ARCHER, WYOMING

Period of Record General Climate Summary - Growing Degree Days

Station:(480270) ARCHER
From Year=1911 To Year=2005
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 11 19 56 152 376 645 891 841 559 272 61 15 3898
40 S 11 31 86 238 614 1259 2150 2991 3550 3821 3883 3898 3898
45 M 2 4 21 75 243 497 736 686 417 160 23 3 2867
45 S 2 6 28 102 345 842 1578 2264 2681 2841 2863 2867 2867
50 M 0 0 7 28 133 354 581 531 284 77 5 0 2001
50 S 0 1 7 35 168 522 1103 1634 1918 1996 2001 2001 2001
55 M 0 0 2 7 57 222 428 378 169 28 0 0 1291
55 S 0 0 2 9 66 288 716 1094 1263 1290 1290 1291 1291
60 M 0 0 1 1 17 115 278 231 79 6 0 0 727
60 S 0 0 1 1 18 132 411 642 721 727 727 727 727
Corn Growing Degree Days
50 M 17 26 64 134 258 404 556 529 375 220 66 22 2669
50 S 17 42 106 240 498 902 1458 1987 2362 2582 2647 2669 2669
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