FORT JONES RANGER STN, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(043182) FORT JONES RANGER STN
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	16	50	124	266	464	685	918	861	635	350	99	20	4490
40 S	16	66	190	456	920	1606	2524	3385	4019	4370	4469	4490	4490
45 M	2	11	41	144	316	536	763	706	485	214	34	4	3256
45 S	2	13	54	199	514	1050	1813	2519	3004	3218	3252	3256	3256
50 M	0	1	8	61	186	388	608	551	340	105	6	0	2254
50 S	0	1	9	70	256	644	1252	1803	2142	2247	2254	2254	2254
55 M	0	0	0	15	89	251	454	397	207	37	0	0	1450
55 S	0	0	0	16	105	355	809	1206	1413	1450	1450	1450	1450
60 M	0	0	0	1	30	135	302	250	97	6	0	0	822
60 S	0	0	0	1	31	166	469	718	816	822	822	822	822

Corn Growing Degree Days
50 M	8	55	127	235	352	455	562	540	463	317	99	11	3223
50 S	8	63	190	425	777	1232	1794	2333	2797	3114	3213	3223	3223

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