TRUCKEE RANGER STN, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(049043) TRUCKEE RANGER STN
From Year=1948 To Year=2005
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	6	25	87	250	447	677	638	452	222	36	4	2845
40 S	2	8	33	119	370	817	1493	2132	2584	2806	2841	2845	2845
45 M	0	0	4	29	135	305	522	484	309	112	7	0	1907
45 S	0	1	4	33	168	474	996	1479	1788	1900	1907	1907	1907
50 M	0	0	0	6	56	180	368	332	180	40	0	0	1162
50 S	0	0	0	6	62	242	611	942	1122	1162	1162	1162	1162
55 M	0	0	0	0	16	84	222	189	78	8	0	0	598
55 S	0	0	0	0	17	100	322	511	590	598	598	598	598
60 M	0	0	0	0	2	27	99	77	20	0	0	0	226
60 S	0	0	0	0	2	29	128	205	225	226	226	226	226

Corn Growing Degree Days
50 M	6	16	39	98	217	341	486	469	367	228	57	9	2333
50 S	6	22	61	159	376	717	1202	1672	2039	2267	2324	2333	2333

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 Apr 5, 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