TACNA 3 NE, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(028396) TACNA 3 NE
From Year=1969 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	388	469	682	848	1133	1350	1596	1584	1352	1014	595	358	11369
40 S	388	857	1539	2387	3520	4870	6467	8051	9402	10416	11011	11369	11369
45 M	239	329	527	698	978	1200	1441	1429	1202	859	446	210	9558
45 S	239	568	1095	1794	2771	3972	5413	6842	8043	8902	9348	9558	9558
50 M	112	195	373	548	823	1050	1286	1274	1052	704	300	88	7805
50 S	112	307	680	1229	2051	3102	4388	5662	6713	7417	7717	7805	7805
55 M	32	87	229	399	668	900	1131	1119	902	549	170	21	6207
55 S	32	119	348	747	1415	2315	3446	4565	5467	6016	6186	6207	6207
60 M	5	24	112	258	513	750	976	964	752	398	73	2	4827
60 S	5	29	141	399	912	1663	2639	3603	4354	4752	4825	4827	4827

Corn Growing Degree Days
50 M	299	336	453	532	678	783	963	964	821	631	417	283	7160
50 S	299	635	1089	1621	2299	3082	4045	5009	5830	6461	6878	7160	7160

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