RYE, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(057315) RYE
From Year=1940 To Year=1992
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	15	21	64	197	405	655	835	758	541	287	68	20	3867
40 S	15	36	100	298	703	1358	2194	2952	3493	3779	3847	3867	3867
45 M	4	6	24	104	264	507	680	603	395	167	22	4	2779
45 S	4	10	34	138	402	909	1589	2192	2587	2754	2775	2779	2779
50 M	1	1	6	43	144	362	525	449	256	76	3	1	1867
50 S	1	2	8	51	195	557	1082	1531	1787	1863	1866	1867	1867
55 M	1	0	1	13	59	227	371	296	137	25	0	0	1129
55 S	1	1	2	15	74	301	672	967	1104	1129	1129	1129	1129
60 M	1	0	0	2	15	114	220	153	53	5	0	0	563
60 S	1	1	1	3	18	132	352	506	558	563	563	563	563

Corn Growing Degree Days
50 M	27	35	75	172	289	427	526	477	360	229	79	32	2728
50 S	27	62	137	309	598	1024	1551	2027	2387	2616	2695	2728	2728

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