SUNDANCE, WYOMING

Period of Record General Climate Summary - Growing Degree Days

Station:(488705) SUNDANCE
From Year=1915 To Year=2006
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	6	33	146	374	629	895	848	528	241	36	4	3742
40 S	1	7	40	185	560	1189	2084	2932	3461	3702	3738	3742	3742
45 M	0	1	11	73	244	481	740	693	389	140	12	1	2785
45 S	0	1	11	85	329	810	1550	2243	2632	2772	2784	2785	2785
50 M	0	0	2	30	142	339	585	539	262	67	2	0	1968
50 S	0	0	2	32	174	513	1098	1637	1899	1966	1968	1968	1968
55 M	0	0	0	10	69	213	432	388	156	24	0	0	1291
55 S	0	0	0	10	79	291	724	1111	1267	1291	1291	1291	1291
60 M	0	0	0	2	27	114	286	246	76	6	0	0	757
60 S	0	0	0	2	29	143	429	675	751	757	757	757	757

Corn Growing Degree Days
50 M	1	6	31	112	236	387	569	539	342	173	31	3	2431
50 S	1	7	37	150	386	773	1342	1881	2223	2396	2427	2431	2431

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