MIDWAY SAND ISLAND, PACIFIC OCEAN

Period of Record General Climate Summary - Cooling Degree Days

Station:(914490) MIDWAY SAND ISLAND
From Year=1953 To Year=1991
Cooling Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
55	345	298	353	386	507	652	730	763	729	657	514	411	6343
57	283	241	291	326	445	592	668	701	669	595	454	349	5613
60	191	157	199	236	352	502	575	608	579	502	364	256	4520
65	61	44	66	97	198	352	420	453	429	347	215	111	2794
70	6	3	6	18	65	203	265	298	279	193	82	19	1437

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