SANTA CRUZ, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(047916) SANTA CRUZ
From Year=1893 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	299	329	412	468	567	641	709	721	690	615	433	314	6198
40 S	299	628	1040	1508	2075	2716	3425	4146	4836	5451	5883	6198	6198
45 M	156	192	259	318	412	491	554	566	540	460	283	168	4400
45 S	156	349	608	926	1337	1829	2383	2948	3488	3948	4232	4400	4400
50 M	53	79	122	173	257	341	399	411	390	306	145	59	2734
50 S	53	132	254	427	684	1025	1424	1835	2225	2531	2675	2734	2734
55 M	9	18	34	60	114	193	244	256	240	159	48	10	1385
55 S	9	27	61	121	235	428	672	928	1169	1328	1376	1385	1385
60 M	1	2	5	13	29	66	98	108	104	55	9	1	490
60 S	1	2	8	21	50	115	214	321	425	481	490	490	490

Corn Growing Degree Days
50 M	164	179	230	271	325	374	416	425	409	365	254	176	3587
50 S	164	342	572	843	1168	1542	1958	2382	2791	3157	3411	3587	3587

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