ANNAPOLIS POLICE BRKS, MARYLAND

Period of Record General Climate Summary - Heating Degree Days

From Year=1951 To Year=2005
Station:(180193) ANNAPOLIS POLICE BRKS
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
65 949 795 634 302 91 9 0 1 29 241 517 841 4409
60 794 654 483 183 32 1 0 0 7 130 373 687 3345
57 701 570 396 125 14 0 0 0 2 79 293 596 2776
55 640 515 340 92 7 0 0 0 1 54 242 536 2426
50 489 379 214 35 0 0 0 0 0 15 137 389 1659
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