CITY CREEK WATER PLANT, UTAH

Period of Record General Climate Summary - Growing Degree Days

Station:(421446) CITY CREEK WATER PLANT
From Year=1955 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	2	8	91	232	499	733	1056	964	652	342	57	7	4642
40 S	2	10	101	333	832	1565	2620	3584	4236	4578	4635	4642	4642
45 M	0	2	33	121	354	583	901	809	504	213	20	0	3538
45 S	0	2	35	156	509	1092	1993	2801	3305	3519	3538	3538	3538
50 M	0	0	9	48	230	437	746	654	359	112	5	0	2599
50 S	0	0	9	57	287	724	1469	2123	2482	2594	2599	2599	2599
55 M	0	0	2	13	130	301	591	500	225	45	0	0	1805
55 S	0	0	2	15	144	445	1036	1535	1760	1804	1805	1805	1805
60 M	0	0	0	2	56	178	436	347	118	11	0	0	1147
60 S	0	0	0	2	58	236	672	1018	1136	1147	1147	1147	1147

Corn Growing Degree Days
50 M	3	6	70	157	323	466	676	628	410	219	39	4	3000
50 S	3	9	79	236	559	1025	1701	2330	2740	2958	2997	3000	3000

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