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Period of Record General Climate Summary - Growing Degree Days

Station:(471978) DANBURY
From Year=1919 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	0	1	19	151	463	713	892	822	531	235	30	1	3858
40 S	0	1	20	172	635	1348	2239	3061	3592	3827	3857	3858	3858
45 M	0	0	7	81	322	563	737	667	387	136	10	0	2910
45 S	0	0	8	89	411	974	1710	2377	2764	2900	2910	2910	2910
50 M	0	0	3	39	202	415	582	512	256	67	3	0	2078
50 S	0	0	3	41	243	658	1240	1752	2008	2075	2078	2078	2078
55 M	0	0	1	16	111	276	427	361	151	28	1	0	1370
55 S	0	0	1	16	127	403	830	1190	1341	1370	1370	1370	1370
60 M	0	0	0	5	51	157	278	221	77	9	0	0	800
60 S	0	0	0	5	56	214	492	713	790	800	800	800	800

Corn Growing Degree Days
50 M	0	1	16	118	307	454	581	530	333	155	20	1	2516
50 S	0	1	17	135	442	896	1477	2007	2340	2496	2515	2516	2516

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