BENSON, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(020680) BENSON
From Year=1894 To Year=1975
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	205	266	449	620	880	1128	1272	1204	1022	741	387	212	8385
40 S	205	471	920	1540	2420	3548	4820	6024	7045	7786	8173	8385	8385
45 M	92	147	300	471	725	978	1117	1049	872	586	246	96	6677
45 S	92	239	538	1009	1734	2712	3829	4878	5749	6336	6581	6677	6677
50 M	26	60	168	324	570	828	962	894	722	433	126	27	5140
50 S	26	85	254	578	1147	1976	2938	3832	4553	4987	5113	5140	5140
55 M	4	15	71	189	416	678	807	739	572	285	46	4	3824
55 S	4	19	90	278	695	1373	2180	2919	3491	3775	3821	3824	3824
60 M	0	2	20	83	268	528	652	584	422	151	8	0	2719
60 S	0	2	22	105	373	902	1554	2137	2559	2710	2719	2719	2719

Corn Growing Degree Days
50 M	207	233	345	437	559	671	799	775	646	507	325	207	5711
50 S	207	440	786	1223	1781	2453	3251	4026	4672	5179	5504	5711	5711

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