RALEIGH 4 SW, NORTH CAROLINA

Period of Record General Climate Summary - Cooling Degree Days

From Year=1892 To Year=2010
Station:(317074) RALEIGH 4 SW
Averages Daily Extremes
Cooling Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
55 16 18 76 199 418 616 730 700 517 231 69 19 3607
57 10 12 55 159 359 556 668 638 457 184 48 12 3158
60 4 5 32 107 275 466 575 545 370 123 26 5 2534
65 1 1 10 45 152 320 420 390 233 51 6 1 1630
70 0 0 2 12 62 182 268 239 119 14 1 0 898
Cooling Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. 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