HECLA 1E, WYOMING

Period of Record General Climate Summary - Growing Degree Days

Station:(484442) HECLA 1 E
From Year=1979 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 12 12 56 128 330 590 866 795 508 214 61 9 3582
40 S 12 24 80 208 538 1128 1994 2789 3297 3511 3573 3582 3582
45 M 3 2 18 55 204 441 711 640 365 113 22 1 2575
45 S 3 4 23 78 281 723 1433 2074 2438 2552 2574 2575 2575
50 M 0 0 3 17 105 300 556 485 233 47 5 0 1752
50 S 0 1 4 21 126 426 982 1467 1700 1747 1752 1752 1752
55 M 0 0 0 4 41 173 402 332 123 14 0 0 1091
55 S 0 0 0 4 45 218 621 953 1076 1090 1091 1091 1091
60 M 0 0 0 1 10 79 252 188 49 2 0 0 581
60 S 0 0 0 1 11 90 342 530 579 581 581 581 581
Corn Growing Degree Days
50 M 9 11 59 107 222 376 552 506 333 168 56 7 2406
50 S 9 20 79 187 408 785 1336 1843 2175 2343 2399 2406 2406
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