WHITERIVER 1 SW, ARIZONA

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 52.8 56.0 60.0 68.0 77.1 87.4 90.0 86.8 82.3 73.6 62.2 53.9 70.8
Highest Mean Max. Temperature (F) 63.7 61.8 70.7 77.5 82.9 93.5 94.1 93.0 86.5 78.9 66.9 61.4 73.4
Year Highest Occurred 1986 1967 1972 1989 1984 1974 1963 1986 1979 1963 1962 1980 1989
Lowest Mean Max. Temperature (F) 45.5 48.9 51.1 59.2 72.0 82.3 86.2 81.8 78.8 65.4 54.8 47.5 69.0
Year Lowest Occurred 1979 1966 1973 1975 1980 1965 1990 1968 1976 1971 1972 1971 1975
Mean Temperature (F) 38.4 41.4 45.5 52.0 60.0 69.7 74.5 72.1 67.2 57.5 47.0 39.4 55.4
Highest Mean Temperature (F) 44.8 45.5 53.1 57.4 65.1 75.4 76.7 75.8 72.2 61.8 51.4 45.0 57.2
Year Highest Occurred 1986 1963 1972 1989 1984 1990 1966 1969 1963 1963 1965 1980 1981
Lowest Mean Temperature (F) 34.6 35.1 40.6 45.6 56.5 64.6 71.0 68.4 64.1 52.0 41.2 35.0 53.8
Year Lowest Occurred 1964 1964 1973 1975 1980 1965 1987 1968 1985 1971 1972 1968 1975
Mean Min. Temperature (F) 23.9 26.7 31.0 36.0 42.8 51.9 59.0 57.3 52.0 41.4 31.7 24.9 39.9
Highest Mean Min. Temperature (F) 30.8 31.3 37.2 41.0 47.3 60.0 62.7 60.7 59.8 45.5 37.5 29.6 42.1
Year Highest Occurred 1969 1968 1986 1981 1984 1990 1990 1969 1963 1974 1965 1977 1981
Lowest Mean Min. Temperature (F) 18.9 19.7 26.1 31.8 39.2 46.8 53.9 53.7 48.3 37.2 27.6 19.8 38.3
Year Lowest Occurred 1964 1964 1969 1967 1965 1965 1987 1990 1985 1970 1972 1968 1987
Mean Precipitation (in.) 1.53 1.34 1.94 0.82 0.51 0.51 2.78 3.53 1.76 1.67 1.46 1.74 19.59
Highest Precipitation (in.) 4.55 5.64 5.80 3.63 2.59 2.68 6.06 7.76 4.49 6.53 4.98 5.95 31.56
Year Highest Occurred 1980 1980 1978 1988 1979 1972 1980 1988 1983 1972 1978 1965 1978
Lowest Precipitation (in.) 0.00 0.00 0.00 0.00 0.00 0.00 0.89 0.49 0.08 0.02 0.21 0.02 11.50
Year Lowest Occurred 1972 1984 1972 1989 1986 1990 1989 1962 1973 1982 1980 1973 1989
Heating Degree Days (F) 825. 661. 605. 390. 170. 19. 0. 0. 29. 246. 540. 794. 4279.
Cooling Degree Days (F) 0. 0. 0. 0. 15. 160. 295. 223. 95. 14. 0. 0. 802.

Western Regional Climate Center, wrcc@dri.edu