TWIN FALLS KMVT, IDAHO

Period of Record General Climate Summary - Growing Degree Days

Station:(109293) TWIN FALLS KMVT
From Year=1980 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	7	26	116	260	523	755	1026	963	643	329	78	12	4736
40 S	7	32	148	408	931	1685	2711	3674	4317	4646	4724	4736	4736
45 M	1	5	44	149	373	605	871	808	494	200	29	2	3579
45 S	1	6	50	198	571	1176	2046	2854	3348	3548	3577	3579	3579
50 M	0	0	12	71	240	457	716	653	351	101	7	0	2607
50 S	0	0	12	83	323	780	1496	2149	2499	2600	2607	2607	2607
55 M	0	0	1	27	137	316	561	498	221	41	1	0	1804
55 S	0	0	1	28	165	481	1042	1541	1762	1803	1804	1804	1804
60 M	0	0	0	8	66	192	408	347	116	12	0	0	1148
60 S	0	0	0	8	74	266	674	1021	1137	1148	1148	1148	1148

Corn Growing Degree Days
50 M	4	21	85	173	324	465	641	605	419	235	57	7	3037
50 S	4	25	110	283	607	1073	1714	2319	2738	2973	3031	3037	3037

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