VERNONIA 2, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(358884) VERNONIA 2
From Year=1967 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 39 60 123 202 366 503 662 670 522 298 104 36 3584
40 S 39 99 222 423 789 1292 1954 2624 3147 3444 3548 3584 3584
45 M 7 13 40 91 218 353 507 515 373 157 32 7 2313
45 S 7 20 60 151 370 723 1230 1745 2117 2274 2306 2313 2313
50 M 0 1 7 32 104 208 352 360 227 59 5 0 1356
50 S 0 2 9 41 145 353 705 1065 1291 1350 1355 1356 1356
55 M 0 0 0 8 41 95 203 209 105 15 0 0 676
55 S 0 0 0 8 49 144 347 556 661 676 676 676 676
60 M 0 0 0 1 12 33 90 91 33 2 0 0 262
60 S 0 0 0 1 13 46 135 227 260 262 262 262 262
Corn Growing Degree Days
50 M 9 35 73 122 217 289 401 414 337 184 41 7 2129
50 S 9 44 117 239 456 745 1146 1560 1897 2081 2123 2129 2129
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