VIEQUES ISLAND, PUERTO RICO

Period of Record General Climate Summary - Cooling Degree Days

Station:(669763) VIEQUES ISLAND
From Year=1955 To Year=1976
Cooling Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
55	645	590	673	684	756	767	793	797	771	777	712	673	8639
57	583	534	611	624	694	707	731	735	711	715	652	611	7908
60	490	449	518	534	601	617	638	642	621	622	562	518	6812
65	335	307	363	384	446	467	483	487	471	467	412	363	4986
70	180	166	208	234	291	317	328	332	321	312	262	208	3160

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 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