SIERRA BLANCA 2 E, TEXAS

Period of Record General Climate Summary - Heating Degree Days

Station:(418305) SIERRA BLANCA 2 E
From Year=1893 To Year=2002
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	697	524	378	153	25	0	0	0	19	152	429	661	3038
60	542	385	236	68	5	0	0	0	6	65	284	506	2098
57	449	304	164	39	2	0	0	0	3	36	206	414	1617
55	388	253	123	26	1	0	0	0	2	25	161	354	1333
50	245	141	53	9	0	0	0	0	0	9	80	216	754

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