COTTAGE GROVE 1 S, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(351897) COTTAGE GROVE 1 S
From Year=1916 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 87 118 193 291 462 604 780 778 616 410 185 95 4620
40 S 87 205 398 690 1152 1756 2536 3314 3930 4339 4524 4620 4620
45 M 27 41 80 156 308 454 625 623 466 259 81 32 3152
45 S 27 69 148 304 612 1065 1691 2313 2779 3039 3120 3152 3152
50 M 5 9 21 60 167 304 470 468 317 129 23 7 1981
50 S 5 14 35 96 263 567 1038 1505 1822 1951 1974 1981 1981
55 M 0 1 3 15 68 164 316 313 178 43 3 1 1105
55 S 0 1 4 20 87 252 568 881 1058 1101 1105 1105 1105
60 M 0 0 0 2 20 64 169 166 71 8 0 0 499
60 S 0 0 0 2 22 86 254 420 491 499 499 499 499
Corn Growing Degree Days
50 M 29 55 107 173 277 365 496 498 394 235 74 29 2731
50 S 29 84 191 364 641 1005 1501 1999 2393 2628 2702 2731 2731
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