– Why is the humidity level at 74% but with a dew point at -3c? Does this mean low moisture or will opening my windows let in more humidity?

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I’m really confused because the overall stated level on the weather app is 74%, which makes me think there’s lots of water in the air. Doesn’t seem right as it’s cold but also not foggy and clear as day.

I’ve had a mildew problem and I want to open the windows to keep airing out the room more often, but I don’t want to let in any added moisture.

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Anonymous 0 Comments

Air at -5 C and 70% relative humidity would have absolute humidity of 2.4 grams of water vapor per cubic meter. Warming that volume to 25 C, the absolute humidity would remain the same, but the relative humidity would be about 10%.

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