The first question is probably what is a wind rose? Take a look at the graph to see an example of a wind rose. Now you probably want one for your location. Start at the Iowa State University IEM Site Information page. Select a network based on your state. Click switch network to change the map. You can then select a station by double clicking a dot or using the drop down menu. Once you click select a station you get a new page. Click the Wind Roses tab to get a selection of wind roses. You’ll get a total data one and ones for each month of the year. Each wind rose graph has a link to view the raw data, which can be downloaded. You can also generate a custom wind rose by clicking the Custom Wind Roses tab. Climate.gov has some information about the wind roses at Wind Roses from airports around the world – Graphics or Raw Data Tables.
