BACK BAY WILDLIFE REFUG, VIRGINIA

Period of Record General Climate Summary - Cooling Degree Days

From Year=1953 To Year=2012
Station:(440385) BACK BAY WILDLIFE REFUG
Averages Daily Extremes
Cooling Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
55 5 8 39 143 339 575 724 701 539 280 81 14 3447
57 2 4 27 109 281 515 662 639 479 226 56 8 3008
60 0 2 13 69 202 426 569 546 389 154 29 2 2401
65 0 0 3 26 98 279 414 391 244 63 7 0 1525
70 0 0 0 6 34 149 261 238 118 17 1 0 824
Cooling Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. 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