TULELAKE, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(049053) TULELAKE
From Year=1932 To Year=2012
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	8	18	59	163	382	566	785	730	519	263	45	9	3547
40 S	8	26	86	249	631	1197	1981	2711	3230	3493	3538	3547	3547
45 M	1	2	14	76	243	417	630	575	371	141	11	1	2483
45 S	1	3	18	94	337	754	1383	1959	2329	2470	2482	2483	2483
50 M	0	0	2	25	133	275	475	421	232	57	1	0	1621
50 S	0	0	2	27	160	435	910	1330	1563	1620	1621	1621	1621
55 M	0	0	0	5	58	154	322	271	116	16	0	0	942
55 S	0	0	0	5	63	217	539	810	926	942	942	942	942
60 M	0	0	0	1	17	67	180	136	38	2	0	0	441
60 S	0	0	0	1	18	85	265	401	439	441	441	441	441

Corn Growing Degree Days
50 M	6	22	73	154	282	383	519	504	407	249	54	6	2659
50 S	6	29	102	256	537	920	1439	1944	2351	2599	2653	2659	2659

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 Oct 31, 2012
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