ROSEBURG KQEN, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(357331) ROSEBURG KQEN
From Year=1965 To Year=2006
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 123 163 265 354 555 718 921 932 740 490 231 114 5606
40 S 123 286 551 905 1460 2178 3099 4031 4771 5261 5492 5606 5606
45 M 44 66 133 210 400 568 766 777 590 336 112 39 4042
45 S 44 110 243 453 854 1422 2188 2965 3555 3891 4003 4042 4042
50 M 10 19 48 99 252 418 611 622 440 194 38 9 2760
50 S 10 28 77 176 428 846 1457 2079 2519 2713 2751 2760 2760
55 M 1 3 10 36 131 271 456 467 293 86 8 1 1765
55 S 1 4 15 51 182 453 909 1376 1670 1756 1764 1765 1765
60 M 0 0 1 9 56 144 303 313 162 28 1 0 1017
60 S 0 0 1 11 66 210 513 826 988 1016 1017 1017 1017
Corn Growing Degree Days
50 M 42 76 143 204 325 428 572 578 453 283 92 35 3231
50 S 42 118 262 465 791 1219 1791 2369 2822 3104 3197 3231 3231
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 Jul 28, 2006
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