THE DALLES 2, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(358410) THE DALLES 2
From Year=1967 To Year=1975
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 45 79 214 330 632 814 1019 1012 720 386 126 37 5413
40 S 45 123 338 668 1300 2114 3133 4145 4865 5250 5376 5413 5413
45 M 12 24 94 186 477 664 864 857 570 239 35 7 4028
45 S 12 35 130 315 793 1457 2321 3178 3747 3986 4021 4028 4028
50 M 1 5 28 76 326 514 709 702 422 114 4 1 2902
50 S 1 6 34 110 436 950 1659 2361 2782 2896 2900 2902 2902
55 M 0 0 4 24 195 365 554 547 280 40 0 0 2008
55 S 0 0 4 28 222 587 1141 1688 1968 2008 2008 2008 2008
60 M 0 0 0 5 96 227 401 393 155 10 0 0 1286
60 S 0 0 0 5 101 328 729 1122 1277 1286 1286 1286 1286
Corn Growing Degree Days
50 M 15 38 119 179 370 494 642 639 444 240 50 13 3242
50 S 15 53 172 351 721 1215 1857 2495 2939 3180 3230 3242 3242
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