TIDEWATER FISH HATCHERY, OREGON

Period of Record General Climate Summary - Heating Degree Days

Station:(358481) TIDEWATER FISH HATCHERY
From Year=1940 To Year=2002
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 689 534 534 424 305 178 77 62 108 282 509 664 4364
60 534 393 379 276 165 62 9 6 25 142 359 509 2858
57 441 309 288 193 96 21 1 1 6 78 270 416 2119
55 379 254 229 142 59 8 0 0 2 47 214 354 1690
50 232 130 103 46 10 0 0 0 0 9 97 209 837
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