ROCK CREEK, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(357250) ROCK CREEK
From Year=1920 To Year=2010
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 0 1 37 182 410 539 831 781 499 223 14 3 3520
40 S 0 1 38 221 630 1169 2000 2781 3280 3503 3517 3520 3520
45 M 0 0 9 92 268 389 676 626 356 118 2 1 2536
45 S 0 0 9 101 369 759 1434 2060 2416 2534 2536 2536 2536
50 M 0 0 1 37 153 248 521 472 227 50 0 0 1708
50 S 0 0 1 37 190 438 959 1430 1658 1707 1708 1708 1708
55 M 0 0 0 10 71 134 367 321 125 14 0 0 1042
55 S 0 0 0 10 81 215 582 903 1028 1042 1042 1042 1042
60 M 0 0 0 2 25 61 224 185 54 2 0 0 553
60 S 0 0 0 2 27 87 312 497 551 553 553 553 553
Corn Growing Degree Days
50 M 0 0 17 104 233 308 530 491 283 102 3 0 2072
50 S 0 0 17 121 354 662 1192 1683 1967 2069 2072 2072 2072
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