SENECA, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(357675) SENECA
From Year=1908 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 1 2 15 80 223 398 615 552 309 111 18 2 2326
40 S 1 3 18 98 321 719 1334 1887 2195 2307 2324 2326 2326
45 M 0 0 2 28 117 258 461 399 183 41 3 0 1492
45 S 0 0 2 30 147 406 866 1265 1448 1489 1492 1492 1492
50 M 0 0 0 6 49 141 311 251 86 9 0 0 855
50 S 0 0 0 7 56 197 508 759 845 854 855 855 855
55 M 0 0 0 1 16 61 175 124 28 1 0 0 405
55 S 0 0 0 1 17 77 252 376 404 405 405 405 405
60 M 0 0 0 0 4 18 72 42 6 0 0 0 142
60 S 0 0 0 0 4 22 94 136 142 142 142 142 142
Corn Growing Degree Days
50 M 1 5 27 89 190 308 473 461 335 181 33 2 2104
50 S 1 5 33 122 312 620 1093 1553 1888 2069 2103 2104 2104
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