KUNA 2 NNE, IDAHO

Period of Record General Climate Summary - Growing Degree Days

Station:(105038) KUNA 2 NNE
From Year=1926 To Year=1996
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 11 33 124 295 538 728 973 918 618 358 76 20 4692
40 S 11 44 168 463 1001 1729 2702 3620 4237 4596 4672 4692 4692
45 M 2 8 49 171 386 578 818 763 468 221 26 6 3496
45 S 2 10 59 229 615 1193 2011 2774 3243 3464 3490 3496 3496
50 M 0 1 13 83 246 429 663 608 325 112 6 1 2487
50 S 0 1 14 97 343 772 1435 2043 2367 2480 2486 2487 2487
55 M 0 0 2 31 132 286 508 454 196 42 1 0 1652
55 S 0 0 2 33 165 451 959 1413 1609 1651 1652 1652 1652
60 M 0 0 0 8 57 162 355 305 95 10 0 0 992
60 S 0 0 0 8 65 228 583 888 982 992 992 992 992
Corn Growing Degree Days
50 M 3 22 99 218 354 457 605 576 413 261 51 7 3068
50 S 3 26 125 343 697 1154 1759 2335 2748 3010 3061 3068 3068
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