Florida humidity: the numbers and what to do about them
Thirty years of NOAA records for five cities, plus practical guides: how humidity shows up in a home, how to measure it, and how to bring it down — in numbers, and Florida-specific.
The research
We pulled three decades of NOAA hourly records for five Florida cities and counted every oppressive day.
Read the full analysis →Humidity by city
Oppressive days per year — the number of days the dew point hits 75°F
Something’s wrong: symptoms
The signals that your air is too damp. Start here if something feels off but you don’t know what.
Where the damp smell comes from and how to track down the source.
Outside, inside, or between the panes: which side of the glass decides the diagnosis.
Three different problems behind one complaint, and a zero-dollar foil test to tell them apart.
Why the closet grows mold while the hygrometer in the room reads normal.
Droplets on the AC grille: usually not a malfunction, but a sign the house is too humid.
Understand and measure
The target numbers and how to reach them, in order.
Why it’s a more honest number than the percentage on your hygrometer.
The EPA threshold, and why the hygrometer on the wall doesn’t see everything.
Where to hang the sensor so you can trust the number.
Your AC and the season
It cools but doesn’t dry: why that happens and what to check.
Cools fast, shuts off before it has dried the air: short cycling and a damp house.
The most humid months, power outages, and how to prep the house.
Around the house
Why sleep is worse in a damp house and what to do about it.
Dust mites take their water straight from the air — what that means for the bedroom.
Palmetto bugs look for wet spots, not damp air: condensation, pipes, drip pans. Where to check.
An unconditioned box: rust, mold, and your tools.
Wood takes on moisture straight from the air: why doors stick in season and what to do.
Its own anatomy, its own rules: what’s different from a site-built house.
Enter your room size and how damp it is — get a pint recommendation tuned for Florida in seconds.