JAMESTOWN, TENNESSEE

Period of Record General Climate Summary - Heating Degree Days

From Year=1951 To Year=2012
Station:(404590) JAMESTOWN
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
65 938 820 552 307 128 7 2 3 47 305 544 882 4532
60 784 678 413 198 65 0 0 1 15 185 398 728 3465
57 693 595 335 143 42 0 0 0 6 131 316 636 2897
55 633 539 287 113 29 0 0 0 3 100 265 575 2544
50 488 405 184 56 10 0 0 0 0 44 158 429 1774
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