CASA GRANDE NM, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(021314) CASA GRANDE NATL MONUME
From Year=1906 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	341	403	605	805	1094	1337	1567	1517	1299	971	559	344	10841
40 S	341	744	1349	2153	3247	4584	6151	7668	8967	9939	10498	10841	10841
45 M	200	267	450	655	939	1187	1412	1362	1149	816	411	203	9051
45 S	200	467	918	1572	2511	3698	5110	6472	7621	8438	8848	9051	9051
50 M	89	147	301	505	784	1037	1257	1207	999	662	271	92	7351
50 S	89	236	537	1042	1826	2863	4120	5327	6326	6988	7259	7351	7351
55 M	26	60	170	358	629	887	1102	1052	849	508	151	27	5819
55 S	26	86	256	614	1243	2130	3232	4284	5133	5641	5792	5819	5819
60 M	4	15	74	223	475	737	947	897	699	359	63	4	4499
60 S	4	20	94	316	792	1528	2476	3372	4072	4431	4494	4499	4499

Corn Growing Degree Days
50 M	270	305	423	517	642	754	937	919	779	606	401	270	6822
50 S	270	575	997	1514	2156	2909	3846	4765	5545	6150	6552	6822	6822

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