LANDSBURG, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(454486) LANDSBURG
From Year=1903 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	46	66	123	235	414	547	699	689	523	307	113	49	3810
40 S	46	112	235	470	884	1431	2130	2818	3341	3648	3761	3810	3810
45 M	8	16	38	110	261	397	544	534	373	165	35	10	2492
45 S	8	25	63	173	434	831	1374	1908	2281	2446	2482	2492	2492
50 M	1	2	8	38	129	249	389	379	227	62	6	1	1489
50 S	1	3	10	48	177	426	815	1193	1420	1482	1488	1489	1489
55 M	0	0	1	10	48	118	236	226	101	14	1	0	754
55 S	0	0	1	11	59	176	412	638	739	753	753	754	754
60 M	0	0	0	1	14	39	104	95	29	2	0	0	285
60 S	0	0	0	2	15	55	159	254	282	284	285	285	285

Corn Growing Degree Days
50 M	9	27	64	129	231	303	417	413	302	153	35	9	2094
50 S	9	36	100	229	461	763	1181	1594	1896	2049	2085	2094	2094

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