VANCOUVER 4 NNE, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(458773) VANCOUVER 4 NNE
From Year=1856 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 66 99 201 327 509 644 815 814 644 418 175 77 4789
40 S 66 165 366 693 1201 1845 2660 3474 4118 4537 4712 4789 4789
45 M 18 29 84 187 354 494 660 659 494 267 73 22 3340
45 S 18 47 131 318 672 1165 1825 2485 2979 3246 3318 3340 3340
50 M 2 5 23 82 208 344 505 504 345 135 17 4 2174
50 S 2 7 30 112 320 664 1169 1673 2018 2153 2171 2174 2174
55 M 0 0 4 26 96 200 350 350 203 47 2 0 1278
55 S 0 0 4 30 126 326 677 1026 1229 1276 1278 1278 1278
60 M 0 0 0 6 34 88 202 202 90 10 0 0 631
60 S 0 0 0 6 39 127 329 531 621 631 631 631 631
Corn Growing Degree Days
50 M 13 36 93 171 275 364 498 501 381 219 58 14 2626
50 S 13 49 142 314 589 953 1452 1953 2334 2553 2611 2626 2626
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