PORTLAND 2, TENNESSEE

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 42.9 48.3 58.4 68.2 76.2 84.0 88.3 87.3 81.1 70.0 57.8 47.2 67.5
Highest Mean Max. Temperature (F) 50.6 57.5 64.7 74.2 83.1 87.7 93.4 93.0 88.1 77.0 65.1 57.2 93.4
Year Highest Occurred 1990 1976 1973 1981 1987 1971 1986 1983 1998 1971 1999 1971 1986
Lowest Mean Max. Temperature (F) 28.6 33.1 51.7 62.7 71.7 78.6 83.1 81.7 75.1 62.3 50.2 34.2 28.6
Year Lowest Occurred 1977 1978 1978 1983 1990 1997 1979 1992 1974 1988 1976 1989 1977
Mean Temperature (F) 34.5 38.9 48.3 57.6 66.4 74.6 78.8 77.3 70.7 59.0 48.6 38.6 57.8
Highest Mean Temperature (F) 42.8 45.8 54.7 63.6 73.5 77.3 82.6 81.6 76.3 65.2 55.1 48.4 82.6
Year Highest Occurred 1990 1990 1973 1981 1987 1971 1986 1995 1998 1971 1985 1971 1986
Lowest Mean Temperature (F) 19.8 24.3 42.5 53.0 61.9 70.5 75.3 73.1 66.4 51.8 40.1 26.1 19.8
Year Lowest Occurred 1977 1978 1996 1997 1976 1974 1984 1992 1974 1988 1976 1989 1977
Mean Min. Temperature (F) 26.0 29.5 38.1 47.0 56.6 65.2 69.2 67.3 60.2 48.0 39.3 30.0 48.0
Highest Mean Min. Temperature (F) 35.6 36.9 44.6 53.1 63.9 68.2 72.5 71.5 64.9 53.8 46.6 39.5 72.5
Year Highest Occurred 1998 1998 1973 1991 1987 1981 1980 1995 1986 1984 1985 1971 1980
Lowest Mean Min. Temperature (F) 10.9 15.6 30.6 42.2 51.1 61.4 64.9 63.6 55.4 40.9 30.0 17.9 10.9
Year Lowest Occurred 1977 1978 1971 1997 1984 1982 1984 1976 1981 1987 1976 2000 1977
Mean Precipitation (in.) 4.23 4.14 5.55 4.23 5.51 4.58 4.46 3.58 3.79 3.43 4.73 5.06 53.29
Highest Precipitation (in.) 11.41 10.32 14.93 9.38 12.91 13.42 9.72 6.93 10.98 8.30 9.95 13.97 14.93
Year Highest Occurred 1999 1989 1975 1979 1983 1998 1979 1984 1979 1995 1973 1990 1975
Lowest Precipitation (in.) 0.46 1.31 1.99 1.01 2.23 0.07 2.11 0.74 0.54 0.33 0.79 1.20 0.07
Year Lowest Occurred 1984 1978 1982 1992 1988 1988 1997 1996 1983 2000 1976 1985 1988
Heating Degree Days (F) 947. 732. 520. 242. 90. 3. 0. 0. 28. 227. 496. 818. 4103.
Cooling Degree Days (F) 0. 0. 0. 20. 133. 292. 426. 381. 198. 41. 2. 0. 1493.

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