Where can I find the average wind speed and direction for my area?

Average wind speed and direction data is compiled into a Wind Rose Diagram. The diagram depicts the average direction from which the wind blows (in percentages), and the average wind speeds.
To locate the Wind Rose Diagram for your area, see the U.S. Department of Agriculture (USDA) Natural Conservation Service’s National Water and Climate web site. This site has a link to Wind Rose (ftp plot) for states and weather stations.
The National Renewable Energy Lab site:
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