OLTON, TEXAS

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 51.0 55.1 63.6 73.0 80.7 87.7 90.1 87.8 81.1 73.2 61.2 52.6 71.4
Highest Mean Max. Temperature (F) 59.0 65.9 73.8 81.5 87.5 96.7 94.7 93.0 88.9 80.0 68.9 61.6 73.4
Year Highest Occurred 1986 1976 1972 1978 1962 1990 1969 1983 1977 1963 1965 1970 1977
Lowest Mean Max. Temperature (F) 40.1 41.4 51.9 65.4 76.6 81.7 82.1 82.7 70.9 65.4 47.5 40.8 69.4
Year Lowest Occurred 1979 1978 1969 1973 1976 1989 1976 1971 1974 1976 1972 1983 1983
Mean Temperature (F) 35.8 39.6 47.5 57.4 65.9 73.6 76.6 74.5 67.7 57.9 46.5 37.7 56.7
Highest Mean Temperature (F) 42.4 47.3 55.2 62.8 70.9 80.4 80.1 77.8 71.8 63.4 53.3 43.2 58.1
Year Highest Occurred 1965 1976 1972 1978 1962 1990 1969 1983 1977 1963 1965 1970 1981
Lowest Mean Temperature (F) 27.7 30.8 38.9 50.5 62.1 69.7 71.6 71.1 60.5 49.1 37.5 27.5 55.0
Year Lowest Occurred 1979 1978 1969 1983 1983 1989 1976 1971 1974 1976 1972 1983 1983
Mean Min. Temperature (F) 20.5 24.0 31.4 41.8 51.0 59.5 63.0 61.2 54.2 42.6 31.8 22.9 42.0
Highest Mean Min. Temperature (F) 25.8 30.1 37.3 47.0 55.9 64.1 66.2 63.7 57.5 46.8 37.6 28.9 44.4
Year Highest Occurred 1968 1987 1974 1967 1977 1990 1966 1988 1990 1963 1965 1971 1986
Lowest Mean Min. Temperature (F) 12.8 19.1 24.0 34.8 45.4 55.8 60.3 58.7 48.3 32.8 25.3 14.2 40.1
Year Lowest Occurred 1963 1964 1965 1983 1983 1983 1984 1979 1984 1976 1976 1983 1976
Mean Precipitation (in.) 0.38 0.60 0.68 0.86 2.07 3.26 2.10 2.90 2.32 1.51 0.78 0.46 17.92
Highest Precipitation (in.) 2.38 1.57 2.51 2.60 4.15 10.10 5.02 8.41 6.60 5.12 2.78 1.67 31.05
Year Highest Occurred 1983 1961 1973 1977 1977 1985 1976 1966 1971 1981 1978 1971 1985
Lowest Precipitation (in.) 0.00 0.00 0.00 0.00 0.33 0.38 0.07 0.44 0.21 0.00 0.00 0.00 8.14
Year Lowest Occurred 1989 1976 1972 1989 1976 1973 1986 1983 1983 1989 1989 1977 1970
Heating Degree Days (F) 905. 711. 543. 251. 56. 0. 0. 0. 35. 235. 555. 846. 4137.
Cooling Degree Days (F) 0. 0. 0. 23. 84. 263. 360. 295. 116. 15. 0. 0. 1156.

Western Regional Climate Center, wrcc@dri.edu