CAPITOL REEF NATL PARK, UTAH

Period of Record General Climate Summary - Growing Degree Days

Station:(421171) CAPITOL REEF NATL PARK
From Year=1967 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	8	41	190	376	682	956	1178	1102	822	481	106	9	5950
40 S	8	49	238	614	1297	2253	3431	4533	5354	5835	5941	5950	5950
45 M	2	11	92	244	528	806	1023	947	672	336	43	2	4705
45 S	2	13	104	348	876	1682	2705	3653	4324	4660	4703	4705	4705
50 M	0	1	35	135	378	656	868	792	522	208	12	0	3608
50 S	0	2	37	172	550	1206	2074	2866	3388	3596	3608	3608	3608
55 M	0	0	9	59	241	507	713	637	375	109	2	0	2652
55 S	0	0	9	68	309	816	1529	2166	2541	2650	2652	2652	2652
60 M	0	0	1	18	129	361	558	482	237	45	0	0	1831
60 S	0	0	1	19	148	509	1067	1549	1786	1831	1831	1831	1831

Corn Growing Degree Days
50 M	10	31	130	242	429	612	766	729	526	286	70	8	3840
50 S	10	41	171	413	843	1455	2221	2950	3476	3762	3831	3840	3840

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