HART, TEXAS

Period of Record General Climate Summary - Growing Degree Days

Station:(413972) HART
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	70	115	287	500	806	1033	1140	1101	850	565	229	74	6770
40 S	70	184	472	972	1778	2811	3951	5052	5902	6467	6696	6770	6770
45 M	24	53	174	360	651	883	985	946	701	417	130	27	5351
45 S	24	77	251	611	1262	2146	3131	4076	4777	5194	5324	5351	5351
50 M	5	17	89	234	499	733	830	791	552	278	59	7	4094
50 S	5	22	111	345	844	1577	2407	3198	3750	4028	4088	4094	4094
55 M	0	2	35	132	353	583	675	636	405	157	20	1	2999
55 S	0	3	38	170	522	1106	1781	2416	2822	2979	2999	2999	2999
60 M	0	0	10	57	221	434	520	481	265	68	3	0	2060
60 S	0	0	10	67	288	722	1242	1722	1988	2056	2060	2060	2060

Corn Growing Degree Days
50 M	101	132	239	346	498	662	749	722	541	373	195	95	4653
50 S	101	233	473	818	1316	1978	2727	3449	3990	4364	4559	4653	4653

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