ORAIBI, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(026124) ORAIBI
From Year=1945 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	5	39	125	300	565	802	1059	1019	758	427	86	8	5192
40 S	5	43	168	468	1033	1835	2894	3913	4670	5097	5184	5192	5192
45 M	0	10	51	179	412	652	904	864	608	292	24	0	3997
45 S	0	10	61	241	653	1305	2209	3073	3681	3973	3997	3997	3997
50 M	0	1	11	85	267	502	749	709	460	168	4	0	2955
50 S	0	1	12	97	363	866	1615	2323	2783	2951	2955	2955	2955
55 M	0	0	1	27	141	353	594	554	319	72	0	0	2060
55 S	0	0	1	27	169	522	1116	1670	1989	2060	2060	2060	2060
60 M	0	0	0	2	47	212	439	399	187	18	0	0	1304
60 S	0	0	0	2	49	261	700	1098	1286	1304	1304	1304	1304

Corn Growing Degree Days
50 M	10	41	121	237	400	527	673	643	490	292	88	22	3542
50 S	10	51	172	409	808	1335	2008	2651	3141	3433	3520	3542	3542

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