What is Wet Bulb Temperature?
The numbers in our snowmaking chart are wet bulb numbers. Web bulb is the lowest temperature that can be obtained by evaporating water into the air at a constant pressure. The term comes from the technique of wrapping a wet cloth around a mercury bulb thermometer and blowing air over the cloth until the water evaporates. The wet bulb temperature is always lower than the dry bulb temperature (temperature measured without a wet cloth) in the same surroundings. The wet bulb and dry bulb temperatures can be used to calculate dew point or relative humidity. When using the chart it is important to take into account not just the temperature but the humidity as well. We offer a weather station that shows both outdoor temp and outdoor humidity.
