DRAYTON, NORTH DAKOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(322312) DRAYTON
From Year=1967 To Year=2000
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	6	127	468	759	867	857	495	178	15	0	3773
40 S	0	1	7	133	601	1361	2228	3085	3580	3758	3773	3773	3773
45 M	0	0	0	63	331	609	712	702	354	94	7	0	2873
45 S	0	0	0	63	395	1004	1716	2419	2773	2866	2873	2873	2873
50 M	0	0	0	27	215	461	557	547	230	41	2	0	2081
50 S	0	0	0	27	242	703	1260	1808	2038	2079	2081	2081	2081
55 M	0	0	0	10	126	319	403	394	132	15	1	0	1398
55 S	0	0	0	10	136	455	858	1252	1383	1398	1398	1398	1398
60 M	0	0	0	2	62	195	255	249	66	3	0	0	831
60 S	0	0	0	2	64	258	513	762	828	831	831	831	831

Corn Growing Degree Days
50 M	0	1	4	84	284	475	552	546	302	111	11	0	2369
50 S	0	1	5	89	373	847	1399	1946	2247	2358	2369	2369	2369

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