NEZPERCE, IDAHO

Period of Record General Climate Summary - Growing Degree Days

Station:(106424) NEZPERCE
From Year=1901 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	5	15	49	150	350	530	764	765	501	221	34	6	3389
40 S	5	20	69	219	569	1098	1863	2628	3128	3349	3383	3389	3389
45 M	1	2	13	68	213	381	609	610	355	114	8	1	2375
45 S	1	2	15	84	297	678	1287	1897	2252	2366	2374	2375	2375
50 M	0	0	2	25	109	241	455	456	224	46	1	0	1558
50 S	0	0	2	27	136	377	831	1287	1511	1557	1558	1558	1558
55 M	0	0	0	6	46	127	304	306	119	14	0	0	922
55 S	0	0	0	7	53	180	483	789	908	922	922	922	922
60 M	0	0	0	1	15	52	170	173	49	2	0	0	461
60 S	0	0	0	1	16	68	238	411	459	461	461	461	461

Corn Growing Degree Days
50 M	1	8	33	98	210	316	482	482	321	141	14	1	2107
50 S	1	9	42	140	350	666	1148	1630	1951	2092	2106	2107	2107

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