SHIPROCK, NEW MEXICO

Period of Record General Climate Summary - Growing Degree Days

Station:(298284) SHIPROCK
From Year=1926 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	34	159	376	668	920	1133	1073	793	443	98	8	5711
40 S	5	40	199	574	1242	2162	3295	4368	5161	5604	5703	5711	5711
45 M	0	8	69	240	514	770	978	918	643	299	34	1	4473
45 S	0	8	77	317	830	1600	2579	3497	4139	4438	4472	4473	4473
50 M	0	1	21	127	363	620	823	763	493	171	7	0	3389
50 S	0	1	22	149	512	1132	1956	2718	3211	3382	3389	3389	3389
55 M	0	0	4	51	225	470	668	608	345	74	0	0	2446
55 S	0	0	4	55	280	750	1419	2027	2371	2446	2446	2446	2446
60 M	0	0	0	14	112	323	513	453	205	22	0	0	1643
60 S	0	0	0	14	126	449	963	1416	1621	1643	1643	1643	1643

Corn Growing Degree Days
50 M	16	54	164	300	458	574	694	671	527	349	116	17	3941
50 S	16	70	235	535	992	1567	2261	2932	3459	3808	3924	3941	3941

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