VALLEY HEAD, ALABAMA

Period of Record General Climate Summary - Heating Degree Days

From Year=1893 To Year=2012
Station:(018469) VALLEY 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
65 793 655 479 231 70 6 0 0 24 197 482 733 3670
60 640 516 340 133 27 1 0 0 7 105 344 580 2694
57 550 435 266 90 14 0 0 0 3 67 270 491 2185
55 491 383 221 66 8 0 0 0 1 48 224 434 1877
50 354 265 128 27 1 0 0 0 0 17 129 300 1222
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