ROCK SPRINGS AP, WYOMING

Period of Record General Climate Summary - Heating Degree Days

Station:(487845) ROCK SPRINGS FAA AP
From Year=1948 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	1385	1162	1036	724	450	174	21	44	265	632	1036	1340	8268
60	1230	1020	881	575	304	89	4	13	150	477	886	1185	6814
57	1137	935	788	486	227	55	2	6	101	388	796	1092	6011
55	1075	879	726	428	183	38	1	3	76	331	736	1030	5505
50	920	738	571	292	95	13	0	0	36	208	586	875	4334

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