JACKSON 4 NW, MISSISSIPPI

Period of Record General Climate Summary - Heating Degree Days

From Year=1930 To Year=1971
Station:(224467) JACKSON 4 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
65 548 412 291 89 11 0 0 0 5 85 314 494 2247
60 411 290 181 39 2 0 0 0 1 35 202 354 1516
57 335 226 128 20 0 0 0 0 0 18 146 278 1152
55 288 187 100 12 0 0 0 0 0 11 114 231 943
50 185 106 47 2 0 0 0 0 0 2 54 131 528
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