MOUNT AIRY, NORTH CAROLINA

Period of Record General Climate Summary - Heating Degree Days

From Year=1893 To Year=2012
Station:(315890) MOUNT AIRY
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
65 854 719 544 277 88 9 1 2 40 247 534 806 4121
60 699 578 397 163 33 2 0 0 12 136 389 651 3061
57 607 494 315 109 16 0 0 0 5 87 308 559 2499
55 547 439 264 79 9 0 0 0 2 61 257 498 2156
50 400 307 154 30 1 0 0 0 0 21 148 353 1414
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