The ten letter word in an Anemometer, unless you are thinking of Wind Vane (which is two words)
It is a meterstick!
centimeter
No. The instrument used to measure wind speed is an anemometer.
The instrument which is used to measure snowfall is called a snow gauge.
A thermometer
There is no single instrument for either of these things
The instrument used to measure humidity is called a hygrometer.
The instrument used to measure humidity is called a hygrometer.
A protractor is used to measure an angle.
A protractor can be used to measure an angle.
This instrument is a balance.
The instrument you are looking for is a compass