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Period of Record General Climate Summary - Growing Degree Days

Station:(213567) HASTINGS DAM 2
From Year=1893 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	40	245	561	847	1020	954	661	327	52	2	4709
40 S	0	2	41	287	848	1694	2714	3668	4329	4656	4707	4709	4709
45 M	0	0	19	145	409	697	865	799	513	207	22	1	3676
45 S	0	0	19	164	574	1271	2135	2935	3447	3654	3676	3676	3676
50 M	0	0	9	75	271	547	710	644	369	115	9	0	2748
50 S	0	0	9	84	354	901	1611	2255	2624	2739	2748	2748	2748
55 M	0	0	3	34	156	400	555	489	240	55	2	0	1936
55 S	0	0	3	38	194	594	1149	1638	1878	1934	1936	1936	1936
60 M	0	0	1	14	79	262	400	336	137	22	0	0	1251
60 S	0	0	1	15	94	356	756	1092	1229	1251	1251	1251	1251

Corn Growing Degree Days
50 M	0	0	24	137	314	544	689	636	393	173	27	1	2939
50 S	0	1	25	162	476	1020	1709	2345	2738	2910	2938	2939	2939

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