ROSWELL, NEW MEXICO

Period of Record General Climate Summary - Growing Degree Days

Station:(297604) ROSWELL
From Year=1893 To Year=1950
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	92	163	331	593	859	1035	1153	1140	917	604	276	115	7277
40 S	92	256	586	1179	2038	3073	4226	5365	6282	6886	7162	7277	7277
45 M	33	78	203	445	704	885	998	985	767	452	157	46	5751
45 S	33	111	314	759	1463	2348	3346	4330	5097	5548	5705	5751	5751
50 M	7	29	103	304	549	735	843	830	617	306	67	14	4404
50 S	7	37	139	443	992	1727	2569	3399	4016	4322	4389	4404	4404
55 M	1	8	39	176	395	585	688	675	468	177	20	2	3234
55 S	1	9	48	224	620	1205	1892	2567	3035	3212	3232	3234	3234
60 M	0	2	9	77	248	437	533	520	324	79	3	0	2232
60 S	0	2	12	89	337	773	1306	1826	2150	2229	2232	2232	2232

Corn Growing Degree Days
50 M	123	170	279	405	541	655	755	737	588	406	241	140	5039
50 S	123	293	572	977	1518	2173	2928	3664	4253	4659	4899	5039	5039

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