VANCOUVER 4 NNE, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(458773) VANCOUVER 4 NNE
From Year=1898 To Year=2006
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 66 100 204 332 512 647 815 814 647 421 177 78 4812
40 S 66 165 370 702 1214 1860 2676 3490 4136 4557 4734 4812 4812
45 M 18 29 86 191 357 497 660 659 497 270 73 22 3359
45 S 18 47 133 324 682 1178 1839 2498 2994 3264 3337 3359 3359
50 M 2 5 24 84 211 347 505 504 347 138 17 4 2188
50 S 2 7 31 115 326 673 1178 1682 2030 2167 2184 2188 2188
55 M 0 0 4 27 97 203 351 349 205 49 2 0 1287
55 S 0 0 4 31 129 332 682 1032 1236 1285 1287 1287 1287
60 M 0 0 0 6 34 89 202 201 91 10 0 0 634
60 S 0 0 0 6 40 129 332 533 624 634 634 634 634
Corn Growing Degree Days
50 M 13 36 95 174 277 367 499 501 383 220 59 14 2636
50 S 13 49 144 318 595 961 1460 1961 2343 2563 2622 2636 2636
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 Jul 28, 2006
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