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DEW POINT AND HUMIDITY

BEST ANIMATION I COULD FIND

FOR YOUR NOTEBOOK:

  • Dew point - the temperature at which water vapor in the air condenses into liquid water, such as in the form of dew, fog, mist, clouds, frost, or possibly rain. The dew point is always lower or equal to the air temperature, hence why dew or fog often occurs during the early morning hours, when the air temperatures are typically lowest in comparison to the dew point.

    • The higher the dew point, the greater the amount of moisture in the air

    • The higher the dew point, the muggier it will feel

      • ≤ 55: dry and comfortable

      • 55 - 65: becoming “sticky” with muggy evenings

      • ≥ 65: lots of moisture in the air, becoming oppressive

  • Relative Humidity - how close the air is to saturation

    • < 40%: it feels dry outside

    • 40 - 80%: comfortable if the temperature is also comfortable

    • > 80%: it feels moist outside

  • Key Concept:  When the air is saturated, it means that it's 100% filled with moisture.  If the temperature of the air drops, the mass of air can't hold all the moisture, so water droplets will leave the air due to condensation.  THE TEMPERATURE LOWERS, LEAVING DUE AS "RESIDUE."

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