KAHOOLAWE 499.6, HAWAII

Period of Record General Climate Summary - Growing Degree Days

Station:(512558) KAHOOLAWE 499.6
From Year=1989 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	909	825	913	902	957	951	1035	1032	1002	1026	950	941	11444
40 S	909	1734	2647	3548	4506	5457	6493	7525	8527	9553	10503	11444	11444
45 M	754	684	758	752	802	801	880	877	852	871	800	786	9618
45 S	754	1438	2196	2947	3750	4551	5431	6309	7161	8032	8832	9618	9618
50 M	599	543	603	602	647	651	725	722	702	716	650	631	7792
50 S	599	1142	1744	2346	2993	3645	4370	5092	5794	6510	7161	7792	7792
55 M	444	402	448	452	492	501	570	567	552	561	500	476	5965
55 S	444	846	1293	1745	2237	2739	3309	3876	4428	4989	5490	5965	5965
60 M	289	261	293	302	337	351	415	412	402	406	350	321	4139
60 S	289	550	842	1144	1481	1833	2248	2660	3062	3468	3819	4139	4139

Corn Growing Degree Days
50 M	599	540	601	601	647	651	722	722	702	716	650	631	7782
50 S	599	1139	1740	2341	2988	3639	4361	5083	5785	6501	7151	7782	7782

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