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| Today | Normal | Record | 5/23/2012 | |
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| High | 70° | 76° | 96° (1967) | 94° |
| Low | 48° | 53° | 39° (1893) | 66° |
Rises at 6:03 AM with 14:40 of sunlight, then sets at 8:43 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.