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Period of Record General Climate Summary - Growing Degree Days

Station:(205178) MARQUETTE
From Year=1948 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	2	17	105	342	600	820	804	544	260	43	2	3538
40 S	0	2	19	124	466	1066	1886	2690	3234	3493	3536	3538	3538
45 M	0	0	6	55	217	451	665	649	396	149	15	1	2605
45 S	0	0	6	62	279	730	1395	2044	2440	2590	2605	2605	2605
50 M	0	0	2	26	125	310	510	494	259	75	5	0	1806
50 S	0	0	2	28	153	463	973	1467	1726	1801	1806	1806	1806
55 M	0	0	1	11	64	190	357	342	150	32	1	0	1148
55 S	0	0	1	12	76	266	623	965	1114	1147	1148	1148	1148
60 M	0	0	0	4	28	102	218	204	74	12	0	0	642
60 S	0	0	0	4	32	133	352	556	630	641	642	642	642

Corn Growing Degree Days
50 M	0	1	10	59	181	336	508	494	289	116	15	1	2008
50 S	0	1	10	69	251	586	1094	1588	1876	1993	2008	2008	2008

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