MARINETTE, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(025282) MARINETTE
From Year=1913 To Year=1964
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	320	408	616	818	1071	1334	1568	1491	1280	952	571	378	10806
40 S	320	728	1344	2162	3233	4567	6135	7626	8906	9858	10428	10806	10806
45 M	180	271	462	668	916	1184	1413	1336	1130	797	421	231	9008
45 S	180	451	912	1580	2496	3681	5094	6430	7560	8356	8777	9008	9008
50 M	74	148	311	518	761	1034	1258	1181	980	642	274	109	7291
50 S	74	223	534	1051	1813	2847	4105	5286	6266	6908	7182	7291	7291
55 M	20	59	174	370	607	884	1103	1026	830	488	143	34	5739
55 S	20	79	253	623	1230	2114	3217	4244	5073	5561	5704	5739	5739
60 M	4	16	72	232	453	734	948	871	680	337	52	6	4406
60 S	4	20	92	325	777	1512	2460	3331	4011	4348	4400	4406	4406

Corn Growing Degree Days
50 M	259	293	427	515	631	760	938	903	767	593	412	287	6786
50 S	259	552	980	1495	2125	2886	3824	4727	5494	6086	6499	6786	6786

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