KAMIAH, IDAHO

Period of Record General Climate Summary - Growing Degree Days

Station:(104793) KAMIAH
From Year=1913 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	5	29	130	288	532	716	1035	963	698	308	52	7	4763
40 S	5	33	163	452	984	1700	2735	3698	4396	4704	4755	4763	4763
45 M	0	2	43	164	378	566	880	808	548	171	14	1	3576
45 S	0	2	45	209	588	1154	2034	2842	3390	3561	3575	3576	3576
50 M	0	0	10	77	236	416	725	653	398	76	3	0	2595
50 S	0	0	10	87	323	739	1464	2117	2515	2592	2595	2595	2595
55 M	0	0	2	28	128	272	570	498	254	26	0	0	1778
55 S	0	0	2	30	158	429	1000	1498	1752	1778	1778	1778	1778
60 M	0	0	1	6	54	148	416	345	133	7	0	0	1109
60 S	0	0	1	7	61	209	624	969	1102	1109	1109	1109	1109

Corn Growing Degree Days
50 M	2	19	98	199	352	442	616	580	457	196	18	2	2982
50 S	2	22	120	319	671	1113	1729	2309	2766	2962	2980	2982	2982

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