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Period of Record General Climate Summary - Growing Degree Days

Station:(215325) MELROSE
From Year=1954 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	1	28	190	533	798	972	893	580	251	30	1	4278
40 S	0	1	29	219	753	1551	2523	3416	3996	4247	4277	4278	4278
45 M	0	0	12	106	387	648	817	738	433	147	10	0	3299
45 S	0	0	12	117	504	1152	1970	2708	3141	3288	3298	3299	3299
50 M	0	0	4	51	255	499	662	583	296	76	3	0	2428
50 S	0	0	4	54	309	808	1470	2053	2349	2425	2428	2428	2428
55 M	0	0	1	21	146	353	508	429	179	33	0	0	1670
55 S	0	0	1	22	169	521	1029	1458	1637	1670	1670	1670	1670
60 M	0	0	0	7	71	218	354	281	93	11	0	0	1036
60 S	0	0	0	8	79	297	651	932	1025	1036	1036	1036	1036

Corn Growing Degree Days
50 M	0	1	20	127	326	506	643	580	352	153	20	1	2729
50 S	0	1	21	148	474	980	1623	2204	2556	2709	2729	2729	2729

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