You might check the forecast and see 40% relative humidity in the afternoon, then step outside and feel sticky and ...

image: Meteorologists often report the amount of moisture in the air as relative humidity or dew point. These measures can be confusing to people who are just trying to determine if the weather ...

Meteorologist Paul Douglas answers reader questions about the weather and other natural phenomena every couple of weeks.

“It’s not the heat, it’s the humidity,” we complain. Even though it’s something so tangible and familiar to us, humidity can be an awfully tricky thing to understand. There’s more than one way to ...

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 ...

(via SciShow) Have you ever wondered why 75% humidity in the summer feels sticky, but 75% humidity in the winter feels super dry? Turns out, the common definition of humidity is inconvenient and ...

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 ...

Dew point is the temperature at which the air becomes “saturated” – in other words, it is holding all the water vapor it possibly can. If the temperature and the dew point equal each other, the water ...

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Relative humidity and dew point both give us an idea of the amount of moisture in the atmosphere; however, only dew point is a true measurement of the atmospheric moisture. Relative humidity is ...

Meteorologists often report the amount of moisture in the air as relative humidity or dew point. These measures can be confusing to people who are just trying to determine if the weather outside will ...