DEER VALLEY, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(022462) DEER VALLEY
From Year=1950 To Year=1985
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	360	427	588	782	1087	1327	1570	1499	1296	988	576	382	10881
40 S	360	787	1376	2157	3244	4571	6141	7640	8935	9923	10499	10881	10881
45 M	216	289	434	632	932	1177	1415	1344	1146	833	427	234	9078
45 S	216	505	939	1570	2502	3679	5094	6438	7583	8416	8843	9078	9078
50 M	98	163	284	482	777	1027	1260	1189	996	678	284	109	7345
50 S	98	261	545	1026	1803	2830	4090	5279	6275	6953	7237	7345	7345
55 M	27	69	154	335	622	877	1105	1034	846	524	158	31	5782
55 S	27	96	251	586	1207	2085	3190	4223	5069	5593	5751	5782	5782
60 M	4	19	62	202	467	727	950	879	696	373	66	4	4449
60 S	4	23	85	287	754	1482	2431	3310	4006	4379	4445	4449	4449

Corn Growing Degree Days
50 M	244	289	382	496	665	789	964	935	808	621	375	262	6830
50 S	244	533	915	1411	2076	2865	3830	4765	5572	6193	6569	6830	6830

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