GRANDFATHER MOUNTAIN, NORTH CAROLINA

Period of Record General Climate Summary - Heating Degree Days

From Year=1955 To Year=2012
Station:(313565) GRANDFATHER MOUNTAIN
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 1149 986 860 578 354 160 82 96 241 531 771 1025 6833
60 994 844 705 430 213 60 17 23 120 378 621 870 5276
57 901 760 612 348 146 29 5 7 71 291 532 777 4479
55 839 703 552 298 110 17 2 3 48 238 473 715 3997
50 685 562 407 189 48 4 0 0 14 132 333 562 2936
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