SITKUM, OREGON

Period of Record General Climate Summary - Heating Degree Days

Station:(357866) SITKUM
From Year=1944 To Year=1969
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 742 575 601 459 324 185 86 78 146 334 537 661 4726
60 587 433 446 311 180 70 14 12 47 190 387 506 3184
57 494 349 354 227 107 29 2 2 18 117 299 413 2409
55 432 294 294 174 68 13 0 0 8 78 241 351 1954
50 280 165 154 66 14 1 0 0 1 20 116 205 1023
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