EDGARTOWN, MASSACHUSETTS

Period of Record General Climate Summary - Heating Degree Days

Station:(192501) EDGARTOWN
From Year=1946 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	1064	952	851	572	311	77	7	11	89	334	586	919	5773
60	909	811	696	422	173	20	0	1	29	199	437	764	4462
57	816	726	604	334	106	7	0	0	12	133	351	671	3759
55	754	670	542	277	70	3	0	0	6	97	296	609	3323
50	599	528	389	148	17	0	0	0	0	35	174	457	2347

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