O O RANCH, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(356302) O O RANCH
From Year=1941 To Year=2011
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 12 19 78 172 381 575 838 773 501 240 46 11 3647
40 S 12 31 109 281 662 1237 2075 2848 3349 3589 3636 3647 3647
45 M 2 3 23 81 241 427 683 618 355 122 12 2 2568
45 S 2 6 29 110 350 777 1460 2077 2432 2554 2566 2568 2568
50 M 0 0 3 28 130 284 528 463 220 45 2 0 1704
50 S 0 1 4 32 162 446 974 1437 1657 1703 1704 1704 1704
55 M 0 0 0 6 57 160 374 312 107 11 0 0 1028
55 S 0 0 0 7 64 223 598 910 1017 1028 1028 1028 1028
60 M 0 0 0 1 19 70 228 173 36 1 0 0 526
60 S 0 0 0 1 19 89 317 489 525 526 526 526 526
Corn Growing Degree Days
50 M 5 17 74 149 282 395 540 518 397 234 46 7 2665
50 S 5 22 96 245 528 923 1463 1981 2378 2612 2657 2665 2665
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