PORT GIBSON 1 NW, MISSISSIPPI

Period of Record General Climate Summary - Heating Degree Days

From Year=1893 To Year=2012
Station:(227132) PORT GIBSON 1 NW
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
65 572 445 279 102 16 0 0 0 8 109 317 528 2375
60 432 321 172 45 3 0 0 0 1 49 204 388 1617
57 354 254 122 25 1 0 0 0 0 27 149 312 1245
55 306 213 94 16 0 0 0 0 0 17 117 265 1029
50 199 127 44 4 0 0 0 0 0 4 56 160 594
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