CORVALLIS WATER BUREAU, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(351877) CORVALLIS WATER BUREAU
From Year=1936 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 61 82 163 257 442 588 771 779 631 376 139 60 4349
40 S 61 143 306 563 1005 1593 2364 3143 3774 4150 4289 4349 4349
45 M 16 22 60 128 289 438 616 624 481 227 49 16 2966
45 S 16 38 98 226 515 953 1569 2193 2674 2901 2950 2966 2966
50 M 2 3 14 48 155 290 461 469 332 104 10 2 1890
50 S 2 5 19 68 223 512 973 1442 1774 1878 1888 1890 1890
55 M 0 0 2 13 68 155 306 314 192 33 1 0 1085
55 S 0 0 2 15 83 238 545 859 1051 1084 1085 1085 1085
60 M 0 0 0 2 23 66 166 169 84 7 0 0 517
60 S 0 0 0 2 25 91 257 426 510 517 517 517 517
Corn Growing Degree Days
50 M 12 32 80 142 251 334 466 475 377 209 46 11 2435
50 S 12 45 125 266 517 851 1317 1792 2169 2377 2424 2435 2435
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