DELTA, UTAH

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 37.3 45.6 54.3 63.5 73.7 84.9 93.1 90.5 80.1 67.4 51.3 38.6 65.0
Highest Mean Max. Temperature (F) 46.1 53.6 64.5 72.6 80.9 92.3 95.6 95.0 86.8 75.6 57.7 49.2 67.3
Year Highest Occurred 1990 1972 1972 1987 1969 1974 1989 1967 1979 1988 1962 1980 1977
Lowest Mean Max. Temperature (F) 25.3 34.1 46.2 56.7 68.0 78.7 89.0 84.0 73.0 59.2 44.2 29.0 61.3
Year Lowest Occurred 1984 1984 1964 1983 1977 1967 1987 1968 1961 1969 1964 1972 1984
Mean Temperature (F) 24.9 32.5 40.1 47.9 57.5 67.2 75.2 72.8 62.6 50.8 37.6 26.6 49.6
Highest Mean Temperature (F) 34.2 40.1 47.0 53.5 63.2 74.4 78.3 76.6 68.9 57.4 43.2 34.8 51.6
Year Highest Occurred 1969 1986 1986 1987 1969 1961 1964 1969 1990 1988 1965 1977 1981
Lowest Mean Temperature (F) 13.9 19.5 33.7 42.1 52.2 63.2 71.6 68.2 57.0 45.0 32.0 16.0 46.7
Year Lowest Occurred 1973 1984 1964 1975 1975 1975 1982 1968 1965 1970 1964 1972 1984
Mean Min. Temperature (F) 12.5 19.3 25.8 32.2 41.2 49.5 57.2 55.0 45.0 34.1 23.9 14.4 34.2
Highest Mean Min. Temperature (F) 24.0 27.8 32.3 37.2 46.5 57.9 62.0 61.4 51.2 41.7 29.4 23.6 36.5
Year Highest Occurred 1978 1986 1978 1962 1963 1961 1961 1963 1990 1963 1965 1964 1983
Lowest Mean Min. Temperature (F) -1.4 4.8 18.5 27.5 35.7 45.9 53.5 49.3 39.3 27.9 17.4 2.6 32.0
Year Lowest Occurred 1989 1984 1976 1975 1975 1976 1978 1976 1970 1970 1979 1990 1975
Mean Precipitation (in.) 0.52 0.58 0.87 0.82 0.88 0.54 0.51 0.63 0.78 0.84 0.70 0.64 8.31
Highest Precipitation (in.) 1.56 2.21 2.79 1.74 2.95 2.39 2.04 2.30 4.18 2.49 2.00 2.44 13.04
Year Highest Occurred 1978 1962 1980 1971 1980 1969 1984 1965 1982 1981 1978 1966 1982
Lowest Precipitation (in.) 0.00 0.00 0.00 0.01 0.00 0.00 0.01 0.05 0.00 0.02 0.00 0.01 3.73
Year Lowest Occurred 1972 1974 1972 1982 1974 1974 1964 1980 1974 1965 1962 1976 1989
Heating Degree Days (F) 1243. 910. 772. 513. 250. 58. 0. 7. 137. 445. 822. 1190. 6347.
Cooling Degree Days (F) 0. 0. 0. 0. 18. 124. 316. 248. 65. 0. 0. 0. 771.

Western Regional Climate Center, wrcc@dri.edu