PYRAMID, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(056797) PYRAMID
From Year=1910 To Year=2005
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 1 0 1 23 186 370 570 520 314 103 5 0 2094
40 S 1 1 2 26 212 582 1153 1672 1986 2089 2093 2094 2094
45 M 0 0 0 5 83 233 416 365 181 36 0 0 1318
45 S 0 0 0 5 88 320 736 1101 1282 1318 1318 1318 1318
50 M 0 0 0 0 25 116 263 213 72 5 0 0 694
50 S 0 0 0 0 25 142 404 617 689 694 694 694 694
55 M 0 0 0 0 2 38 117 80 16 0 0 0 252
55 S 0 0 0 0 2 40 157 237 252 252 252 252 252
60 M 0 0 0 0 0 5 23 14 1 0 0 0 42
60 S 0 0 0 0 0 5 28 41 42 42 42 42 42
Corn Growing Degree Days
50 M 2 2 3 36 154 270 372 346 238 107 11 1 1541
50 S 2 3 7 43 197 466 838 1184 1421 1529 1540 1541 1541
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