WINCHESTER 3 W F STN, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(359464) WINCHESTER 3 W F STN
From Year=1981 To Year=1989
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 87 126 239 353 497 676 820 855 637 445 193 82 5010
40 S 87 213 451 805 1302 1978 2798 3653 4290 4736 4928 5010 5010
45 M 24 48 107 213 343 526 665 700 487 293 87 23 3516
45 S 24 72 179 392 735 1261 1926 2626 3113 3406 3493 3516 3516
50 M 2 11 31 107 202 376 510 545 338 155 23 3 2304
50 S 2 13 45 151 353 730 1240 1784 2122 2277 2301 2304 2304
55 M 0 1 6 43 101 234 356 390 199 58 3 0 1390
55 S 0 1 7 50 151 385 741 1130 1329 1387 1390 1390 1390
60 M 0 0 1 12 44 123 209 236 97 16 0 0 737
60 S 0 0 1 12 56 179 388 624 721 737 737 737 737
Corn Growing Degree Days
50 M 37 65 133 214 296 406 501 531 401 268 83 27 2963
50 S 37 101 235 449 746 1152 1653 2184 2585 2853 2936 2963 2963
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