KOFA MINE, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(024702) KOFA MINE
From Year=1952 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	513	545	733	909	1172	1411	1600	1565	1375	1104	721	509	12159
40 S	513	1059	1792	2700	3872	5284	6884	8449	9824	10929	11650	12159	12159
45 M	362	406	578	759	1017	1261	1445	1410	1225	949	572	356	10340
45 S	362	767	1346	2104	3121	4382	5828	7238	8463	9412	9984	10340	10340
50 M	221	271	425	609	862	1111	1290	1255	1075	795	424	216	8553
50 S	221	492	917	1525	2387	3499	4789	6044	7119	7914	8338	8553	8553
55 M	108	154	281	461	707	961	1135	1100	925	640	284	103	6860
55 S	108	262	543	1004	1711	2672	3808	4907	5833	6473	6757	6860	6860
60 M	37	70	161	323	553	811	980	945	775	488	165	33	5341
60 S	37	108	269	591	1144	1955	2936	3880	4656	5143	5308	5341	5341

Corn Growing Degree Days
50 M	273	308	447	588	767	897	1018	1002	900	737	440	267	7644
50 S	273	581	1028	1616	2383	3280	4299	5301	6200	6937	7377	7644	7644

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