MONTEREY, VIRGINIA

Period of Record General Climate Summary - Growing Degree Days

Station:(445698) MONTEREY
From Year=1894 To Year=1990
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	21	27	104	287	551	735	871	838	636	354	134	36	4593
40 S	21	47	152	439	990	1725	2595	3434	4070	4423	4557	4593	4593
45 M	7	8	50	180	402	585	716	683	487	223	66	14	3421
45 S	7	15	65	245	647	1232	1948	2631	3118	3341	3407	3421	3421
50 M	1	2	20	98	263	436	561	528	343	121	26	4	2404
50 S	1	3	23	122	385	821	1382	1910	2253	2374	2400	2404	2404
55 M	0	0	6	45	147	292	406	374	211	51	7	1	1539
55 S	0	0	6	51	197	489	895	1270	1481	1532	1538	1539	1539
60 M	0	0	1	15	61	164	255	226	105	15	1	0	842
60 S	0	0	1	16	76	240	495	721	826	841	842	842	842

Corn Growing Degree Days
50 M	12	18	73	181	333	463	566	538	392	224	85	22	2908
50 S	12	30	103	285	617	1081	1647	2185	2577	2802	2886	2908	2908

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