PILOT ROCK, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(356634) PILOT ROCK
From Year=1908 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 53 62 160 305 533 725 975 939 666 370 120 56 4966
40 S 53 116 276 581 1114 1840 2815 3754 4420 4790 4910 4966 4966
45 M 18 21 67 175 380 575 820 784 517 229 49 19 3655
45 S 18 39 106 281 661 1236 2056 2841 3358 3587 3636 3655 3655
50 M 4 5 21 82 238 426 665 629 370 116 15 5 2577
50 S 4 9 30 112 351 777 1442 2071 2441 2558 2572 2577 2577
55 M 1 1 4 32 126 283 511 475 234 45 3 1 1715
55 S 1 2 6 37 164 446 957 1432 1666 1711 1714 1715 1715
60 M 0 0 0 9 55 159 358 323 124 12 0 0 1043
60 S 0 0 0 10 65 225 583 906 1031 1042 1043 1043 1043
Corn Growing Degree Days
50 M 30 38 108 202 339 451 596 580 427 249 72 30 3120
50 S 30 68 175 377 716 1167 1763 2343 2770 3019 3090 3120 3120
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