What is the unit of measurement used for wind speed?

The unit of measurement commonly used for wind speed in aviation and meteorology is the knot. A knot is defined as one nautical mile per hour, which is equivalent to approximately 1.15 miles per hour or 1.69 feet per second. This unit is particularly relevant in maritime and aviation contexts because it is based on the nautical mile, which takes the curvature of the Earth into account, making it more appropriate for navigation over water and in the air. While miles per hour and feet per second are also units used in various contexts, they are less standardized for aviation purposes compared to knots. Psi, short for pounds per square inch, measures pressure and is not relevant in the context of wind speed.