SACRAMENTO FAA ARPT, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(047630) SACRAMENTO FAA ARPT
From Year=1941 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	185	296	428	561	784	937	1100	1073	951	745	394	196	7648
40 S	185	481	908	1469	2253	3190	4290	5363	6314	7059	7453	7648	7648
45 M	76	163	274	411	629	787	945	918	801	590	248	82	5924
45 S	76	239	513	924	1553	2340	3284	4203	5004	5594	5842	5924	5924
50 M	20	60	137	265	474	637	790	763	651	435	123	23	4378
50 S	20	80	217	482	956	1593	2383	3146	3797	4232	4356	4378	4378
55 M	3	11	47	138	322	487	635	608	501	284	42	3	3080
55 S	3	14	62	200	521	1008	1643	2251	2752	3036	3077	3080	3080
60 M	0	1	9	53	185	338	480	453	352	148	8	0	2027
60 S	0	1	10	63	248	586	1066	1519	1871	2019	2027	2027	2027

Corn Growing Degree Days
50 M	71	143	229	328	474	577	672	663	592	452	210	78	4488
50 S	71	213	442	770	1245	1822	2494	3157	3749	4200	4410	4488	4488

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