Forget relative humidity, let's talk dew points

4:23 PM, Jul 8, 2013   |    comments
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GOLDEN VALLEY, Minn. - Recent humid weather is a delight for some, but a sticky mess for others.

When watching the forecast, it's best to pay attention to the dew points rather than the relative humidity.

The relative humidity, a percentage that breaks down the relationship between moisture and temperature. As the temperature goes up throughout the day, the humidity reading goes down.

The dew point only measures moisture in the air. It doesn't factor in temperature. This is why the dew point is a much better representation of how muggy it feels.

Monday's dew point went up throughout the day, which is why it felt muggier on Monday afternoon than it did on Monday morning even though the relative humidity dropped significantly throughout the day.

When the dew points are in the 40s and 50s, the air is comfortable for most people.

In the middle 60s is when we can start to feel the stickiness.

By the time it reaches upper 60s it feels muggy and dew points in the 70s or higher feel very tropical and unpleasant for some people.

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