This document discusses 5 common weather instruments - thermometer, hygrometer, wind vane, anemometer, and barometer - and what each measures (temperature, humidity, wind direction, wind speed, and air pressure, respectively) along with the units used. It provides a review table summarizing the instrument, measurement factor, and units for each.

1. WEATHER
INSTRUMENTS

2. THERMOMETER
• MEASURES TEMPERATURE
• UNITS USED: CELSIUS

3. HYGROMETER
• MEASURES HUMIDITY
• RELATIVE HUMIDITY
• UNITS USED: PERCENTAGE

4. WIND VANE
• MEASURES WIND DIRECTION
• UNITS USED: COMPASS POINTS
N/S/E/W

5. ANEMOMETER
• MEASURES WIND SPEED
• UNITS USED: KM/HOUR

6. BAROMETER
• MEASURES AIR PRESSURE
• UNITS USED: MILLIBARS

7. WEATHER INSTRUMENTS
REVIEW
INSTRUMENT FACTOR IT MEASURES UNITS USED
THERMOMETER TEMPERATURE DEGREES CELSIUS
HYGROMETER HUMIDITY (RELATIVE) PERCENTAGE
WIND VANE WIND DIRECTION COMPASS PTS (N/S/E/W)
ANEMOMETER WIND SPEED KILOMETER/HOUR
BAROMETER AIR PRESSURE MILLIBARS