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What is the purpose of having a dew point in the winter? If the temperature reached the dew point and it was still below what happens?

April 26, 2017dew happens point purpose temperature winter

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What is the purpose of having a dew point in the winter? If the temperature reached the dew point and it was still below what happens?

2 Answers

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The purpose of having a dew point in the winter is the same as it is in the summer. We want to see how much moisture is in the air even in the winter. If the spread between the dew point and the temperature is small then the air is moist, if the spread is large, the air is dry. The more moisture the air has, the greater the risk of fog, rain or snow. If the dew point is below zero and the air temperature reaches the dew point then the precipitation will be in the form of snow.

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Posted

The purpose of having a dew point in the winter is the same as it is in the summer. We want to see how much moisture is in the air, even in the winter. If the spread between the dew point and the temperature is small, then the air is moist; if the spread is large, the air is dry. The more moisture the air has, the greater the risk of fog, rain or snow.