NATCHEZ, MISSISSIPPI

Period of Record General Climate Summary - Heating Degree Days

From Year=1892 To Year=2012
Station:(226177) NATCHEZ
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
65 488 371 220 69 9 0 0 0 4 70 253 450 1934
60 355 256 127 27 2 0 0 0 0 28 153 319 1268
57 284 195 87 14 1 0 0 0 0 14 107 249 950
55 240 160 65 8 0 0 0 0 0 8 80 207 768
50 147 89 27 1 0 0 0 0 0 2 34 117 417
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