2 The “Dry Bulb” Don’t let it fool you. It is just a thermometer. It measures the air temperature.Duh!20°C
3 The “Wet Bulb” Has a little wet booty tied to the bottom. Gets cool when water evaporates.12°CWet Booty
4 A Dry Day… A lot of moisture will evaporate. The wet bulb will be a lot cooler than the dry bulb.20°C20°C14°C12°C8°CDifference between wet bulb & dry bulb is 12 °C.
5 A Humid Day… A little bit of moisture will evaporate. The wet bulb will not be much cooler than the dry bulb.20°C14°CDifference between wet bulb & dry bulb is 6 °C.
6 Page 12 of your Handy Dandy Earth Science Reference Tables Warning #1: Be sure to READ the correct chart: DPT or RHWarning #2: Dew Point Temperature IS NOT “Difference between wet bulb and dry bulb”.Warning #3: The wet bulb temp IS NOT the DPT.
7 Dry-bulb temperature is your air temperature. 20 °C