BAKER, MONTANA

Period of Record General Climate Summary - Growing Degree Days

Station:(240412) BAKER
From Year=1922 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	5	5	56	216	439	702	1056	974	578	228	45	5	4310
40 S	5	10	66	282	721	1423	2479	3453	4031	4260	4305	4310	4310
45 M	1	2	26	124	301	554	901	819	436	134	17	1	3316
45 S	1	3	29	153	455	1008	1909	2728	3164	3298	3315	3316	3316
50 M	0	0	10	61	184	409	746	664	306	71	4	0	2455
50 S	0	0	10	71	255	664	1410	2074	2380	2451	2455	2455	2455
55 M	0	0	3	26	98	274	591	509	197	33	0	0	1731
55 S	0	0	3	29	127	401	992	1501	1698	1731	1731	1731	1731
60 M	0	0	0	8	41	163	438	359	111	12	0	0	1134
60 S	0	0	0	9	50	213	651	1010	1122	1134	1134	1134	1134

Corn Growing Degree Days
50 M	4	7	49	153	266	428	668	613	363	164	51	6	2772
50 S	4	11	60	213	479	907	1575	2189	2551	2715	2766	2772	2772

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