KOOSKIA 5 SSE, IDAHO

Period of Record General Climate Summary - Growing Degree Days

Station:(105013) KOOSKIA 5 SSE
From Year=1989 To Year=2006
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 19 108 243 457 623 906 919 643 282 40 4 4248
40 S 3 22 130 373 830 1453 2360 3279 3922 4204 4244 4248 4248
45 M 0 2 36 128 309 474 751 764 494 157 10 0 3126
45 S 0 2 39 166 475 950 1701 2465 2959 3116 3126 3126 3126
50 M 0 0 7 55 181 329 596 609 348 72 2 0 2201
50 S 0 0 7 62 243 573 1169 1778 2127 2199 2201 2201 2201
55 M 0 0 1 17 86 196 442 456 216 27 0 0 1441
55 S 0 0 1 17 103 299 741 1198 1414 1440 1441 1441 1441
60 M 0 0 0 3 31 93 295 309 112 7 0 0 849
60 S 0 0 0 3 34 127 421 731 842 849 849 849 849
Corn Growing Degree Days
50 M 1 13 74 149 261 364 561 567 405 179 18 1 2594
50 S 1 15 89 238 499 863 1424 1992 2397 2576 2593 2594 2594
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