ASHLAND, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(350304) ASHLAND
From Year=1892 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 57 98 178 297 497 675 907 882 662 403 144 57 4857
40 S 57 155 333 630 1127 1802 2709 3591 4253 4657 4801 4857 4857
45 M 17 34 78 167 344 525 752 727 513 256 59 17 3490
45 S 17 52 130 297 641 1166 1918 2645 3158 3414 3473 3490 3490
50 M 3 8 23 76 206 376 597 572 364 133 17 4 2379
50 S 3 11 34 110 316 693 1290 1862 2226 2359 2376 2379 2379
55 M 0 1 4 25 102 234 443 417 225 52 3 0 1509
55 S 0 1 6 31 133 368 810 1228 1453 1505 1508 1509 1509
60 M 0 0 0 5 40 120 291 267 114 14 0 0 851
60 S 0 0 1 6 46 165 456 723 837 851 851 851 851
Corn Growing Degree Days
50 M 25 58 118 197 314 419 566 551 425 263 76 22 3032
50 S 25 82 200 397 711 1130 1695 2246 2671 2934 3010 3032 3032
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