GARRISON, UTAH

Period of Record General Climate Summary - Growing Degree Days

Station:(423138) GARRISON
From Year=1951 To Year=1990
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	15	39	110	266	533	805	1083	1022	686	361	96	20	5038
40 S	15	55	165	431	964	1769	2852	3874	4561	4922	5018	5038	5038
45 M	3	12	44	153	385	655	928	867	538	231	40	5	3861
45 S	3	15	60	213	598	1253	2180	3048	3586	3817	3856	3861	3861
50 M	0	2	13	73	249	506	773	712	394	123	12	1	2857
50 S	0	2	15	88	337	843	1615	2328	2721	2844	2856	2857	2857
55 M	0	0	2	27	138	360	618	557	260	51	2	0	2013
55 S	0	0	2	28	166	526	1144	1701	1961	2012	2013	2013	2013
60 M	0	0	0	5	58	229	463	403	145	13	0	0	1316
60 S	0	0	0	5	63	292	755	1158	1303	1316	1316	1316	1316

Corn Growing Degree Days
50 M	17	42	111	222	380	518	667	645	461	281	91	23	3458
50 S	17	59	170	393	773	1291	1957	2602	3063	3344	3435	3458	3458

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