PLYMOUTH EXP STN, NORTH CAROLINA

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 53.1 56.4 64.8 73.8 80.8 86.8 89.5 88.4 83.5 74.4 66.3 57.1 72.9
Highest Mean Max. Temperature (F) 64.4 67.8 71.2 79.0 85.7 91.6 92.6 92.5 88.6 79.1 72.6 65.3 76.6
Year Highest Occurred 1974 1976 1976 1981 1965 1981 1986 1980 1980 1990 1985 1984 1990
Lowest Mean Max. Temperature (F) 43.1 44.2 59.0 68.3 76.9 83.1 86.2 85.1 77.6 70.1 59.7 46.8 70.7
Year Lowest Occurred 1977 1978 1962 1987 1972 1965 1965 1981 1963 1964 1976 1989 1963
Mean Temperature (F) 41.6 44.2 51.8 59.8 68.0 74.9 78.4 77.4 72.1 62.0 53.7 45.4 60.8
Highest Mean Temperature (F) 53.8 54.0 57.0 63.9 72.3 79.3 82.0 81.0 76.5 68.0 62.0 53.2 64.6
Year Highest Occurred 1974 1990 1974 1985 1965 1981 1986 1988 1980 1971 1985 1971 1990
Lowest Mean Temperature (F) 32.3 33.2 46.5 56.3 64.1 71.2 75.8 74.2 66.8 57.5 45.8 37.0 58.8
Year Lowest Occurred 1977 1978 1969 1983 1967 1979 1962 1981 1967 1988 1976 1989 1963
Mean Min. Temperature (F) 30.2 32.0 38.8 45.9 55.1 62.9 67.2 66.5 60.7 49.6 41.1 33.7 48.6
Highest Mean Min. Temperature (F) 43.2 41.5 44.0 49.9 58.8 67.7 71.3 71.4 65.7 58.9 51.4 41.7 52.6
Year Highest Occurred 1974 1990 1990 1964 1965 1989 1986 1988 1989 1971 1985 1990 1990
Lowest Mean Min. Temperature (F) 21.4 22.2 32.5 41.4 50.7 58.7 64.5 63.2 54.8 43.2 31.9 26.8 46.4
Year Lowest Occurred 1977 1978 1981 1971 1967 1972 1973 1981 1967 1974 1976 1963 1981
Mean Precipitation (in.) 4.22 3.80 4.32 3.37 4.72 4.74 6.08 5.44 4.58 3.36 3.12 3.31 51.06
Highest Precipitation (in.) 8.55 7.63 9.31 7.28 11.12 13.07 14.95 12.29 8.44 11.52 6.64 7.81 68.98
Year Highest Occurred 1987 1983 1983 1989 1966 1962 1965 1981 1985 1971 1977 1973 1989
Lowest Precipitation (in.) 1.55 1.09 0.88 0.67 0.88 1.50 0.77 0.33 0.63 0.33 0.62 0.54 36.41
Year Lowest Occurred 1965 1968 1967 1985 1964 1984 1966 1975 1978 1984 1981 1985 1970
Heating Degree Days (F) 725. 582. 414. 169. 28. 0. 0. 0. 7. 152. 348. 608. 3033.
Cooling Degree Days (F) 0. 0. 0. 13. 121. 297. 415. 384. 220. 59. 9. 0. 1518.

Southeast Regional Climate Center, sercc@climate.ncsu.edu