GROSS RSVR, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(053629) GROSS RESERVOIR
From Year=1978 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	12	8	63	112	304	571	793	713	467	203	71	13	3329
40 S	12	20	82	194	498	1069	1861	2574	3042	3245	3316	3329	3329
45 M	2	1	21	44	183	423	638	559	325	103	25	2	2324
45 S	2	2	24	68	251	674	1311	1870	2194	2298	2323	2324	2324
50 M	0	0	4	11	89	283	483	405	195	36	5	0	1510
50 S	0	0	4	15	103	386	869	1274	1469	1505	1510	1510	1510
55 M	0	0	0	2	32	159	330	257	92	7	0	0	880
55 S	0	0	0	2	34	194	524	781	873	880	880	880	880
60 M	0	0	0	0	7	68	186	125	29	0	0	0	415
60 S	0	0	0	0	7	74	261	386	414	415	415	415	415

Corn Growing Degree Days
50 M	14	11	66	105	211	364	497	449	318	158	66	11	2268
50 S	14	25	91	195	406	770	1267	1715	2034	2192	2257	2268	2268

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