TULIA, TEXAS

Period of Record General Climate Summary - Growing Degree Days

Station:(419175) TULIA
From Year=1947 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	82	127	276	507	800	1040	1179	1134	883	591	243	95	6957
40 S	82	209	485	992	1792	2832	4011	5145	6028	6619	6862	6957	6957
45 M	33	62	166	367	645	890	1024	979	733	442	142	40	5523
45 S	33	95	260	627	1273	2163	3187	4166	4899	5341	5483	5523	5523
50 M	9	24	83	240	493	740	869	824	584	303	67	12	4248
50 S	9	33	116	356	849	1589	2458	3282	3866	4169	4236	4248	4248
55 M	1	6	33	135	346	590	714	669	438	181	22	2	3139
55 S	1	7	41	176	522	1112	1826	2495	2934	3115	3137	3139	3139
60 M	0	1	9	61	215	442	559	514	299	87	4	0	2191
60 S	0	1	10	71	286	728	1287	1801	2100	2187	2191	2191	2191

Corn Growing Degree Days
50 M	103	132	232	348	500	665	769	742	563	385	197	107	4744
50 S	103	235	467	816	1316	1980	2750	3491	4055	4440	4637	4744	4744

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