Weather

Dew Point

The dew point from temperature and humidity — a muggy-ness gauge.

How it works. Magnus formula: γ = ln(RH⁄100) + aT⁄(b+T); dew point = bγ⁄(a−γ), with a = 17.625, b = 243.04 °C. Above ~16 °C (60 °F) dew point starts to feel humid; above 21 °C (70 °F) is oppressive.