No, it’s an actual temperature. That’s why air moving through a metal nozzle from a compressor will accumulate condensation on it. Because it IS colder.
its easy to mix up the effects of compressing air and moving air
when its windy out, the air is not being compressed or decompressed to any significant level. The front between a high pressure area and a low pressure area produces strong winds, but the air is not changing pressure fast enough for PV=nRT to have an effect on air temperature.
its not the air moving across a nozzle in an AC unit that cools it, it the fact that the pressure is being reduced. If you reduce the pressure slowly in a big piston, the temp change will be the same. There is no factor for time in PV=nRT.
Humidity can be measured by putting a wet sock over a thermometer and exposing it to airflow, and comparing it to a dry thermometer in the same air. In dry air the water will evaporate off the wet sock faster, leaving cooler water atoms behind.
If you put a wet sock thermometer in the wind, next to a dry one, it will read a few degrees colder, but it will not read the perceived wind chill temperature.
Its an interesting subject, but its really a matter of how fast your metabolism can generate body heat, to replace the warmth being stripped off your bare skin by the wind. That resulting "it feels like...." number is very subjective from person to person. Thats whats on the wind chill factor chart.