GRAPEVIEW 3 SW, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(453284) GRAPEVIEW 3 SW
From Year=1907 To Year=1995
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 64 87 168 297 486 614 761 770 598 380 164 84 4475
40 S 64 151 319 617 1102 1717 2478 3248 3847 4226 4391 4475 4475
45 M 13 22 57 157 331 464 606 615 448 229 60 21 3026
45 S 13 35 92 249 580 1045 1651 2266 2714 2944 3004 3026 3026
50 M 1 2 10 56 182 315 451 460 299 101 10 2 1889
50 S 1 3 13 69 251 566 1017 1477 1776 1877 1887 1889 1889
55 M 0 0 1 13 72 170 296 305 157 26 1 0 1040
55 S 0 0 1 14 86 255 551 857 1014 1040 1040 1040 1040
60 M 0 0 0 2 19 61 148 155 52 3 0 0 440
60 S 0 0 0 2 21 82 230 385 437 440 440 440 440
Corn Growing Degree Days
50 M 7 20 70 152 266 345 455 464 336 166 36 9 2325
50 S 7 26 97 249 514 859 1314 1778 2114 2280 2316 2325 2325
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