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=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	8	38	189	370	677	959	1180	1100	822	473	109	8	5931
40 S	8	45	234	604	1281	2239	3420	4520	5342	5814	5923	5931	5931
45 M	1	10	91	239	523	809	1025	945	672	329	45	2	4691
45 S	1	11	103	342	864	1673	2698	3643	4315	4644	4689	4691	4691
50 M	0	1	35	132	374	659	870	790	522	203	12	0	3599
50 S	0	2	36	168	542	1200	2071	2861	3383	3586	3598	3599	3599
55 M	0	0	9	57	238	509	715	635	376	105	2	0	2646
55 S	0	0	9	66	304	813	1528	2164	2540	2644	2646	2646	2646
60 M	0	0	1	17	126	364	560	480	238	43	0	0	1829
60 S	0	0	1	18	144	508	1068	1549	1786	1829	1829	1829	1829

Corn Growing Degree Days
50 M	9	30	130	238	424	614	770	729	527	280	70	8	3827
50 S	9	39	168	406	830	1444	2214	2942	3469	3749	3819	3827	3827

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