BARSTOW, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(040521) BARSTOW FIRE STATION
From Year=1980 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	240	315	517	695	956	1191	1416	1379	1132	826	439	207	9311
40 S	240	555	1071	1766	2722	3913	5329	6708	7840	8665	9104	9311	9311
45 M	113	186	363	545	801	1041	1261	1224	982	671	295	91	7572
45 S	113	299	662	1207	2008	3049	4309	5533	6515	7186	7481	7572	7572
50 M	32	87	222	397	646	891	1106	1069	832	516	171	26	5994
50 S	32	119	340	737	1384	2274	3380	4449	5281	5797	5968	5994	5994
55 M	4	28	111	260	493	741	951	914	682	365	78	5	4632
55 S	4	33	144	404	896	1637	2588	3502	4184	4549	4627	4632	4632
60 M	0	6	41	146	346	591	796	759	532	227	24	0	3468
60 S	0	7	48	194	540	1131	1926	2685	3217	3444	3468	3468	3468

Corn Growing Degree Days
50 M	168	203	327	437	601	730	857	839	705	519	281	145	5811
50 S	168	370	697	1134	1735	2465	3323	4162	4867	5386	5667	5811	5811

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