GRACE, IDAHO

Period of Record General Climate Summary - Growing Degree Days

Station:(103732) GRACE
From Year=1907 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 1 1 19 130 345 558 827 776 488 208 23 2 3377
40 S 1 1 21 151 495 1053 1880 2656 3144 3352 3376 3377 3377
45 M 0 0 4 58 212 410 672 621 345 104 5 0 2429
45 S 0 0 4 61 273 683 1355 1976 2321 2424 2429 2429 2429
50 M 0 0 0 18 106 270 517 466 214 37 0 0 1628
50 S 0 0 0 19 124 394 911 1378 1591 1628 1628 1628 1628
55 M 0 0 0 3 39 150 363 314 106 8 0 0 983
55 S 0 0 0 3 42 192 555 870 975 983 983 983 983
60 M 0 0 0 0 9 62 215 172 35 1 0 0 493
60 S 0 0 0 0 9 71 286 458 492 493 493 493 493
Corn Growing Degree Days
50 M 0 1 20 113 247 373 537 513 358 182 28 1 2374
50 S 0 2 22 135 382 755 1292 1805 2163 2345 2373 2374 2374
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