MORRO BAY FIRE DEPT, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(045866) MORRO BAY FIRE DEPT
From Year=1959 To Year=2006
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	392	329	353	324	304	236	196	170	160	184	262	389	3298
60	242	193	203	183	155	93	57	40	45	67	130	238	1646
57	158	120	124	106	76	30	9	5	9	23	68	155	882
55	109	79	79	63	36	9	1	0	1	8	38	106	531
50	28	16	14	7	2	0	0	0	0	0	4	29	100

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 Jul 28, 2006
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