PASO ROBLES FAA ARPT, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(046742) PASO ROBLES FAA ARPT
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	219	285	391	503	707	865	1044	1034	889	686	380	214	7216
40 S	219	504	895	1398	2104	2969	4013	5047	5936	6622	7002	7216	7216
45 M	98	155	240	353	552	715	889	879	739	531	236	92	5480
45 S	98	253	493	847	1398	2113	3002	3881	4620	5151	5387	5480	5480
50 M	27	59	113	212	397	565	734	724	589	378	116	24	3938
50 S	27	86	199	411	808	1373	2107	2831	3420	3798	3913	3938	3938
55 M	4	12	35	100	248	415	579	569	439	233	37	3	2674
55 S	4	16	51	151	399	814	1393	1962	2401	2634	2671	2674	2674
60 M	0	1	6	34	126	270	425	414	292	113	6	0	1686
60 S	0	1	7	41	167	437	861	1275	1567	1680	1686	1686	1686

Corn Growing Degree Days
50 M	149	183	253	336	444	514	604	599	532	449	267	158	4488
50 S	149	332	584	921	1365	1879	2483	3082	3614	4063	4330	4488	4488

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