CLARKSVILLE, VIRGINIA

Period of Record General Climate Summary - Cooling Degree Days

From Year=1891 To Year=2012
Station:(441746) CLARKSVILLE
Averages Daily Extremes
Cooling Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
55	11	7	56	168	389	647	756	728	483	185	35	7	3472
57	7	4	39	132	330	587	694	666	424	144	22	4	3052
60	3	1	21	87	248	497	601	573	337	92	9	2	2473
65	1	0	6	34	132	348	446	418	203	32	1	0	1623
70	0	0	1	8	52	208	292	267	94	7	0	0	929

Cooling 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.
Table updated on May 22,
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Southeast Regional Climate Center, SERCC Webmaster