NANTUCKET MEM AP, MASSACHUSETTS

Period of Record General Climate Summary - Heating Degree Days

Station:(195159) NANTUCKET FAA AIRPORT
From Year=1948 To Year=2012
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 1037 943 874 621 381 128 12 18 110 339 576 889 5930
60 882 802 719 472 233 40 1 1 37 201 427 734 4547
57 789 717 626 382 152 14 0 0 15 135 339 641 3811
55 727 660 564 323 106 6 0 0 7 98 283 579 3354
50 572 519 410 183 30 0 0 0 1 36 160 426 2337
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 Oct 31, 2012
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Western Regional Climate Center, wrcc@dri.edu