How is wind direction measured?

Wind direction is one of the most recorded measurements in meteorology today.  However, it still carries a bit of confusion. Meteorologically speaking, the wind direction is the direction that the wind is coming from, not the direction it is blowing to. The wind is measured in terms of degrees (going clockwise) with zero representing north. 

There is also the question of whether we measure wind from true north or magnetic north. The answer is true north, and this is an important distinction to make. The difference between true and magnetic north can be as much as 25 degrees in some places, which is enough to produce significant errors.