KULM, NORTH DAKOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(324843) KULM
From Year=1904 To Year=1958
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	21	144	338	651	810	814	606	228	43	0	3653
40 S	0	1	22	165	503	1154	1964	2777	3383	3611	3653	3653	3653
45 M	0	0	7	83	213	501	655	659	464	137	15	0	2733
45 S	0	0	7	90	303	803	1458	2117	2581	2718	2733	2733	2733
50 M	0	0	2	39	111	351	500	504	332	68	3	0	1909
50 S	0	0	2	41	152	503	1002	1506	1838	1906	1909	1909	1909
55 M	0	0	0	15	45	208	345	351	213	27	0	0	1204
55 S	0	0	0	15	60	268	614	964	1177	1204	1204	1204	1204
60 M	0	0	0	4	13	103	197	208	114	9	0	0	647
60 S	0	0	0	4	16	119	316	524	638	647	647	647	647

Corn Growing Degree Days
50 M	1	2	21	117	210	386	508	520	383	169	46	0	2362
50 S	1	3	24	141	351	737	1245	1765	2147	2316	2361	2362	2362

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