NASELLE, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(455774) NASELLE
From Year=1929 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
65 863 684 671 552 454 287 168 89 152 438 731 830 5916
60 708 541 516 402 300 146 44 13 59 283 581 675 4265
57 615 456 423 313 211 74 8 0 22 190 491 582 3381
55 553 399 361 256 154 36 2 0 6 137 431 520 2851
50 399 256 206 124 41 2 0 0 0 47 281 365 1719
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