Calculating Relative Humidity

Directions: Write the fraction then find the percentage.

• 1. There are 8 units of water in the air. At its current temperature, the air can hold 10 units of water. What is the relative humidity?

• 2. There are 24 units of water in the air. At its current temperature, the air can hold 25 units of water. What is the relative humidity?

• 3. In question 2, the air was holding 24/25 units of water. What would happen if it got colder?

Answers

• 1. There are 8 units of water in the air. At its current temperature, the air can hold 10 units of water. What is the relative humidity?

• 2. There are 24 units of water in the air. At its current temperature, the air can hold 25 units of water. What is the relative humidity?

• 3. In question 2, the air was holding 24/25 units of water. What would happen if it got colder?

810 100

80 = 80%

2425 100

96 = 96%

The drop in temperature would cause the air to hold less water and become saturated. At 24/24, it would precipitate. (Rain, Snow, Hail, Sleet or Fog)