SANTA ROSA SCHOOL, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(027600) SANTA ROSA SCHOOL
From Year=1959 To Year=1977
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	293	390	579	739	1036	1296	1493	1430	1225	924	543	310	10257
40 S	293	683	1262	2002	3037	4333	5826	7256	8480	9405	9947	10257	10257
45 M	162	255	426	589	881	1146	1338	1275	1075	769	395	173	8484
45 S	162	417	843	1432	2313	3459	4797	6072	7146	7915	8310	8484	8484
50 M	63	135	281	440	726	996	1183	1120	925	615	253	71	6807
50 S	63	199	479	919	1645	2641	3824	4944	5868	6483	6736	6807	6807
55 M	15	55	158	297	571	846	1028	965	775	463	132	20	5324
55 S	15	70	228	525	1095	1941	2969	3934	4709	5172	5304	5324	5324
60 M	2	14	72	172	417	696	873	810	625	317	48	3	4048
60 S	2	16	89	260	677	1373	2246	3056	3680	3997	4045	4048	4048

Corn Growing Degree Days
50 M	247	300	405	486	632	757	903	891	761	586	384	246	6599
50 S	247	547	952	1438	2071	2828	3731	4621	5382	5968	6352	6599	6599

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