GRANT, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(053530) GRANT
From Year=1963 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 0 8 48 201 425 605 538 317 112 9 0 2264
40 S 0 0 9 57 257 682 1287 1825 2142 2254 2263 2264 2264
45 M 0 0 1 10 93 280 450 384 182 37 1 0 1436
45 S 0 0 1 11 103 383 833 1217 1399 1435 1436 1436 1436
50 M 0 0 0 1 26 150 296 231 73 6 0 0 782
50 S 0 0 0 1 27 176 472 702 776 782 782 782 782
55 M 0 0 0 0 4 53 147 93 16 0 0 0 313
55 S 0 0 0 0 4 57 204 297 313 313 313 313 313
60 M 0 0 0 0 0 8 37 15 1 0 0 0 62
60 S 0 0 0 0 0 9 46 61 62 62 62 62 62
Corn Growing Degree Days
50 M 1 2 20 69 180 316 403 358 247 125 17 1 1740
50 S 1 2 23 91 272 588 992 1350 1597 1722 1740 1740 1740
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