.2 88.4 79.0 65.9 59.4 94.2
Year Highest Occurred 1986 1995 1972 1989 1997 1994 1996 1995 1983 1988 1999 1980 1996
Lowest Mean Temperature (F) 49.2 54.3 55.5 61.5 71.6 83.1 88.2 86.9 80.0 68.8 56.1 50.2 49.2
Year Lowest Occurred 1979 1990 1973 1975 1971 1991 1993 1979 1985 1971 1972 1974 1979
Mean Min. Temperature (F) 41.5 44.8 48.7 53.8 61.2 69.7 76.8 76.2 69.8 58.9 46.6 40.5 57.4
Highest Mean Min. Temperature (F) 46.5 50.6 53.7 58.5 67.7 75.1 81.1 79.6 75.3 63.9 50.1 44.6 81.1
Year Highest Occurred 1980 1995 1986 1989 1997 1994 1996 1995 1983 1988 1995 1991 1996
Lowest Mean Min. Temperature (F) 36.5 40.4 43.6 47.3 54.6 65.4 72.3 72.0 65.1 54.4 42.7 37.3 36.5
Year Lowest Occurred 1972 1990 1977 1975 1971 1982 1987 1979 1985 1982 2000 1999 1972
Mean Precipitation (in.) 1.01 0.99 1.19 0.33 0.17 0.06 0.89 1.14 0.89 0.81 0.77 0.98 9.23
Highest Precipitation (in.) 5.81 4.42 4.32 1.65 1.42 0.55 3.00 3.48 3.16 4.12 3.17 3.55 5.81
Year Highest Occurred 1993 1998 1992 1988 1976 1972 1992 1971 1984 2000 1993 1984 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 1996 1989 1997 1996 2000 1999 1993 1976 2000 1999 1999 2000 1996
Heating Degree Days (F) 332. 206. 147. 52. 7. 0. 0. 0. 0. 14. 162. 351. 1271.
Cooling Degree Days (F) 1. 10. 72. 181. 390. 649. 812. 777. 584. 284. 37. 1. 3798.

Western Regional Climate Center, wrcc@dri.edu