KUNA, IDAHO

Period of Record General Climate Summary - Growing Degree Days

Station:(105038) KUNA 2 NNE
From Year=1926 To Year=1996
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	11	33	124	295	538	728	973	918	618	358	76	20	4692
40 S	11	44	168	463	1001	1729	2702	3620	4237	4596	4672	4692	4692
45 M	2	8	49	171	386	578	818	763	468	221	26	6	3496
45 S	2	10	59	229	615	1193	2011	2774	3243	3464	3490	3496	3496
50 M	0	1	13	83	246	429	663	608	325	112	6	1	2487
50 S	0	1	14	97	343	772	1435	2043	2367	2480	2486	2487	2487
55 M	0	0	2	31	132	286	508	454	196	42	1	0	1652
55 S	0	0	2	33	165	451	959	1413	1609	1651	1652	1652	1652
60 M	0	0	0	8	57	162	355	305	95	10	0	0	992
60 S	0	0	0	8	65	228	583	888	982	992	992	992	992

Corn Growing Degree Days
50 M	3	22	99	218	354	457	605	576	413	261	51	7	3068
50 S	3	26	125	343	697	1154	1759	2335	2748	3010	3061	3068	3068

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