HILTON HEAD, SOUTH CAROLINA

Period of Record General Climate Summary - Heating Degree Days

From Year=1953 To Year=1998
Station:(384169) HILTON HEAD
Averages Daily Extremes
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 495 371 237 77 8 1 0 0 1 55 213 424 1883
60 351 249 132 26 1 0 0 0 0 17 116 288 1181
57 271 186 87 11 0 0 0 0 0 6 74 216 852
55 223 149 62 6 0 0 0 0 0 3 52 173 668
50 122 76 23 1 0 0 0 0 0 0 17 87 326
Heating Degree Day units are computed as the difference between the base temperature and the daily average temperature. (Base Temp. - Daily Ave. Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is below the base temperature. Negative numbers are discarded. Example: If the days high temperature was 65 and the low temperature was 31, the base 50 heating degree day units is 50 - ((65 + 31) / 2) = 2. This is done for each day of the month and summed.
Table updated on May 22,
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Southeast Regional Climate Center, SERCC Webmaster