MESA, IDAHO

Period of Record General Climate Summary - Cooling Degree Days

Station:(105859) MESA
From Year=1910 To Year=1955
Cooling Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
55	0	0	0	21	133	229	584	533	233	43	0	0	1776
57	0	0	0	12	96	181	523	472	187	27	0	0	1498
60	0	0	0	4	54	120	431	382	130	13	0	0	1134
65	0	0	0	0	19	50	283	240	60	1	0	0	654
70	0	0	0	0	4	15	151	117	21	0	0	0	309

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