Dew Point Chart Comfort
Most inhabitants of temperate areas will consider dew points above 21 c 70 f oppressive and tropical like while inhabitants of hot and humid areas may not find this uncomfortable.
Dew point chart comfort. A dew point of 10 to 15 green is very comfortable. That means if you hear someone say it is 90 degrees and 90 or 100 humidity they are absolutely wrong. Dew point comfort scale kristen willard 2 years ago.
This directly effects how comfortable it will feel outside. For example a temperature of 30 and a dew point of 30 will give you a relative humidity of 100 but a temperature of 80 and a dew point of 60 produces a relative humidity of 50. Answer view more anonymous.
Many times relative humidity can be misleading. For that to happen you would need a dew point temperature of 86 to 90 degrees. This defines the comfort zone which is portrayed on the psychrometric chart as shown below.
20 yellow is alright. The higher the dew point rises the greater the amount of moisture in the air. For example a temperature of 30 and a dew point of 30 will give you a relative humidity of 100 but a temperature of 80 and a dew point of 60 produces a relative humidity of 50.
In very warm humid conditions the dew point temperature can reach 75 to 77 degrees f but rarely exceeds 80 degrees. Many times relative humidity can be misleading. 15 to 18 light green is still comfortable.
Jesse dean april 20 2012 rocky mountain chapter ashrae technical conference. Once we get to 21 to 24 orange we start getting uncomfortable. Dewpoint comfort scale by l m.