LAS VEGAS MCCARRAN AP, NEVADA

Period of Record General Climate Summary - Growing Degree Days

Station:(264436) LAS VEGAS WSO AIRPORT
From Year=1937 To Year=2012
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	205	309	527	751	1078	1331	1570	1509	1223	867	430	202	10003
40 S	205	514	1041	1792	2870	4201	5771	7280	8503	9370	9800	10003	10003
45 M	93	183	375	601	923	1181	1415	1354	1073	712	287	88	8285
45 S	93	276	651	1252	2175	3356	4771	6125	7199	7911	8197	8285	8285
50 M	27	84	234	452	768	1031	1260	1199	923	558	163	23	6723
50 S	27	111	345	798	1566	2597	3857	5056	5979	6537	6700	6723	6723
55 M	4	26	121	311	613	881	1105	1044	773	407	75	3	5364
55 S	4	30	151	462	1076	1957	3062	4106	4879	5286	5360	5364	5364
60 M	0	5	49	187	461	731	950	889	624	267	23	0	4186
60 S	0	5	54	241	702	1433	2383	3272	3896	4162	4186	4186	4186

Corn Growing Degree Days
50 M	124	181	316	467	693	837	974	946	784	551	255	122	6249
50 S	124	304	620	1087	1780	2617	3591	4538	5321	5872	6127	6249	6249

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