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Period of Record General Climate Summary - Heating Degree Days

Station:(215615) MORA
From Year=1904 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	1728	1427	1165	659	326	97	24	51	244	585	1041	1528	8877
60	1573	1286	1010	513	204	37	4	14	140	437	891	1373	7483
57	1480	1201	917	429	144	18	1	5	92	353	801	1280	6722
55	1418	1145	855	374	110	10	0	2	67	301	741	1218	6243
50	1263	1004	702	250	48	2	0	0	25	186	593	1063	5137

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