P RANCH REFUGE, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(356853) P RANCH REFUGE
From Year=1897 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 21 39 85 191 409 598 820 775 531 282 78 27 3856
40 S 21 60 145 336 745 1343 2163 2939 3469 3752 3829 3856 3856
45 M 4 9 30 97 267 449 665 620 384 161 30 7 2725
45 S 4 13 43 141 408 857 1522 2142 2527 2688 2718 2725 2725
50 M 0 1 7 41 150 304 510 466 249 73 8 1 1811
50 S 0 2 8 49 200 504 1014 1480 1729 1802 1810 1811 1811
55 M 0 0 1 12 68 179 357 315 133 24 1 0 1088
55 S 0 0 1 12 80 259 616 930 1063 1087 1088 1088 1088
60 M 0 0 0 2 23 83 212 178 50 5 0 0 553
60 S 0 0 0 2 25 108 321 498 548 553 553 553 553
Corn Growing Degree Days
50 M 11 31 81 166 286 395 536 520 413 261 69 15 2786
50 S 11 43 124 290 576 971 1508 2028 2441 2703 2772 2786 2786
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