SALT LAKE CITY NWSFO, UTAH

Period of Record General Climate Summary - Growing Degree Days

Station:(427598) SALT LAKE CITY NWSFO
From Year=1948 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	13	35	134	304	595	863	1170	1113	764	409	100	16	5515
40 S	13	48	182	486	1080	1943	3113	4227	4990	5399	5499	5515	5515
45 M	2	9	58	182	443	713	1015	958	614	271	40	4	4309
45 S	2	11	69	251	695	1407	2423	3381	3995	4265	4305	4309	4309
50 M	0	2	19	93	302	563	860	803	468	155	12	1	3278
50 S	0	2	21	113	416	979	1839	2642	3110	3265	3277	3278	3278
55 M	0	0	4	39	182	417	705	648	328	72	2	0	2398
55 S	0	0	4	44	225	642	1347	1996	2324	2396	2398	2398	2398
60 M	0	0	0	13	92	281	551	494	204	26	0	0	1661
60 S	0	0	0	13	105	386	937	1431	1635	1661	1661	1661	1661

Corn Growing Degree Days
50 M	6	21	82	184	362	542	749	722	485	255	62	7	3477
50 S	6	26	108	292	654	1196	1946	2668	3152	3408	3470	3477	3477

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