NEWARK, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(046144) NEWARK
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	280	346	456	523	649	736	824	836	799	701	463	300	6912
40 S	280	626	1082	1605	2254	2990	3813	4650	5449	6149	6612	6912	6912
45 M	140	208	302	373	494	586	669	681	649	546	313	156	5117
45 S	140	348	650	1023	1517	2103	2772	3453	4102	4647	4960	5117	5117
50 M	45	90	159	226	340	436	514	526	499	391	171	53	3448
50 S	45	135	294	520	860	1295	1809	2335	2834	3225	3396	3448	3448
55 M	8	23	57	102	189	286	359	371	349	238	65	9	2056
55 S	8	31	88	190	379	665	1024	1395	1744	1982	2047	2056	2056
60 M	0	3	11	33	75	145	204	217	201	105	14	1	1009
60 S	0	3	14	48	123	267	472	689	890	995	1008	1009	1009

Corn Growing Degree Days
50 M	119	158	219	267	354	432	508	522	494	405	232	130	3839
50 S	119	277	496	763	1116	1548	2056	2578	3072	3477	3709	3839	3839

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