HARNEY BRANCH EXPERIMEN, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(353659) HARNEY BRANCH EXPERIMEN
From Year=1922 To Year=1954
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 0 3 38 172 365 524 818 736 455 198 22 5 3336
40 S 0 3 42 214 578 1103 1921 2657 3111 3310 3331 3336 3336
45 M 0 0 9 80 227 376 663 581 314 95 4 1 2350
45 S 0 0 9 88 316 692 1355 1936 2250 2345 2349 2350 2350
50 M 0 0 1 26 119 238 508 427 188 32 0 0 1538
50 S 0 0 1 27 146 384 891 1318 1506 1538 1538 1538 1538
55 M 0 0 0 5 48 128 354 278 91 7 0 0 910
55 S 0 0 0 5 53 181 535 812 904 910 910 910 910
60 M 0 0 0 0 14 54 208 144 33 1 0 0 453
60 S 0 0 0 0 14 68 276 420 453 453 453 453 453
Corn Growing Degree Days
50 M 1 5 46 167 289 373 542 517 380 217 38 3 2579
50 S 1 5 52 219 509 882 1423 1941 2321 2538 2576 2579 2579
M = Monthly Data
S - Running sum of monthly data.
Growing Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. This is done for each day of the month and summed.
Corn Growing Degree Day units have the limitations that the maximum daily temperatures greater than 86 F are set to 86 F and minimums less than 50 F are set to 50 F.
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