CRAIG 4 SW, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(051932) CRAIG 4 SW
From Year=1977 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 0 1 31 151 351 629 859 804 511 210 29 1 3578
40 S 0 1 32 183 534 1164 2023 2827 3338 3549 3578 3578 3578
45 M 0 0 9 71 221 481 704 649 368 105 7 0 2615
45 S 0 0 9 80 301 781 1485 2135 2503 2608 2615 2615 2615
50 M 0 0 1 24 115 336 549 495 233 39 1 0 1794
50 S 0 0 1 26 141 477 1026 1521 1754 1793 1794 1794 1794
55 M 0 0 0 4 43 202 395 341 117 9 0 0 1111
55 S 0 0 0 4 47 250 645 986 1103 1111 1111 1111 1111
60 M 0 0 0 0 8 93 243 194 39 0 0 0 579
60 S 0 0 0 0 8 102 345 539 578 579 579 579 579
Corn Growing Degree Days
50 M 0 2 38 132 248 416 546 517 361 188 39 1 2487
50 S 0 2 40 172 420 837 1382 1899 2260 2447 2486 2487 2487
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