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| Today | Normal | Record | 5/27/2012 | |
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| High | 76° | 79° | 97° (1917) | 89° |
| Low | 49° | 59° | 40° (1967) | 63° |
Rises at 5:43 AM with 14:33 of sunlight, then sets at 8:16 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.