POWDERHORN, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(056651) POWDERHORN
From Year=1964 To Year=1971
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 0 17 161 326 578 541 282 68 1 0 1975
40 S 0 0 1 18 179 505 1083 1625 1906 1974 1975 1975 1975
45 M 0 0 0 2 64 185 423 387 145 19 0 0 1224
45 S 0 0 0 2 66 251 674 1061 1205 1224 1224 1224 1224
50 M 0 0 0 0 16 76 269 240 49 4 0 0 653
50 S 0 0 0 0 16 92 361 601 649 653 653 653 653
55 M 0 0 0 0 2 20 128 114 8 1 0 0 271
55 S 0 0 0 0 2 21 149 262 271 271 271 271 271
60 M 0 0 0 0 0 1 25 28 0 0 0 0 55
60 S 0 0 0 0 0 1 27 55 55 55 55 55 55
Corn Growing Degree Days
50 M 1 0 16 88 235 329 445 412 289 167 30 0 2012
50 S 1 1 17 105 340 669 1115 1526 1815 1982 2011 2012 2012
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