YUMA VALLEY, ARIZONA

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 69.0 74.2 78.7 85.6 93.1 101.7 105.5 104.3 100.0 90.6 77.9 69.1 87.5
Highest Mean Max. Temperature (F) 76.5 81.6 87.6 94.5 99.6 105.6 108.3 109.5 104.4 96.0 83.6 75.8 89.3
Year Highest Occurred 1986 1963 1972 1962 1984 1985 1989 1969 1979 1965 1962 1980 1989
Lowest Mean Max. Temperature (F) 62.1 68.8 72.5 76.5 85.9 96.1 101.8 100.8 94.5 83.0 73.0 63.9 85.1
Year Lowest Occurred 1979 1966 1973 1975 1977 1965 1984 1979 1976 1971 1972 1967 1971
Mean Temperature (F) 54.1 57.7 61.9 68.1 75.4 83.2 89.7 88.9 83.5 73.3 61.7 54.3 71.0
Highest Mean Temperature (F) 60.8 62.9 67.8 75.0 80.3 87.0 92.3 94.0 87.8 79.0 66.2 59.6 72.7
Year Highest Occurred 1986 1968 1972 1989 1984 1974 1970 1969 1983 1988 1967 1980 1989
Lowest Mean Temperature (F) 49.1 51.6 57.7 61.4 70.5 77.1 87.5 85.6 78.5 67.2 57.1 50.3 68.7
Year Lowest Occurred 1964 1964 1973 1975 1971 1965 1987 1979 1985 1971 1964 1990 1971
Mean Min. Temperature (F) 39.2 41.0 45.1 50.5 57.6 64.8 73.9 73.5 66.9 55.9 45.5 39.4 54.4
Highest Mean Min. Temperature (F) 45.1 47.5 49.9 55.9 61.0 68.8 77.4 78.5 74.6 62.8 49.6 45.0 56.1
Year Highest Occurred 1986 1968 1978 1989 1984 1981 1990 1970 1983 1987 1967 1977 1989
Lowest Mean Min. Temperature (F) 31.1 32.3 39.3 46.3 53.9 58.1 69.8 70.0 60.5 51.3 40.2 34.3 50.9
Year Lowest Occurred 1964 1964 1964 1975 1971 1965 1965 1976 1965 1971 1964 1968 1964
Mean Precipitation (in.) 0.41 0.23 0.26 0.13 0.03 0.01 0.18 0.55 0.29 0.27 0.28 0.47 3.11
Highest Precipitation (in.) 2.34 1.50 1.30 0.88 0.36 0.15 2.51 7.03 2.02 2.94 1.58 2.42 9.37
Year Highest Occurred 1979 1976 1970 1965 1979 1977 1984 1977 1963 1972 1969 1965 1977
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 0.83
Year Lowest Occurred 1984 1989 1990 1990 1990 1990 1988 1985 1990 1989 1990 1989 1990
Heating Degree Days (F) 343. 214. 140. 58. 0. 0. 0. 0. 0. 12. 125. 335. 1227.
Cooling Degree Days (F) 0. 10. 43. 151. 322. 546. 766. 741. 555. 269. 26. 0. 3429.

Western Regional Climate Center, wrcc@dri.edu