IGNACIO 1 N, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(054250) IGNACIO 1 N
From Year=1909 To Year=1993
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 3 36 169 402 654 877 813 559 257 27 0 3796
40 S 0 3 39 207 609 1263 2141 2953 3512 3769 3796 3796 3796
45 M 0 0 6 70 254 504 722 658 410 132 4 0 2761
45 S 0 0 6 76 331 835 1558 2215 2625 2758 2761 2761 2761
50 M 0 0 0 18 126 356 567 503 264 46 0 0 1880
50 S 0 0 0 18 144 500 1067 1570 1834 1880 1880 1880 1880
55 M 0 0 0 2 40 214 412 348 135 8 0 0 1159
55 S 0 0 0 2 42 256 669 1017 1151 1159 1159 1159 1159
60 M 0 0 0 0 6 98 258 196 44 1 0 0 603
60 S 0 0 0 0 6 104 362 558 602 603 603 603 603
Corn Growing Degree Days
50 M 4 15 73 188 337 475 561 533 410 252 74 11 2934
50 S 4 19 93 281 618 1093 1654 2187 2598 2849 2923 2934 2934
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