GRAND JUNCTION WALKER FLD, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(053488) GRAND JUNCTION WALKER
From Year=1900 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 3 26 153 372 679 963 1194 1109 805 442 85 5 5835
40 S 3 29 181 553 1232 2195 3389 4498 5302 5745 5830 5835 5835
45 M 0 5 68 241 525 813 1039 954 655 299 29 1 4629
45 S 0 5 73 314 839 1652 2691 3645 4300 4599 4628 4629 4629
50 M 0 1 22 134 377 664 884 799 506 175 6 0 3568
50 S 0 1 23 157 534 1198 2081 2880 3386 3561 3568 3568 3568
55 M 0 0 5 60 243 515 729 644 362 81 1 0 2638
55 S 0 0 5 65 308 822 1551 2195 2557 2638 2638 2638 2638
60 M 0 0 0 19 132 370 574 489 227 27 0 0 1837
60 S 0 0 0 19 151 520 1094 1583 1810 1837 1837 1837 1837
Corn Growing Degree Days
50 M 3 22 109 235 423 613 770 726 514 277 66 5 3763
50 S 3 25 134 369 792 1405 2175 2902 3416 3692 3759 3763 3763
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