DEMOPOLIS LOCK AND DAM, ALABAMA

Period of Record General Climate Summary - Heating Degree Days

From Year=1951 To Year=2012
Station:(012245) DEMOPOLIS LOCK AND DAM
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
65 650 494 323 119 21 0 0 0 8 125 346 569 2656
60 501 364 205 54 4 0 0 0 1 56 226 427 1839
57 417 293 149 29 1 0 0 0 0 30 166 348 1433
55 364 249 116 18 0 0 0 0 0 18 131 298 1195
50 241 154 56 4 0 0 0 0 0 4 65 187 711
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

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