VERNONIA, OREGON

Period of Record General Climate Summary - Heating Degree Days

Station:(358879) VERNONIA
From Year=1893 To Year=1967
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 872 698 695 515 375 246 131 125 195 435 672 807 5766
60 717 557 540 367 232 121 40 34 85 284 522 652 4151
57 624 472 448 281 155 63 12 11 41 199 432 559 3296
55 562 416 387 225 110 35 4 4 22 149 372 497 2784
50 407 276 240 104 33 4 0 0 3 56 227 343 1693
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