HAPPY, TEXAS

Period of Record General Climate Summary - Growing Degree Days

Station:(413922) HAPPY
From Year=1894 To Year=1947
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	95	150	330	561	787	1047	1129	1137	901	620	266	99	7122
40 S	95	245	575	1136	1923	2969	4099	5236	6137	6757	7023	7122	7122
45 M	43	78	214	417	632	897	974	982	753	468	156	43	5655
45 S	43	120	334	751	1383	2279	3254	4236	4989	5456	5612	5655	5655
50 M	13	31	124	280	478	747	819	827	605	322	75	14	4335
50 S	13	44	168	448	926	1672	2492	3319	3924	4246	4321	4335	4335
55 M	3	11	59	161	330	597	664	672	460	194	30	3	3183
55 S	3	13	73	233	563	1160	1824	2496	2956	3150	3179	3183	3183
60 M	0	5	24	76	204	447	509	517	316	89	9	1	2199
60 S	0	5	30	105	310	756	1266	1783	2099	2188	2197	2199	2199

Corn Growing Degree Days
50 M	101	141	267	391	507	666	736	735	575	404	213	111	4847
50 S	101	242	509	900	1407	2073	2809	3544	4119	4524	4736	4847	4847

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