OLMSTEAD POWERHOUSE, UTAH

Period of Record General Climate Summary - Growing Degree Days

Station:(426455) OLMSTEAD POWERHOUSE
From Year=1977 To Year=2003
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	12	35	146	329	586	848	1098	1063	746	421	111	18	5413
40 S	12	47	192	521	1107	1955	3054	4117	4863	5285	5396	5413	5413
45 M	1	9	66	207	437	698	943	908	597	284	49	4	4204
45 S	1	10	76	282	719	1417	2360	3269	3866	4150	4199	4204	4204
50 M	0	1	22	112	299	549	788	753	451	165	15	1	3157
50 S	0	1	23	135	434	983	1772	2525	2976	3142	3157	3157	3157
55 M	0	0	4	48	183	403	633	598	311	75	2	0	2259
55 S	0	0	4	52	236	639	1272	1870	2182	2257	2259	2259	2259
60 M	0	0	0	15	94	267	479	444	185	23	0	0	1508
60 S	0	0	0	15	109	377	855	1299	1485	1508	1508	1508	1508

Corn Growing Degree Days
50 M	7	24	102	213	367	532	692	676	475	272	75	12	3447
50 S	7	31	133	346	713	1245	1938	2614	3090	3361	3436	3447	3447

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