BELLINGHAM FCWOS AP, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(450574) BELLINGHAM FCWOS AP
From Year=1949 To Year=2005
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 62 76 132 246 427 558 689 691 526 317 138 73 3933
40 S 62 138 270 516 943 1500 2190 2880 3406 3723 3860 3933 3933
45 M 17 20 38 110 272 408 534 536 376 172 52 20 2554
45 S 17 36 74 184 455 863 1398 1933 2309 2481 2533 2554 2554
50 M 2 3 5 30 129 258 379 381 228 64 11 2 1493
50 S 2 5 10 40 169 427 806 1187 1415 1480 1490 1493 1493
55 M 0 0 0 4 39 117 225 226 97 12 1 0 722
55 S 0 0 0 5 43 161 386 612 709 721 722 722 722
60 M 0 0 0 0 7 31 89 87 22 1 0 0 237
60 S 0 0 0 0 8 39 127 214 236 237 237 237 237
Corn Growing Degree Days
50 M 12 20 43 100 195 278 386 390 274 135 34 12 1881
50 S 12 32 75 175 370 648 1035 1425 1699 1834 1868 1881 1881
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