YUMA QUARTERMASTER DT, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(029656) YUMA QUARTERMASTER DEP
From Year=1993 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	558	572	820	952	1236	1443	1644	1652	1418	1122	727	499	12643
40 S	558	1129	1949	2901	4137	5581	7225	8876	10295	11416	12143	12643	12643
45 M	404	431	665	802	1081	1293	1489	1497	1268	967	577	344	10818
45 S	404	835	1500	2302	3383	4676	6165	7662	8930	9897	10474	10818	10818
50 M	254	291	510	652	926	1143	1334	1342	1118	812	428	197	9007
50 S	254	545	1055	1707	2633	3776	5110	6452	7570	8382	8810	9007	9007
55 M	122	161	357	502	771	993	1179	1187	968	657	286	79	7262
55 S	122	283	640	1142	1913	2907	4085	5272	6240	6897	7183	7262	7262
60 M	37	63	213	355	616	843	1024	1032	818	502	159	17	5679
60 S	37	100	313	668	1284	2128	3152	4183	5001	5503	5662	5679	5679

Corn Growing Degree Days
50 M	333	350	511	590	747	835	970	987	847	694	453	295	7612
50 S	333	683	1194	1784	2531	3366	4336	5324	6171	6864	7317	7612	7612

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