WALLACE, IDAHO

Period of Record General Climate Summary - Growing Degree Days

Station:(109493) WALLACE
From Year=1907 To Year=1962
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 2 5 37 178 391 564 798 749 487 220 24 5 3459
40 S 2 7 43 222 612 1177 1974 2724 3211 3430 3455 3459 3459
45 M 0 1 8 84 248 415 643 594 342 111 4 0 2449
45 S 0 1 9 93 340 755 1398 1992 2334 2445 2449 2449 2449
50 M 0 0 1 31 133 271 488 440 210 41 0 0 1615
50 S 0 0 1 32 164 436 924 1363 1573 1615 1615 1615 1615
55 M 0 0 0 9 57 149 336 290 107 9 0 0 957
55 S 0 0 0 9 66 214 551 841 948 957 957 957 957
60 M 0 0 0 2 18 66 198 158 39 1 0 0 483
60 S 0 0 0 2 20 87 284 442 482 483 483 483 483
Corn Growing Degree Days
50 M 0 3 30 133 256 352 503 479 317 136 9 1 2218
50 S 0 3 33 165 422 773 1276 1755 2072 2208 2218 2218 2218
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