GRANGEVILLE 11 SE, IDAHO

Period of Record General Climate Summary - Growing Degree Days

Station:(103780) GRANGEVILLE 11 SE
From Year=1964 To Year=1989
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 5 29 93 226 442 649 862 850 552 273 48 8 4037
40 S 5 34 128 354 796 1445 2307 3156 3708 3981 4029 4037 4037
45 M 1 5 30 114 293 499 707 695 404 145 11 1 2905
45 S 1 5 35 149 443 942 1649 2344 2747 2892 2904 2905 2905
50 M 0 0 7 47 166 350 552 540 265 59 2 0 1988
50 S 0 0 7 54 220 570 1123 1662 1927 1987 1988 1988 1988
55 M 0 0 1 14 77 212 398 385 149 17 0 0 1254
55 S 0 0 1 15 92 304 702 1087 1236 1254 1254 1254 1254
60 M 0 0 0 4 27 105 249 238 65 2 0 0 689
60 S 0 0 0 4 30 135 384 622 687 689 689 689 689
Corn Growing Degree Days
50 M 2 23 74 158 281 398 535 524 359 194 25 4 2577
50 S 2 26 99 257 538 936 1471 1995 2355 2548 2573 2577 2577
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