STEWART MOUNTAIN, ARIZONA

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 65.2 69.4 73.8 82.3 91.4 101.1 103.9 102.1 97.3 87.4 74.6 65.8 84.5
Highest Mean Max. Temperature (F) 73.3 74.9 87.5 91.7 97.0 104.6 106.5 106.6 102.6 92.8 80.1 73.8 87.4
Year Highest Occurred 1986 1972 1972 1989 1984 1974 1972 1969 1979 1988 1962 1980 1989
Lowest Mean Max. Temperature (F) 58.3 62.9 64.8 73.7 85.1 95.3 99.9 98.4 91.7 80.8 68.4 61.4 82.4
Year Lowest Occurred 1979 1966 1973 1975 1979 1965 1984 1964 1985 1971 1972 1967 1975
Mean Temperature (F) 50.8 54.1 58.2 65.6 74.4 83.7 89.2 87.3 81.7 70.7 58.6 51.4 68.8
Highest Mean Temperature (F) 56.0 59.2 67.1 74.0 80.0 88.6 91.6 91.5 86.9 75.2 63.3 59.2 71.5
Year Highest Occurred 1981 1963 1972 1989 1984 1981 1972 1969 1979 1977 1967 1980 1981
Lowest Mean Temperature (F) 47.2 48.7 53.1 58.6 70.7 77.9 84.6 83.6 75.0 64.7 54.6 45.9 66.9
Year Lowest Occurred 1979 1964 1973 1975 1975 1965 1986 1968 1986 1971 1985 1987 1987
Mean Min. Temperature (F) 36.5 38.8 42.5 48.9 57.4 66.2 74.5 72.3 66.1 53.9 42.6 36.9 53.1
Highest Mean Min. Temperature (F) 43.3 45.5 48.1 56.3 63.0 73.6 77.2 77.0 72.3 60.7 46.9 44.5 57.1
Year Highest Occurred 1980 1968 1978 1989 1984 1981 1981 1982 1983 1977 1969 1980 1981
Lowest Mean Min. Temperature (F) 30.6 31.5 37.4 43.4 51.9 60.4 66.4 67.8 57.4 46.9 37.3 30.2 49.1
Year Lowest Occurred 1990 1964 1969 1975 1988 1965 1987 1987 1986 1973 1987 1987 1987
Mean Precipitation (in.) 1.36 1.29 1.53 0.47 0.24 0.13 1.25 1.71 1.21 1.10 1.21 1.63 13.13
Highest Precipitation (in.) 5.45 4.97 5.27 2.27 1.34 1.49 4.24 5.59 3.82 6.69 3.70 7.20 29.75
Year Highest Occurred 1979 1980 1978 1988 1979 1972 1984 1963 1983 1972 1982 1965 1978
Lowest Precipitation (in.) 0.00 0.00 0.00 0.00 0.00 0.00 0.06 0.07 0.00 0.00 0.00 0.00 7.22
Year Lowest Occurred 1972 1984 1984 1989 1988 1989 1987 1970 1973 1990 1980 1981 1977
Heating Degree Days (F) 440. 309. 240. 96. 0. 0. 0. 0. 0. 25. 206. 422. 1738.
Cooling Degree Days (F) 0. 0. 29. 114. 296. 561. 750. 691. 501. 202. 14. 0. 3158.

Western Regional Climate Center, wrcc@dri.edu