BERGLAND DAM, MICHIGAN

Period of Record General Climate Summary - Growing Degree Days

Station:(200718) BERGLAND HYDRO PLANT
From Year=1888 To Year=2012
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	0	0	12	93	359	622	780	707	451	193	21	0	3239
40 S	0	0	12	106	465	1086	1866	2573	3024	3217	3238	3239	3239
45 M	0	0	4	47	235	473	625	552	312	108	7	0	2362
45 S	0	0	4	50	285	758	1383	1936	2247	2356	2362	2362	2362
50 M	0	0	1	21	139	331	470	399	193	54	2	0	1610
50 S	0	0	1	22	160	492	962	1361	1554	1609	1610	1610	1610
55 M	0	0	0	8	71	207	319	255	105	24	0	0	990
55 S	0	0	0	8	80	286	606	861	966	990	990	990	990
60 M	0	0	0	3	32	110	186	134	49	8	0	0	520
60 S	0	0	0	3	34	144	330	464	513	520	520	520	520

Corn Growing Degree Days
50 M	0	1	12	81	245	390	493	441	273	126	14	0	2076
50 S	0	1	13	94	339	729	1222	1663	1936	2063	2076	2076	2076

M = Monthly Data
S - Running sum of monthly data.
Growing Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. This is done for each day of the month and summed.
Corn Growing Degree Day units have the limitations that the maximum daily temperatures greater than 86 F are set to 86 F and minimums less than 50 F are set to 50 F.
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