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| Today | Normal | Record | 5/31/2012 | |
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| High | 89° | 89° | 96° (1953) | 87° |
| Low | 73° | 71° | 55° (1971) | 79° |
Rises at 6:36 AM with 13:45 of sunlight, then sets at 8:21 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.