BEN LOMOND #4, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(040674) BEN LOMOND
From Year=1937 To Year=1965
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	193	248	325	439	560	654	778	770	732	601	363	248	5913
40 S	193	442	767	1205	1765	2419	3198	3968	4700	5301	5664	5913	5913
45 M	79	123	176	289	405	504	623	615	582	446	218	114	4176
45 S	79	202	378	668	1072	1577	2200	2815	3398	3844	4062	4176	4176
50 M	17	37	65	150	250	354	468	460	432	293	98	31	2656
50 S	17	55	119	269	519	874	1342	1802	2235	2528	2625	2656	2656
55 M	2	5	11	53	112	207	313	306	283	152	28	4	1476
55 S	2	7	17	70	183	390	703	1009	1292	1444	1472	1476	1476
60 M	0	0	1	14	31	83	161	154	142	55	6	0	646
60 S	0	0	1	15	46	128	289	443	585	640	646	646	646

Corn Growing Degree Days
50 M	111	146	197	275	342	400	485	486	459	390	236	144	3672
50 S	111	256	453	729	1070	1471	1955	2442	2901	3291	3528	3672	3672

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