DUNSMUIR TREATMENT PLAN, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(042574) DUNSMUIR TREATMENT PLAN
From Year=1978 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	776	637	584	405	214	68	10	10	74	276	599	770	4424
60	621	496	429	263	110	24	2	1	26	152	449	615	3187
57	528	412	338	188	65	11	0	0	11	94	360	522	2530
55	466	355	280	145	43	7	0	0	6	65	301	460	2128
50	312	222	151	63	10	1	0	0	1	20	170	306	1255

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