BISBEE, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(020775) BISBEE 2 WNW
From Year=1985 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	147	203	364	556	797	1019	1073	1000	861	630	319	146	7112
40 S	147	349	713	1268	2065	3084	4157	5156	6017	6647	6966	7112	7112
45 M	53	97	223	408	642	869	918	845	711	477	188	57	5486
45 S	53	150	373	781	1423	2291	3210	4054	4765	5241	5430	5486	5486
50 M	11	30	110	267	487	719	763	690	561	325	86	12	4061
50 S	11	42	152	419	906	1625	2388	3077	3638	3963	4048	4061	4061
55 M	1	5	37	144	335	569	608	535	411	185	26	1	2854
55 S	1	6	43	187	521	1090	1698	2233	2643	2828	2853	2854	2854
60 M	0	1	4	54	192	419	453	380	262	74	2	0	1841
60 S	0	1	5	59	251	671	1124	1503	1765	1839	1841	1841	1841

Corn Growing Degree Days
50 M	118	152	259	370	519	657	712	672	563	400	215	116	4751
50 S	118	269	528	898	1417	2074	2786	3458	4021	4420	4636	4751	4751

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