DENAIR 3 NNE, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(042389) DENAIR 3 NNE
From Year=1948 To Year=1984
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	155	270	394	536	767	937	1097	1043	901	676	353	161	7290
40 S	155	425	819	1355	2122	3059	4156	5199	6100	6776	7129	7290	7290
45 M	64	141	242	386	612	787	942	888	751	521	211	61	5607
45 S	64	205	447	833	1445	2232	3174	4062	4813	5334	5546	5607	5607
50 M	20	51	110	242	457	637	787	733	601	368	98	17	4121
50 S	20	71	181	423	880	1517	2304	3038	3638	4006	4104	4121	4121
55 M	4	10	31	122	305	487	632	578	451	220	29	3	2872
55 S	4	14	45	166	472	959	1591	2169	2620	2840	2869	2872	2872
60 M	0	1	4	44	169	338	477	423	302	100	4	0	1863
60 S	0	1	5	49	218	556	1033	1457	1759	1859	1863	1863	1863

Corn Growing Degree Days
50 M	75	153	246	341	480	576	662	641	562	438	223	82	4478
50 S	75	228	474	815	1295	1870	2532	3173	3735	4173	4396	4478	4478

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 Jul 28, 2006
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