WATERLOO, ALABAMA

Period of Record General Climate Summary - Heating Degree Days

From Year=1922 To Year=1976
Station:(018686) WATERLOO
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
65 803 660 497 175 58 4 0 0 21 184 453 706 3560
60 651 521 358 93 20 0 0 0 6 95 317 553 2613
57 562 439 281 57 8 0 0 0 2 57 244 465 2118
55 505 387 234 39 4 0 0 0 1 39 200 409 1818
50 369 266 136 11 1 0 0 0 0 11 108 279 1181
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