Dew point/relative humidity questions come up fairly often and this is a good one. Water vapor in the atmosphere is pretty important for deep-sky observing and photography. The atmosphere can only ...

With summer here, one component of our daily weather can make or break our enjoyment of the season, and that's the humidity. So, exactly what is humidity, what do the different values of it really ...

DEHUM: The basic operating principle of a dehumidifier is to remove water vapor from the air without overcooling the space. April 20, 2026 Humidity, aside from temperature, is perhaps the most ...

Meteorologist Paul Douglas answers reader questions about the weather and other natural phenomena every couple of weeks. Submit your own questions below. I’ve lived in other parts of the country, and ...

Music fans gather at the Minnesota Country Club Festival in St. Paul on July 10. As meteorologists, one of the questions we hear all the time is: “Why don't you talk about relative humidity?” After ...

There are various ways to measure the amount of water vapor in the atmosphere. The amount of moisture a given parcel of air can hold is dependent on the ambient temperature. Higher temperatures mean ...