HOLLISTER, IDAHO

Period of Record General Climate Summary - Growing Degree Days

Station:(104295) HOLLISTER
From Year=1948 To Year=2006
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	9	24	69	205	424	652	950	884	589	319	67	12	4203
40 S	9	33	101	307	731	1383	2333	3217	3806	4125	4192	4203	4203
45 M	1	5	25	110	284	502	795	729	442	198	22	2	3115
45 S	1	6	31	141	425	927	1723	2452	2894	3091	3113	3115	3115
50 M	0	1	6	48	166	357	640	574	304	104	4	0	2205
50 S	0	1	7	55	222	579	1219	1793	2097	2201	2205	2205	2205
55 M	0	0	1	16	83	228	486	421	184	42	0	0	1460
55 S	0	0	1	17	100	327	814	1234	1418	1460	1460	1460	1460
60 M	0	0	0	4	32	124	335	275	89	11	0	0	870
60 S	0	0	0	4	36	160	495	770	859	870	870	870	870

Corn Growing Degree Days
50 M	4	16	56	157	285	416	610	570	384	224	50	7	2780
50 S	4	21	77	233	518	935	1545	2115	2499	2723	2773	2780	2780

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 Jul 28, 2006
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