Wind rose 2

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A wind rose diagram showing the relative frequency of directions from where the wind is coming from, and the relative frequency of the windspeed. For example, approximately 2% of observations have wind directly from the west, with 15 kts < speed <=21 kts.

A better wind rose

These scripts extend what was offered in windrose, where you can obtain sfo1998.dat. Here are the scripts to make the wind rose seen here: