PENDLETON E OR RGNL AP, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(356546) PENDLETON WSO AIRPORT
From Year=1928 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 45 66 170 325 566 757 1023 980 707 386 112 53 5192
40 S 45 111 281 606 1172 1930 2953 3933 4640 5026 5138 5192 5192
45 M 14 21 70 188 412 607 868 825 557 244 43 17 3866
45 S 14 35 105 293 704 1311 2180 3004 3562 3806 3849 3866 3866
50 M 3 5 21 87 264 457 713 670 409 126 12 4 2771
50 S 3 8 29 115 379 837 1550 2220 2629 2755 2767 2771 2771
55 M 0 1 4 32 144 311 558 515 268 51 2 1 1887
55 S 0 1 5 37 181 492 1050 1565 1833 1884 1886 1887 1887
60 M 0 0 0 9 66 180 404 361 147 15 0 0 1183
60 S 0 0 1 9 75 255 659 1020 1167 1183 1183 1183 1183
Corn Growing Degree Days
50 M 18 29 91 186 331 459 641 617 435 222 48 20 3097
50 S 18 47 138 324 656 1115 1756 2372 2807 3029 3077 3097 3097
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