BERGLAND DAM, MICHIGAN

Period of Record General Climate Summary - Heating Degree Days

Station:(200718) BERGLAND HYDRO PLANT
From Year=1888 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	1687	1458	1287	806	442	174	80	121	319	641	1049	1492	9555
60	1532	1316	1132	658	308	88	26	47	200	492	899	1337	8034
57	1439	1232	1039	571	236	52	10	23	141	407	809	1244	7201
55	1377	1175	977	514	192	35	4	13	107	352	750	1182	6678
50	1222	1034	823	377	105	10	0	2	45	228	601	1027	5472

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