NATCHEZ, MISSISSIPPI

Period of Record General Climate Summary - Cooling Degree Days

From Year=1892 To Year=2012
Station:(226177) NATCHEZ
Averages Daily Extremes
Cooling Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
55 74 85 203 352 564 735 825 824 660 387 162 78 4946
57 55 64 162 297 502 675 763 762 600 330 128 58 4396
60 34 39 110 221 410 585 670 669 510 251 85 35 3619
65 11 13 48 113 263 435 515 514 363 138 34 11 2459
70 2 3 14 40 132 286 360 359 224 57 8 2 1486
Cooling Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. 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