FREDERICKSBURG NATL PK, VIRGINIA

Period of Record General Climate Summary - Heating Degree Days

From Year=1893 To Year=1997
Station:(443192) FREDERICKSBURG NATL PK
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
65 916 787 597 311 95 12 0 2 43 253 533 845 4395
60 762 647 452 194 37 2 0 0 14 142 392 690 3333
57 671 564 369 137 18 1 0 0 5 92 313 599 2768
55 610 509 317 104 10 0 0 0 3 66 263 539 2421
50 463 377 200 44 1 0 0 0 0 22 157 395 1660
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