NORFOLK WSO AIRPORT, VIRGINIA

Period of Record General Climate Summary - Heating Degree Days

From Year=1946 To Year=2012
Station:(446139) NORFOLK 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
65 752 644 496 236 68 4 0 0 10 145 380 651 3387
60 601 506 357 133 20 0 0 0 1 63 251 501 2433
57 512 426 280 85 8 0 0 0 0 33 183 415 1941
55 455 374 233 59 3 0 0 0 0 20 144 360 1648
50 322 255 131 18 0 0 0 0 0 4 68 235 1033
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