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Period of Record General Climate Summary - Growing Degree Days

Station:(471568) CHILTON SEWAGE PLANT
From Year=1894 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 42 199 508 789 959 904 641 321 64 4 4433
40 S 1 2 44 243 751 1540 2499 3403 4044 4365 4429 4433 4433
45 M 0 0 20 114 362 639 804 749 492 202 27 1 3411
45 S 0 0 21 135 497 1136 1940 2689 3181 3383 3410 3411 3411
50 M 0 0 9 59 234 490 649 594 349 112 9 0 2505
50 S 0 0 9 68 302 792 1440 2035 2384 2496 2505 2505 2505
55 M 0 0 3 27 133 345 494 439 222 53 3 0 1719
55 S 0 0 3 30 163 509 1002 1442 1664 1716 1719 1719 1719
60 M 0 0 1 10 64 215 340 289 123 20 0 0 1063
60 S 0 0 1 12 76 291 631 920 1043 1063 1063 1063 1063
Corn Growing Degree Days
50 M 0 1 26 126 308 503 636 591 389 181 32 2 2796
50 S 0 1 27 153 462 965 1600 2191 2580 2762 2794 2796 2796
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