Cold wind vs. warm wind

[a&p cfiguy]

Is there a difference? Cold air is thicker than warm air. Airplane gets better performance in cold air because it's thicker. But what about wind speed? Is a 20 knot wind in cold weather stronger than a 20 knot wind in warm weather? Put it this way, is it harder to land in a 20 knot crosswind in the dead of winter than it is in the summer? At first I though so, but then I'm thinking wind speed is a measurement taken by a spinning instrument. The air may be thinner in the summer, but it's still moving that instrument at the same speed, so shouldn't there be the same force of wind? Does it make a difference?

 

[Alex429595]

Think of it this way- it takes X number of molecules hitting the sensor to move the anenometer to 20mph, regardless of temperature.

 

[aucfi]

Think of it this way- it takes X number of molecules hitting the sensor to move the anenometer to 20mph, regardless of temperature.

Ill go out on a limb and create this term: True Wind Speed

 

[momike]

Research density altitude as well...