Weather Vocabulary

A large body of air that has properties similar to the part of the Earth over which it forms.

• air mass
• air chunk
• air body
• air matter

A weather instrument used to measure wind speed in miles per hour.

• wind vane
• anemometer
• barometer
• thermometer

A weather instrument used to measure air pressure in inches of mercury or millibars (mb).

• anemometer
• wind vane
• barometer
• hygrometer

A boundary between two air masses of different temperature, moisture, or density.

• air mass
• barometer
• front
• line

The amount of water vapor (moisture) in the air.

• humidity
• temperature
• air pressure

Aa weather instrument that uses internal circuitry or devices to determine relative humidity.

• hygrometer
• barometer
• wind vane
• thermometer

A line of constant pressure on a weather map.

• isobar
• isotherm

A line of constant temperature on a weather map.

• isobar
• isotherm

A person who studies day-to-day weather.

• climatologist
• meteorologist

The amount of water vapor in the air as a percentage of the maximum amount of water vapor the air could hold at that temperature.

• relative humidity
• temperature
• air pressure