BRIDGEWATER, SOUTH DAKOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(391032) BRIDGEWATER
From Year=1948 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	1	7	56	266	603	880	1064	999	678	336	54	2	4946
40 S	1	7	63	330	933	1813	2877	3876	4555	4890	4945	4946	4946
45 M	0	1	25	166	453	730	909	844	530	214	21	0	3895
45 S	0	1	26	192	644	1375	2284	3128	3659	3873	3894	3895	3895
50 M	0	0	9	92	313	580	754	689	388	120	7	0	2953
50 S	0	0	9	102	414	994	1749	2438	2826	2946	2953	2953	2953
55 M	0	0	3	45	192	433	599	534	259	56	1	0	2122
55 S	0	0	3	48	240	673	1272	1806	2065	2121	2122	2122	2122
60 M	0	0	1	19	99	291	445	381	152	21	0	0	1410
60 S	0	0	1	20	119	410	855	1236	1388	1410	1410	1410	1410

Corn Growing Degree Days
50 M	2	9	46	179	369	566	703	655	425	218	44	3	3218
50 S	2	11	57	236	605	1171	1874	2529	2954	3172	3215	3218	3218

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