TUJUNGA, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(049047) TUJUNGA
From Year=1966 To Year=1987
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	415	430	489	565	738	892	1110	1105	957	776	531	409	8416
40 S	415	845	1334	1899	2637	3529	4638	5743	6700	7476	8007	8416	8416
45 M	269	291	335	415	583	742	955	950	807	621	382	262	6612
45 S	269	560	895	1311	1894	2636	3590	4540	5347	5968	6350	6612	6612
50 M	144	165	194	273	428	592	800	795	657	467	240	136	4890
50 S	144	309	503	776	1204	1796	2596	3391	4048	4514	4754	4890	4890
55 M	64	73	92	153	279	442	645	640	507	316	125	53	3388
55 S	64	138	229	382	661	1103	1748	2388	2895	3210	3336	3388	3388
60 M	24	26	31	69	155	298	490	485	358	181	50	15	2180
60 S	24	50	81	150	305	603	1092	1577	1935	2116	2165	2180	2180

Corn Growing Degree Days
50 M	228	246	284	337	437	547	700	702	604	472	298	224	5079
50 S	228	474	758	1095	1532	2079	2779	3480	4085	4557	4855	5079	5079

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