HOMEDALE 1 SE, IDAHO

Period of Record General Climate Summary - Growing Degree Days

Station:(104318) HOMEDALE 1 SE
From Year=1990 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 9 29 149 305 563 766 1029 998 715 318 63 7 4953
40 S 9 38 187 492 1055 1822 2851 3849 4565 4882 4946 4953 4953
45 M 1 7 62 176 410 616 874 843 565 188 16 3 3761
45 S 1 8 69 245 655 1271 2145 2989 3554 3742 3758 3761 3761
50 M 0 0 17 85 266 467 719 688 416 93 1 0 2752
50 S 0 0 17 102 368 835 1554 2242 2658 2751 2752 2752 2752
55 M 0 0 2 33 149 322 564 534 274 40 0 0 1917
55 S 0 0 2 35 184 506 1070 1604 1877 1917 1917 1917 1917
60 M 0 0 0 9 69 193 409 383 150 12 0 0 1225
60 S 0 0 0 9 78 270 680 1063 1213 1225 1225 1225 1225
Corn Growing Degree Days
50 M 5 31 134 228 363 479 622 603 481 270 52 4 3272
50 S 5 36 170 397 761 1240 1862 2464 2945 3216 3268 3272 3272
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