WATERDALE, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(058839) WATERDALE
From Year=1902 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 20 26 94 231 469 720 935 886 614 318 87 23 4423
40 S 20 47 140 371 841 1561 2495 3381 3995 4313 4400 4423 4423
45 M 5 7 39 128 324 570 780 731 468 194 34 6 3285
45 S 5 12 52 179 503 1074 1854 2584 3052 3246 3280 3285 3285
50 M 1 1 13 55 194 422 625 576 327 96 9 1 2320
50 S 1 2 15 71 265 687 1312 1887 2214 2310 2319 2320 2320
55 M 0 0 3 17 93 280 470 421 199 35 1 0 1520
55 S 0 0 3 20 113 393 863 1284 1483 1518 1519 1520 1520
60 M 0 0 0 3 32 155 317 269 96 8 0 0 880
60 S 0 0 0 3 35 190 507 776 871 880 880 880 880
Corn Growing Degree Days
50 M 33 41 100 188 312 452 585 559 406 251 99 37 3065
50 S 33 75 175 363 675 1127 1712 2272 2678 2929 3027 3065 3065
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