MALTA 35 S, MONTANA

Period of Record General Climate Summary - Growing Degree Days

Station:(245340) MALTA 35 S
From Year=1959 To Year=2006
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	7	11	49	180	449	693	936	909	522	232	36	7	4031
40 S	7	19	68	248	696	1389	2325	3234	3756	3987	4024	4031	4031
45 M	2	2	16	93	306	543	781	754	381	129	12	2	3022
45 S	2	4	20	114	420	962	1744	2498	2879	3008	3021	3022	3022
50 M	0	0	4	40	182	394	626	599	253	60	3	0	2163
50 S	0	1	4	44	227	621	1247	1847	2099	2160	2163	2163	2163
55 M	0	0	1	13	89	254	472	447	147	22	0	0	1445
55 S	0	0	1	13	103	357	829	1275	1422	1444	1445	1445	1445
60 M	0	0	0	2	34	139	321	301	72	5	0	0	874
60 S	0	0	0	2	36	175	496	797	869	874	874	874	874

Corn Growing Degree Days
50 M	6	16	54	153	295	424	584	564	350	189	41	9	2685
50 S	6	22	76	229	524	947	1531	2096	2446	2635	2676	2685	2685

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 Jul 28, 2006
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