PIERCE, IDAHO

Period of Record General Climate Summary - Growing Degree Days

Station:(107046) PIERCE
From Year=1963 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 0 0 12 86 296 487 701 665 371 129 11 0 2758
40 S 0 0 12 98 394 881 1582 2247 2618 2747 2758 2758 2758
45 M 0 0 2 32 174 341 546 510 234 51 1 0 1891
45 S 0 0 2 33 208 548 1094 1605 1838 1890 1891 1891 1891
50 M 0 0 0 8 88 210 393 358 124 14 0 0 1195
50 S 0 0 0 8 97 306 699 1057 1180 1195 1195 1195 1195
55 M 0 0 0 2 35 109 247 216 50 3 0 0 661
55 S 0 0 0 2 37 146 392 608 658 661 661 661 661
60 M 0 0 0 0 11 44 124 101 12 0 0 0 292
60 S 0 0 0 0 11 55 179 280 292 292 292 292 292
Corn Growing Degree Days
50 M 0 1 21 84 218 318 471 464 302 136 10 0 2026
50 S 0 1 23 106 324 642 1113 1577 1880 2016 2026 2026 2026
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 Jul 28, 2006
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