YUMA VALLEY, ARIZONA

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 69.6 74.2 79.2 85.7 92.9 101.8 105.1 104.3 100.1 90.4 77.7 69.4 87.5
Highest Mean Max. Temperature (F) 76.5 79.6 87.6 94.1 99.6 105.6 108.3 107.5 104.4 96.5 84.8 75.9 108.3
Year Highest Occurred 1986 1991 1972 1989 1984 1985 1989 1995 1979 1999 1999 1980 1989
Lowest Mean Max. Temperature (F) 62.1 68.9 72.2 76.5 85.9 96.5 101.8 100.8 94.5 83.0 71.4 63.3 62.1
Year Lowest Occurred 1979 1998 1991 1975 1977 1998 1984 1979 1976 1971 1994 1992 1979
Mean Temperature (F) 55.3 58.6 63.0 68.4 75.7 83.7 89.6 89.2 84.3 73.9 62.0 54.9 71.6
Highest Mean Temperature (F) 61.0 63.9 68.1 75.0 81.9 87.5 92.7 92.4 88.3 79.1 67.5 59.8 92.7
Year Highest Occurred 1986 1995 1972 1989 1997 1994 1996 1995 1995 1988 1995 1980 1996
Lowest Mean Temperature (F) 50.6 54.1 58.0 61.3 70.4 79.7 86.8 85.5 78.5 67.4 57.3 50.3 50.3
Year Lowest Occurred 1979 1990 1973 1975 1971 1998 1991 1979 1985 1971 1994 1990 1990
Mean Min. Temperature (F) 40.9 42.9 46.8 51.1 58.4 65.6 74.0 74.1 68.4 57.4 46.2 40.4 55.5
Highest Mean Min. Temperature (F) 46.4 48.6 50.5 55.9 64.5 70.2 78.1 77.6 74.6 63.3 51.1 45.4 78.1
Year Highest Occurred 1993 1995 1978 1989 1997 1994 1996 1998 1983 1987 1995 1977 1996
Lowest Mean Min. Temperature (F) 34.5 37.8 41.7 46.1 53.8 61.7 70.1 69.9 61.6 51.8 42.2 36.4 34.5
Year Lowest Occurred 1972 1990 1977 1975 1971 1982 1991 1976 1973 1971 1971 1990 1972
Mean Precipitation (in.) 0.44 0.24 0.31 0.10 0.02 0.01 0.15 0.53 0.14 0.21 0.12 0.36 2.63
Highest Precipitation (in.) 2.34 1.50 1.61 0.79 0.36 0.15 2.51 7.03 1.05 2.94 0.80 1.97 7.03
Year Highest Occurred 1979 1976 1992 1988 1979 1977 1984 1977 1971 1972 1985 1982 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 0.00
Year Lowest Occurred 1984 1989 1990 2000 2000 2000 2000 1991 2000 1999 2000 1989 1984
Heating Degree Days (F) 306. 191. 123. 52. 8. 0. 0. 0. 0. 15. 135. 318. 1148.
Cooling Degree Days (F) 4. 10. 59. 153. 338. 560. 760. 750. 578. 291. 44. 4. 3551.

Western Regional Climate Center, wrcc@dri.edu