GREENCREEK 3 N, IDAHO

Period of Record General Climate Summary - Growing Degree Days

Station:(103835) GREENCREEK 3 N
From Year=1964 To Year=1972
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 7 16 41 105 351 531 785 813 472 203 39 5 3369
40 S 7 23 64 169 520 1051 1836 2650 3122 3325 3364 3369 3369
45 M 2 1 12 41 214 381 630 658 332 106 8 0 2385
45 S 2 3 15 55 270 651 1281 1939 2271 2377 2385 2385 2385
50 M 0 0 2 10 108 237 475 504 208 44 1 0 1588
50 S 0 0 2 12 120 357 832 1336 1544 1587 1588 1588 1588
55 M 0 0 0 1 38 122 323 353 108 12 0 0 958
55 S 0 0 0 1 40 161 485 837 946 958 958 958 958
60 M 0 0 0 0 7 49 189 215 45 2 0 0 507
60 S 0 0 0 0 7 56 245 460 505 507 507 507 507
Corn Growing Degree Days
50 M 2 8 29 77 231 321 501 510 303 133 18 1 2135
50 S 2 10 40 117 348 669 1170 1680 1983 2116 2134 2135 2135
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