HOLLISTER, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(044022) HOLLISTER
From Year=1935 To Year=1974
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	263	335	427	511	630	729	825	825	804	678	427	292	6745
40 S	263	598	1025	1536	2166	2894	3720	4545	5349	6026	6454	6745	6745
45 M	131	197	274	361	475	579	670	670	654	523	279	155	4968
45 S	131	329	603	964	1439	2018	2688	3358	4012	4535	4814	4968	4968
50 M	44	85	137	217	320	429	515	515	504	369	146	58	3337
50 S	44	129	265	482	802	1231	1746	2261	2765	3134	3280	3337	3337
55 M	8	22	45	98	173	279	360	360	354	220	50	11	1981
55 S	8	30	74	172	345	625	985	1345	1699	1920	1970	1981	1981
60 M	1	3	7	30	66	140	207	207	209	98	10	1	978
60 S	1	4	10	40	106	246	453	661	869	967	977	978	978

Corn Growing Degree Days
50 M	165	202	265	315	379	440	510	512	496	428	279	182	4173
50 S	165	367	631	947	1325	1766	2276	2788	3284	3712	3991	4173	4173

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