TERLINGUA RCH, TEXAS

Period of Record General Climate Summary - Heating Degree Days

Station:(418926) TERLINGUA RANCH
From Year=1993 To Year=2012
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	491	359	214	63	5	0	0	0	4	68	256	500	1961
60	341	237	116	25	1	0	0	0	1	32	143	351	1247
57	260	176	76	15	0	0	0	0	1	20	95	270	912
55	213	142	55	10	0	0	0	0	0	15	71	221	727
50	119	75	24	4	0	0	0	0	0	6	31	121	380

Heating Degree Day units are computed as the difference between the base temperature and the daily average temperature. (Base Temp. - Daily Ave. Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is below the base temperature. Negative numbers are discarded. Example: If the days high temperature was 65 and the low temperature was 31, the base 50 heating degree day units is 50 - ((65 + 31) / 2) = 2. This is done for each day of the month and summed.
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