TRINIDAD PERRY STOKES AP, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(058434) TRINIDAD FAA ARPT
From Year=1948 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 36 56 147 323 596 870 1053 990 737 427 138 42 5414
40 S 36 92 239 562 1157 2027 3080 4070 4806 5234 5371 5414 5414
45 M 10 19 71 204 445 720 898 835 588 290 65 13 4160
45 S 10 30 101 305 751 1471 2368 3203 3792 4082 4147 4160 4160
50 M 2 4 26 110 303 570 743 680 443 172 22 2 3077
50 S 2 6 33 142 445 1016 1758 2438 2881 3053 3075 3077 3077
55 M 0 1 6 46 178 423 588 525 302 82 4 0 2156
55 S 0 1 7 52 231 654 1241 1766 2069 2151 2155 2156 2156
60 M 0 0 1 13 83 281 433 371 175 28 0 0 1385
60 S 0 0 1 13 96 377 811 1181 1356 1384 1385 1385 1385
Corn Growing Degree Days
50 M 58 77 151 246 387 548 675 638 471 310 138 63 3763
50 S 58 135 286 532 919 1467 2143 2780 3251 3561 3699 3763 3763
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