Humidity indicates the likelihood for precipitation, dew, or fog to be present. Humidity depends on the temperature and pressure of the system of interest. The same amount of water vapor results in higher relative humidity in cool air than warm air. A related parameter is the dew point.

Jul 3, 2024 · Humidity is a key factor in weather forecasts, indoor comfort and even health. There are various ways to measure humidity, each providing different insights into the amount of moisture in the air.

Nov 8, 2022 · Find out what the humidity percentage means, the difference between relative and absolute humidity, and how high humidity affects our lives.

Jul 11, 2025 · In this guide, we’ll explain what relative humidity really means, how to calculate it (yes, you can!), and how to read it using a helpful chart. Plus, we’ll show you how to build a simple tool called a sling psychrometer to measure it yourself.

Relative humidity measures the amount of water in the air in relation to the maximum amount of water vapor (moisture). The higher the temperature, the more water vapor the air can hold.

Raleigh's humidity levels vary throughout the year. The highest levels occur in August, reaching 78% (high), while the lowest is recorded in April at 61%. Throughout the year, the average humidity in Raleigh is 70%. Humidity plays an important role in how temperatures are felt.

Jul 22, 2025 · Humidity is a measure of water vapor in the air. Meteorologists typically describe water vapor in the atmosphere in two different ways: absolute humidity and relative humidity.

Oct 19, 2023 · Humidity is the amount of water vapor in a given volume of air. Knowing exactly how much water is in the air in specific regions is essential for accurate weather forecasts.

Relative humidity, expressed as a percent, is a measure of the amount of water vapor that air is holding compared the the amount it can hold at a specific temperature.

Jul 9, 2025 · Humidity, the amount of water vapour in the air. It is the most variable characteristic of the atmosphere and constitutes a major factor in climate and weather.