I just launched an update on my Wind History project at windhistory.com. The big new feature is month filtering. You can now choose to look at prevailing winds for a specific month or animate a map of the shifting winds over the year. Try it out in the Bay Area, you can clearly see how the winds change in the winter. The rotating Kansas winds are interesting, too.
I also snuck in a couple of minor changes. The main map page now uses the geolocation API to initially position the map near where you are. And I improved the station page a bit, adding some much-needed tick marks on the radial axis.