SULLIVANS ISLAND, SOUTH CAROLINA

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 56.6 58.9 65.1 72.2 79.8 85.2 88.5 87.4 83.1 75.9 68.0 59.7 73.4
Highest Mean Max. Temperature (F) 68.1 65.7 72.8 77.5 83.7 91.5 92.4 92.0 86.6 79.4 73.4 68.6 92.4
Year Highest Occurred 1974 1990 1997 1979 2000 1998 1993 1999 1998 1971 1978 1971 1993
Lowest Mean Max. Temperature (F) 48.2 48.1 58.5 67.4 76.3 81.1 84.6 84.1 80.5 71.7 62.5 52.2 48.1
Year Lowest Occurred 1977 1978 1978 1983 1983 1979 1975 1976 1984 1987 1976 1989 1978
Mean Temperature (F) 47.1 48.6 55.3 63.0 71.5 77.8 81.1 80.0 75.7 66.9 58.3 50.0 64.6
Highest Mean Temperature (F) 59.7 56.7 64.5 68.1 76.0 82.8 83.6 84.2 78.9 72.1 65.6 58.6 84.2
Year Highest Occurred 1974 1990 1997 1979 2000 1998 1999 1999 1998 1985 1985 1971 1999
Lowest Mean Temperature (F) 37.9 38.8 47.9 58.5 68.1 74.0 78.5 76.9 72.2 61.7 51.2 41.2 37.9
Year Lowest Occurred 1977 1978 1971 1993 1994 1997 1973 1976 1979 1987 1976 2000 1977
Mean Min. Temperature (F) 37.5 38.2 45.4 53.7 63.2 70.3 73.7 72.5 68.3 57.9 48.6 40.2 55.8
Highest Mean Min. Temperature (F) 51.3 47.6 56.1 59.0 68.2 74.9 76.7 76.3 71.6 65.8 59.4 48.5 76.7
Year Highest Occurred 1974 1990 1997 1999 2000 1986 1999 1999 1986 1985 1985 1971 1999
Lowest Mean Min. Temperature (F) 27.6 29.2 35.3 48.0 56.9 64.9 70.6 69.6 62.4 51.6 39.8 29.2 27.6
Year Lowest Occurred 1977 1980 1971 1993 1994 1974 1973 1989 1981 1987 1976 2000 1977
Mean Precipitation (in.) 4.40 3.23 4.16 2.92 2.88 4.89 4.76 6.27 5.32 3.80 3.10 3.65 49.38
Highest Precipitation (in.) 8.84 9.28 8.81 7.62 14.33 17.90 11.33 20.62 11.43 19.23 6.98 7.26 20.62
Year Highest Occurred 1998 1998 1983 1982 1976 1973 1994 1971 1988 1994 1992 1994 1971
Lowest Precipitation (in.) 0.65 0.45 1.24 0.00 0.07 0.89 1.25 1.02 0.45 0.08 0.44 0.74 0.00
Year Lowest Occurred 1974 1991 1995 1976 2000 1978 1973 1983 1986 2000 1996 1984 1976
Heating Degree Days (F) 568. 461. 321. 117. 15. 0. 0. 0. 1. 71. 229. 477. 2260.
Cooling Degree Days (F) 0. 1. 18. 54. 216. 382. 499. 465. 321. 131. 27. 10. 2124.

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