Pro 🔒~10 min
Weather Measurement
Temperature, wind speed, precipitation, and humidity instruments
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How it works
Meteorologists use instruments to measure weather: thermometers measure air temperature; anemometers measure wind speed (spinning cups catch the wind); rain gauges collect and measure precipitation; hygrometers measure humidity (moisture in the air). Weather changes day to day but follows patterns by season. Temperature is measured in Celsius (°C) or Fahrenheit (°F). Wind speed is measured in km/h or mph. Precipitation is measured in millimeters of water collected. By recording weather data over time, you can spot patterns and make predictions.
Step-by-step
- Adjust the weather conditions using sliders and watch each instrument respond.
- The thermometer level changes, the anemometer spins faster or slower, the rain gauge fills, and the hygrometer needle moves.
- Record readings in the data table.
Frequently asked questions
- If the temperature drops and humidity is high, what might happen?
- Fog, dew, or frost might form — when air cools to its dew point, water vapor condenses.
- Why does the anemometer spin faster when wind speed increases?
- The cups catch more wind force, pushing them around faster — the spin rate is proportional to wind speed.