TILLAMOOK 1 W, OREGON

Period of Record General Climate Summary - Heating Degree Days

Station:(358494) TILLAMOOK 1 W
From Year=1948 To Year=2012
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 687 573 597 511 403 275 204 186 232 392 538 668 5266
60 532 432 442 362 252 133 72 59 102 241 388 513 3528
57 439 348 350 273 166 65 25 20 48 158 299 420 2611
55 377 292 289 216 115 34 10 7 25 111 241 358 2076
50 230 162 148 89 28 3 0 0 2 32 117 212 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