PLYMOUTH EXP STN, NORTH CAROLINA

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 54.0 57.6 65.4 74.2 80.8 87.0 90.1 88.3 83.6 74.5 66.0 57.5 73.3
Highest Mean Max. Temperature (F) 64.8 68.3 71.8 79.4 85.3 91.7 92.6 92.3 88.3 79.1 72.6 65.3 92.6
Year Highest Occurred 1974 1976 1976 1981 1991 1981 1986 1980 1980 1990 1985 1984 1986
Lowest Mean Max. Temperature (F) 43.0 44.7 58.8 68.3 75.4 82.1 87.1 84.4 80.3 70.4 59.6 46.8 43.0
Year Lowest Occurred 1977 1978 1996 1987 1992 1992 2000 1992 1999 1988 1976 1989 1977
Mean Temperature (F) 43.6 46.0 53.0 60.9 68.8 76.0 79.9 78.2 73.1 62.8 54.3 46.8 62.0
Highest Mean Temperature (F) 55.1 54.1 58.3 64.9 73.4 80.6 82.0 80.7 77.3 68.7 63.0 54.3 82.0
Year Highest Occurred 1974 1990 1974 1985 1991 1981 1991 1980 1980 1971 1985 1971 1991
Lowest Mean Temperature (F) 33.2 34.5 47.9 57.2 64.4 72.1 77.5 75.2 70.2 57.1 46.7 37.0 33.2
Year Lowest Occurred 1977 1978 1996 1983 1992 1992 2000 1981 1994 1988 1976 1989 1977
Mean Min. Temperature (F) 33.1 34.4 40.6 47.6 56.8 65.0 69.6 68.0 62.6 51.0 42.6 36.0 50.6
Highest Mean Min. Temperature (F) 45.4 41.8 45.0 51.3 61.6 69.4 72.5 70.6 66.9 60.7 53.3 43.6 72.5
Year Highest Occurred 1974 1990 1974 1985 1991 1981 1991 1988 1979 1971 1985 1971 1991
Lowest Mean Min. Temperature (F) 23.5 24.3 34.5 43.4 53.0 61.2 67.1 64.5 58.4 43.8 33.8 27.2 23.5
Year Lowest Occurred 1977 1978 1981 1971 1994 1972 1973 1997 1976 1988 1976 1989 1977
Mean Precipitation (in.) 4.54 3.45 4.72 3.49 4.50 5.03 5.31 5.60 5.13 3.86 3.18 3.20 52.01
Highest Precipitation (in.) 8.55 7.63 9.31 7.28 9.74 10.00 14.08 12.29 15.15 11.52 6.64 7.81 15.15
Year Highest Occurred 1987 1983 1983 1989 1990 1995 1984 1981 1999 1971 1977 1973 1999
Lowest Precipitation (in.) 1.56 1.17 1.80 0.67 0.97 1.50 0.91 0.33 0.63 0.04 0.62 0.54 0.04
Year Lowest Occurred 1981 1992 1985 1985 1991 1984 1993 1975 1978 2000 1981 1985 2000
Heating Degree Days (F) 664. 532. 378. 150. 27. 1. 0. 0. 4. 141. 333. 569. 2799.
Cooling Degree Days (F) 0. 0. 5. 27. 145. 331. 460. 407. 246. 72. 12. 2. 1707.

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