NORRIS, TENNESSEE

Period of Record General Climate Summary - Heating Degree Days

From Year=1935 To Year=2012
Station:(406619) NORRIS
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
65 910 729 526 262 90 8 0 1 31 241 542 829 4171
60 755 589 382 155 36 2 0 0 8 133 397 674 3133
57 663 506 303 106 18 0 0 0 3 85 317 582 2585
55 603 452 255 79 11 0 0 0 1 61 267 522 2252
50 456 323 152 34 2 0 0 0 0 22 160 378 1526
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