FOSTER DAM, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(353047) FOSTER DAM
From Year=1969 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 93 124 205 294 466 605 796 792 632 407 183 91 4687
40 S 93 217 422 716 1181 1787 2582 3375 4006 4413 4596 4687 4687
45 M 29 43 86 157 311 455 641 637 482 256 79 28 3204
45 S 29 72 157 314 625 1080 1721 2358 2840 3096 3175 3204 3204
50 M 4 8 24 64 171 306 486 482 332 125 22 5 2029
50 S 4 12 35 100 271 577 1063 1545 1877 2003 2024 2029 2029
55 M 0 1 3 20 75 168 331 327 191 43 3 0 1164
55 S 0 1 4 24 100 268 599 926 1117 1160 1163 1164 1164
60 M 0 0 0 4 27 71 185 179 83 10 0 0 560
60 S 0 0 0 5 31 102 288 467 550 560 560 560 560
Corn Growing Degree Days
50 M 27 54 103 156 260 346 487 490 389 231 69 23 2637
50 S 27 81 184 341 601 948 1435 1925 2314 2545 2614 2637 2637
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