| April 2011 Global Astronomy Month Central Park Cloud Cover |
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| 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| 24 | 25 | 26 | 27 | 28 | 29 | 30 |
| Clear | Hazy | Scatter Clouds | Partly Cloudy | Mostly Cloudy | Overcast | Rain |
| April 2011 Global Astronomy Month Central Park Wind Speed |
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|---|---|---|---|---|---|---|
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| 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| 24 | 25 | 26 | 27 | 28 | 29 | 30 |
| Calm <1 mph | Light Air 1-3 mph |
Light Breeze 4-7 mph | Gentle Breeze 8-12 mph |
Moderate Breeze 12-17 mph | Fresh Breeze 18-24 mph |
Strong Breeze 25-39 mph | Moderate Gale 31-38 mph |
| Indicates mmximum wind or wind gust reported | ||||||
