CHANDLER HEIGHTS, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(021514) CHANDLER HEIGHTS
From Year=1941 To Year=2007
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	368	438	619	832	1134	1358	1554	1487	1295	997	586	373	11043
40 S	368	806	1425	2257	3392	4750	6304	7790	9086	10083	10669	11043	11043
45 M	225	300	464	682	979	1208	1399	1332	1145	842	438	229	9244
45 S	225	525	989	1672	2651	3860	5258	6590	7735	8577	9015	9244	9244
50 M	107	175	314	533	824	1058	1244	1177	995	688	295	108	7519
50 S	107	283	597	1130	1954	3012	4256	5433	6428	7116	7411	7519	7519
55 M	34	79	181	386	669	908	1089	1022	845	534	171	33	5952
55 S	34	113	294	680	1349	2258	3346	4368	5213	5747	5918	5952	5952
60 M	6	24	81	251	515	758	934	867	695	384	77	6	4597
60 S	6	30	110	361	876	1635	2568	3435	4130	4514	4592	4597	4597

Corn Growing Degree Days
50 M	237	282	397	529	703	818	962	935	817	639	378	241	6938
50 S	237	518	915	1444	2147	2965	3928	4862	5679	6318	6696	6938	6938

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