BORREGO DESERT PARK, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(040983) BORREGO DESERT PARK
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	517	554	738	873	1144	1364	1591	1569	1360	1092	721	504	12028
40 S	517	1071	1810	2683	3827	5190	6782	8351	9711	10804	11524	12028	12028
45 M	364	414	583	723	989	1214	1436	1414	1210	937	571	351	10208
45 S	364	779	1362	2085	3074	4287	5724	7138	8348	9286	9857	10208	10208
50 M	221	277	429	573	834	1064	1281	1259	1060	782	422	209	8412
50 S	221	498	927	1500	2334	3398	4679	5938	6999	7781	8203	8412	8412
55 M	104	154	282	426	679	914	1126	1104	910	628	279	94	6699
55 S	104	258	539	965	1644	2558	3684	4789	5699	6327	6606	6699	6699
60 M	32	66	159	288	525	764	971	949	760	475	156	26	5173
60 S	32	99	257	546	1071	1835	2806	3756	4516	4991	5147	5173	5173

Corn Growing Degree Days
50 M	306	331	454	543	704	811	952	951	837	692	449	301	7331
50 S	306	637	1091	1634	2338	3149	4101	5052	5889	6581	7030	7331	7331

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