Your ceiling fan should spin in a counterclockwise direction if you want to feel cooler in the summer. It should spin clockwise for a warming effect in the winter.

During summer, ceiling fans should spin in a counterclockwise direction. This pushes the air circulation in a downward breeze, which increases your air conditioner's energy efficiency.

Winds always rotate in a counterclockwise sense around hurricanes in the Northern Hemisphere. Winds in tornadoes usually rotate counterclockwise, but in perhaps five percent of tornadoes ...

The other 25 planets are nearly evenly spread out from 30° to 180°, with two orbiting almost opposite the direction of their star’s rotation.