PLAINS, TEXAS

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 53.0 58.3 66.1 75.4 83.0 89.8 91.3 89.9 83.4 75.6 63.9 55.4 73.8
Highest Mean Max. Temperature (F) 61.6 68.3 74.6 81.6 89.4 99.1 98.1 96.2 91.3 82.9 72.3 63.0 75.5
Year Highest Occurred 1989 1976 1967 1978 1962 1990 1964 1983 1977 1979 1965 1970 1977
Lowest Mean Max. Temperature (F) 43.5 49.5 53.8 68.5 79.4 81.0 84.3 82.5 74.0 68.4 54.7 46.8 71.1
Year Lowest Occurred 1982 1978 1987 1973 1966 1986 1976 1971 1974 1969 1972 1983 1982
Mean Temperature (F) 37.6 42.2 49.5 59.0 66.9 74.6 77.2 75.9 69.5 59.6 48.3 39.9 58.4
Highest Mean Temperature (F) 44.3 50.2 57.6 63.8 72.1 82.0 81.5 79.6 75.1 63.8 55.3 45.7 60.1
Year Highest Occurred 1989 1976 1986 1967 1962 1990 1964 1983 1983 1963 1965 1970 1965
Lowest Mean Temperature (F) 31.6 35.4 40.6 51.7 63.9 69.6 72.7 71.0 62.0 53.8 41.6 33.2 57.0
Year Lowest Occurred 1982 1964 1987 1973 1983 1986 1976 1974 1974 1976 1976 1983 1975
Mean Min. Temperature (F) 22.2 26.0 33.0 42.5 50.8 59.5 63.1 61.9 55.6 43.6 32.6 24.3 42.9
Highest Mean Min. Temperature (F) 27.0 35.1 43.2 48.7 55.9 64.9 67.1 65.6 61.6 49.7 39.0 31.1 45.3
Year Highest Occurred 1989 1987 1983 1963 1965 1990 1966 1982 1983 1983 1983 1984 1986
Lowest Mean Min. Temperature (F) 14.7 19.0 25.9 34.8 43.7 53.7 60.5 56.9 48.6 35.8 26.8 17.7 40.8
Year Lowest Occurred 1963 1964 1969 1973 1967 1983 1985 1974 1968 1976 1976 1966 1973
Mean Precipitation (in.) 0.37 0.71 0.55 0.96 2.12 2.44 2.57 2.70 2.58 1.33 0.66 0.67 17.66
Highest Precipitation (in.) 1.57 2.88 2.24 4.93 5.60 6.19 6.89 11.52 7.15 5.80 2.55 3.23 27.44
Year Highest Occurred 1973 1973 1968 1973 1987 1986 1982 1966 1974 1969 1986 1987 1974
Lowest Precipitation (in.) 0.00 0.00 0.00 0.00 0.00 0.16 0.00 0.00 0.00 0.00 0.00 0.00 6.00
Year Lowest Occurred 1989 1984 1988 1989 1967 1990 1980 1982 1983 1989 1989 1985 1964
Heating Degree Days (F) 849. 638. 490. 206. 48. 6. 0. 0. 32. 184. 501. 778. 3732.
Cooling Degree Days (F) 0. 0. 9. 26. 107. 294. 378. 338. 167. 17. 0. 0. 1336.

Western Regional Climate Center, wrcc@dri.edu