At most locations, the winds blow more frequently from one direction than others. These prevailing winds are represented by a wind rose (shown below from Welaka WeatherSTEM unit in Putnam County, FL), which indicates the percentage of time wind blows from certain directions.
Prevailing winds can affect the climate of a region by supplying more moisture for the development of clouds, fog and precipitation. Prevailing winds can also affect things like factories, airports, and insect and plant spore movements.