LOUISVILLE WSO AIRPORT, KENTUCKY

Period of Record General Climate Summary - Heating Degree Days

From Year=1948 To Year=2012
Station:(154954) LOUISVILLE WSO AIRPORT
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
65 968 781 580 267 81 6 0 1 35 238 539 856 4352
60 814 640 438 165 32 1 0 0 10 135 400 703 3337
57 723 557 358 115 15 0 0 0 4 88 322 612 2797
55 663 503 308 87 9 0 0 0 2 64 274 553 2464
50 517 374 197 37 2 0 0 0 0 22 170 411 1731
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