SUNDOWN RANCH, OREGON

Period of Record General Climate Summary - Heating Degree Days

Station:(358221) SUNDOWN RANCH
From Year=1931 To Year=1955
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 911 761 782 613 474 341 191 178 252 444 638 805 6390
60 756 620 628 465 330 208 81 73 138 302 489 650 4739
57 663 535 536 379 249 139 37 32 85 225 402 557 3839
55 601 479 475 323 200 99 19 16 57 178 346 495 3288
50 449 343 329 196 95 28 2 1 15 84 215 342 2099
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