1. How do we measure the weather?

2. Weather The daily atmospheric conditions
Includes temperature, pressure, wind speed and direction, relative humidity, and precipitation.

3. Temperature
Thermometer: Degrees Fahrenheit or Degrees Celsius.

4. Pressure
A barometer measures atmospheric pressure in inches or millibars. Normal pressure at sea level is about 30 inches or 1013 millibars of pressure.

5. Wind Speed
Anemometer

6. Wind Direction
Wind Vane/Weather Vane. The pointer shows the direction of the wind.

7. Relative Humidity Psychrometer
Relative humidity is a measure of the amount of water in the air compared with the amount of water the air can hold at the temperature it happens to be when you measure it.
For example, you measure 20 grams of water vapor at room temperature. At room temperature the air can hold 40 grams of water vapor.
Relative humidity = 20 grams/40 grams = 0.5 * 100= 50% humidity.

8. Precipitation
Rain Gauge or Meter Stick (for snow and ice)