MAYVILLE, NORTH DAKOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(325660) MAYVILLE
From Year=1893 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	0	17	162	477	743	940	871	547	232	23	1	4014
40 S	0	0	17	180	657	1400	2340	3211	3758	3990	4013	4014	4014
45 M	0	0	6	89	337	593	785	716	404	133	7	0	3071
45 S	0	0	6	95	432	1026	1811	2527	2930	3063	3071	3071	3071
50 M	0	0	2	43	216	445	630	561	272	66	2	0	2237
50 S	0	0	2	45	261	706	1336	1897	2169	2235	2237	2237	2237
55 M	0	0	1	17	122	302	476	407	162	27	0	0	1515
55 S	0	0	1	18	140	442	918	1325	1487	1514	1515	1515	1515
60 M	0	0	0	6	59	177	324	262	83	8	0	0	919
60 S	0	0	0	6	65	242	566	828	911	919	919	919	919

Corn Growing Degree Days
50 M	0	0	14	117	303	465	610	557	339	151	19	1	2576
50 S	0	1	14	131	434	900	1510	2067	2406	2557	2576	2576	2576

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