COLD BAY AP, ALASKA

Period of Record General Climate Summary - Heating Degree Days

Station:(502102) COLD BAY WB AIRPORT
From Year=1950 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	1143	1039	1108	947	780	576	450	415	520	775	918	1079	9750
60	988	898	953	797	625	426	295	260	371	620	768	924	7925
57	895	813	860	707	532	336	203	170	281	527	678	831	6832
55	833	757	798	647	470	276	144	113	221	465	618	769	6110
50	678	615	643	497	315	131	30	17	87	311	468	614	4406

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