DALHART MUNI AP, TEXAS

Period of Record General Climate Summary - Growing Degree Days

Station:(412240) DALHART FAA AIRPORT
From Year=1948 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	53	88	221	441	739	1003	1161	1105	835	518	182	58	6403
40 S	53	141	361	802	1541	2544	3705	4811	5645	6163	6345	6403	6403
45 M	17	36	123	305	586	853	1006	950	685	372	95	19	5047
45 S	17	54	176	482	1067	1920	2926	3876	4561	4933	5028	5047	5047
50 M	3	11	56	186	435	703	851	795	537	239	37	5	3856
50 S	3	14	70	256	691	1394	2244	3040	3576	3815	3852	3856	3856
55 M	0	2	19	93	292	553	696	640	392	130	9	1	2827
55 S	0	2	21	114	406	960	1656	2296	2688	2818	2827	2827	2827
60 M	0	0	4	35	168	406	541	485	255	55	1	0	1951
60 S	0	0	4	39	207	613	1154	1639	1895	1950	1951	1951	1951

Corn Growing Degree Days
50 M	82	105	198	308	461	637	752	720	529	347	167	83	4389
50 S	82	187	385	692	1153	1791	2543	3263	3792	4139	4306	4389	4389

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