DELANO, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(042346) DELANO
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	209	357	456	652	863	1060	1270	1309	1153	838	373	117	8656
40 S	209	566	1022	1674	2537	3596	4866	6175	7328	8166	8540	8656	8656
45 M	85	213	303	502	708	910	1115	1154	1003	683	223	8	6906
45 S	85	298	600	1103	1810	2720	3834	4988	5992	6675	6898	6906	6906
50 M	11	84	170	356	553	760	960	999	853	528	102	0	5375
50 S	11	95	265	621	1173	1933	2893	3892	4745	5273	5375	5375	5375
55 M	0	16	69	222	398	610	805	844	703	373	33	0	4072
55 S	0	16	85	307	704	1314	2118	2962	3666	4039	4072	4072	4072
60 M	0	3	4	114	250	460	650	689	553	231	5	0	2959
60 S	0	3	7	122	371	831	1481	2170	2723	2954	2959	2959	2959

Corn Growing Degree Days
50 M	116	212	266	393	535	662	802	812	738	533	196	105	5370
50 S	116	328	594	987	1522	2184	2986	3798	4536	5069	5265	5370	5370

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