What is high humidity? If your Relative Humidity (RH) is 50% or greater, you can guarantee a high humidity day! RH, shown as a percentage, measures the amount of water vapor in the air relative to how much the air can hold.

So, high humidity is more common in warmer climates? While warm air often holds more moisture than colder air, this is not always true!

As temperatures drop, so does your air’s ability to hold water vapor, yet RH levels are often higher in colder areas despite less actual moisture in the air. It only takes a small amount of water vapor to saturate the air at lower temperatures, and because colder air has low moisture-holding capacity, high humidity is relatively common. This phenomenon indicates why colder climates rank as some of the most humid states.

Most Humid States, Ranked

Take a look at the top ten ‘most humid states’—you might be surprised to see that our most northern state is at the top!

That’s right: Alaska is one of the most humid states! In fact, Alaska reports an average RH of 77%, with the next highest state, Florida, reporting a 74% average. Despite Florida being hot and balmy, Alaska has high humidity levels because of its milder, lower temperatures. Remember: It only takes a small amount of water vapor to saturate colder air!

Combatting High Humidity, No Matter Where You Live

We aren’t able to do much about the heaviness of the air outside, but we can take a stand against high humidity indoors! With an AprilAire Whole-House Dehumidifier, you can enjoy the following health and home benefits and protect yourself from high humidity during the summertime.

Better Health

When plagued with high humidity, AprilAire Whole-House Dehumidifiers can help you breathe easier by reducing respiratory system irritation. In addition, they help you feel more comfortable by reducing the concentration of allergens, like dust mites, mold, and mildew, and toxins, like formaldehyde, that thrive in environments with high humidity levels.

Less Home Damage

High humidity can cause mold growth and attract pests like termites. Dehumidifiers can help prevent decay and corrosion caused by those pests while reducing the chances of mold growth on your furniture, clothing, and linens.

Increased Savings

Dry air feels cooler, and with the help of a dehumidifier, you can use your air conditioner less often while maintaining desired low temperatures. Because they help A/C units run more efficiently, dehumidifiers can lower energy costs and prolong lifespan by removing moisture from the air.

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