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| Today | Normal | Record | 5/23/2012 | |
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| High | 77° | 69° | 91° (1992) | 73° |
| Low | 56° | 48° | 31° (1967) | 57° |
Rises at 5:17 AM with 15:05 of sunlight, then sets at 8:22 PM
May 23, 2013; 5:00 AM ET A team has developed a model to determine the influences of humans and climate on vegetation changes. Valerie Smock explains what has the greatest effect.