TUCSON INTL AP, ARIZONA

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 63.9 67.8 72.8 81.2 89.9 99.6 99.4 96.8 93.3 84.3 72.7 64.3 82.2
Highest Mean Max. Temperature (F) 71.7 71.8 82.0 91.8 97.9 105.7 105.4 100.9 99.2 89.8 78.4 71.0 86.4
Year Highest Occurred 1986 1972 1989 1989 1984 1990 1980 1985 1989 1988 1981 1980 1989
Lowest Mean Max. Temperature (F) 57.8 59.8 62.9 72.8 85.0 93.6 94.4 91.9 87.4 76.3 65.7 58.4 79.5
Year Lowest Occurred 1979 1966 1973 1975 1975 1965 1976 1971 1964 1971 1972 1971 1964
Mean Temperature (F) 51.3 54.4 58.7 65.8 74.0 83.8 86.6 84.5 80.4 70.4 59.2 52.0 68.4
Highest Mean Temperature (F) 57.1 59.1 65.0 73.8 80.7 89.0 90.0 87.0 86.1 75.3 62.9 57.0 71.2
Year Highest Occurred 1986 1968 1989 1989 1984 1981 1989 1962 1983 1988 1967 1980 1989
Lowest Mean Temperature (F) 47.5 47.7 51.6 57.9 69.3 77.6 83.5 81.3 76.3 64.2 53.0 47.0 66.0
Year Lowest Occurred 1964 1964 1973 1975 1971 1965 1974 1971 1964 1971 1972 1974 1971
Mean Min. Temperature (F) 38.6 41.0 44.6 50.4 58.0 67.9 73.6 72.1 67.5 56.6 45.6 39.8 54.6
Highest Mean Min. Temperature (F) 43.8 46.8 49.8 55.8 63.5 73.5 75.6 75.2 74.2 62.0 50.3 45.2 56.7
Year Highest Occurred 1981 1968 1978 1989 1984 1981 1977 1977 1983 1977 1965 1977 1981
Lowest Mean Min. Temperature (F) 32.8 32.7 39.2 42.9 53.5 61.6 71.2 69.2 63.7 50.8 40.2 33.6 52.1
Year Lowest Occurred 1964 1964 1962 1975 1971 1965 1973 1968 1965 1970 1972 1974 1971
Mean Precipitation (in.) 0.87 0.70 0.72 0.30 0.18 0.20 2.37 2.19 1.67 1.06 0.67 1.07 12.00
Highest Precipitation (in.) 2.94 2.90 2.20 1.15 0.74 1.05 6.17 4.28 5.11 4.98 1.86 5.02 21.86
Year Highest Occurred 1979 1980 1973 1988 1987 1984 1981 1961 1964 1983 1968 1965 1983
Lowest Precipitation (in.) 0.00 0.00 0.00 0.00 0.00 0.00 0.37 0.23 0.00 0.00 0.00 0.00 6.28
Year Lowest Occurred 1972 1984 1984 1989 1985 1983 1987 1976 1973 1982 1980 1981 1976
Heating Degree Days (F) 425. 302. 229. 97. 7. 0. 0. 0. 0. 27. 188. 403. 1678.
Cooling Degree Days (F) 0. 5. 33. 121. 286. 564. 670. 605. 462. 194. 14. 0. 2954.

Western Regional Climate Center, wrcc@dri.edu