PARKDALE 2 NNE, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(356466) PARKDALE 2 NNE
From Year=1981 To Year=2012
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 22 30 103 213 408 566 765 759 556 290 75 13 3799
40 S 22 52 154 368 776 1342 2106 2865 3422 3712 3787 3799 3799
45 M 4 6 29 103 260 416 610 604 408 159 23 2 2624
45 S 4 11 40 143 403 819 1428 2032 2440 2599 2622 2624 2624
50 M 0 1 6 39 139 269 455 449 265 65 5 0 1693
50 S 0 1 8 46 185 455 909 1358 1624 1688 1693 1693 1693
55 M 0 0 1 11 62 146 303 297 144 19 1 0 982
55 S 0 0 1 12 74 219 522 818 962 981 982 982 982
60 M 0 0 0 2 22 63 168 162 59 4 0 0 480
60 S 0 0 0 2 24 87 255 417 476 480 480 480 480
Corn Growing Degree Days
50 M 10 17 67 137 252 345 476 479 367 191 31 5 2376
50 S 10 27 94 231 483 828 1304 1783 2150 2341 2372 2376 2376
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