LONGMONT 2 ESE, COLORADO

Period of Record General Climate Summary - Heating Degree Days

Station:(055116) LONGMONT 2 ESE
From Year=1893 To Year=2004
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1174	962	842	537	271	70	9	14	159	476	841	1121	6476
60	1019	821	688	391	156	26	2	3	81	327	691	966	5171
57	926	736	595	309	105	13	1	1	52	247	601	873	4461
55	864	680	535	260	79	8	0	0	37	201	542	811	4018
50	710	540	390	157	34	2	0	0	16	110	398	657	3014

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