NEZPERCE, IDAHO

Period of Record General Climate Summary - Growing Degree Days

Station:(106424) NEZPERCE
From Year=1901 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 5 14 49 149 347 526 763 762 502 215 35 5 3374
40 S 5 19 69 217 565 1091 1854 2617 3119 3334 3369 3374 3374
45 M 0 2 13 67 212 378 608 607 356 110 8 1 2363
45 S 0 2 15 82 294 672 1281 1888 2244 2354 2363 2363 2363
50 M 0 0 2 24 109 238 454 453 225 44 1 0 1551
50 S 0 0 2 26 135 373 827 1280 1505 1550 1551 1551 1551
55 M 0 0 0 6 46 125 303 303 119 13 0 0 916
55 S 0 0 0 6 52 177 480 783 903 916 916 916 916
60 M 0 0 0 1 15 51 169 171 48 2 0 0 457
60 S 0 0 0 1 16 66 235 406 455 457 457 457 457
Corn Growing Degree Days
50 M 1 8 34 98 210 313 483 481 324 138 14 1 2105
50 S 1 9 42 140 350 663 1146 1627 1951 2090 2104 2105 2105
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