LEES FERRY, ARIZONA

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 47.9 56.4 65.3 76.2 86.9 98.2 102.9 99.5 91.2 77.1 60.6 48.0 75.9
Highest Mean Max. Temperature (F) 55.7 63.1 75.6 85.9 92.6 104.0 106.3 102.9 95.8 85.0 65.7 57.3 79.4
Year Highest Occurred 1981 1986 1989 1989 1974 1974 1963 1985 1979 1988 1977 1980 1989
Lowest Mean Max. Temperature (F) 37.0 46.7 58.3 69.1 80.8 90.3 99.5 92.8 85.3 67.5 54.8 39.1 73.4
Year Lowest Occurred 1968 1979 1973 1975 1980 1965 1983 1968 1985 1972 1972 1978 1982
Mean Temperature (F) 36.9 44.2 51.8 61.4 71.4 81.8 87.7 84.6 76.1 62.7 48.6 37.6 62.1
Highest Mean Temperature (F) 43.7 50.7 59.6 69.1 75.7 86.5 90.8 88.1 79.1 68.5 52.1 45.1 63.8
Year Highest Occurred 1981 1986 1972 1989 1974 1974 1961 1969 1984 1988 1967 1980 1986
Lowest Mean Temperature (F) 27.2 36.9 45.8 55.6 64.7 74.9 84.8 79.6 71.1 57.1 43.9 30.3 60.1
Year Lowest Occurred 1968 1979 1984 1984 1980 1965 1987 1968 1985 1982 1979 1967 1975
Mean Min. Temperature (F) 25.9 32.0 38.3 46.5 55.9 65.3 72.4 69.7 61.1 48.3 36.5 27.0 48.2
Highest Mean Min. Temperature (F) 33.8 38.2 44.2 52.2 59.2 70.2 76.4 73.6 65.0 53.4 40.8 34.2 50.2
Year Highest Occurred 1978 1986 1986 1989 1987 1961 1961 1970 1984 1963 1983 1977 1986
Lowest Mean Min. Temperature (F) 17.4 27.1 31.8 39.6 48.5 59.4 69.4 66.1 56.8 41.6 31.6 21.0 45.9
Year Lowest Occurred 1968 1979 1984 1984 1980 1980 1987 1975 1985 1980 1979 1976 1980
Mean Precipitation (in.) 0.39 0.41 0.53 0.43 0.33 0.16 0.83 0.95 0.50 0.63 0.52 0.41 6.09
Highest Precipitation (in.) 1.45 1.57 1.61 2.33 2.30 2.00 2.89 2.26 2.06 3.15 2.79 1.12 9.65
Year Highest Occurred 1978 1980 1973 1988 1965 1972 1973 1982 1967 1972 1978 1984 1980
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 3.30
Year Lowest Occurred 1976 1990 1984 1989 1985 1987 1979 1976 1979 1989 1989 1989 1974
Heating Degree Days (F) 871. 582. 417. 168. 18. 0. 0. 0. 0. 140. 492. 849. 3537.
Cooling Degree Days (F) 0. 0. 8. 60. 217. 504. 704. 608. 333. 68. 0. 0. 2502.

Western Regional Climate Center, wrcc@dri.edu