LAKE HAVASU, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(024759) LAKE HAVASU
From Year=1967 To Year=1991
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	400	508	771	997	1296	1547	1753	1698	1432	1117	673	426	12618
40 S	400	909	1679	2676	3971	5518	7272	8970	10403	11520	12192	12618	12618
45 M	249	370	616	847	1141	1397	1598	1543	1282	962	523	276	10804
45 S	249	619	1235	2081	3222	4619	6218	7761	9043	10006	10528	10804	10804
50 M	115	237	461	697	986	1247	1443	1388	1132	807	373	139	9026
50 S	115	352	813	1509	2495	3742	5185	6574	7706	8513	8887	9026	9026
55 M	32	121	308	547	831	1097	1288	1233	982	652	234	43	7369
55 S	32	153	461	1007	1838	2935	4223	5457	6439	7091	7325	7369	7369
60 M	3	43	170	399	676	947	1133	1078	832	497	121	5	5904
60 S	3	46	216	614	1290	2237	3371	4449	5281	5779	5900	5904	5904

Corn Growing Degree Days
50 M	216	296	466	635	826	944	1090	1064	901	723	403	238	7800
50 S	216	511	977	1612	2438	3382	4472	5536	6436	7159	7563	7800	7800

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