DOES DEW POINT MEASURE HUMIDITY PROFESSIONAL

Yes, the mythical 90/90 day for air temperature and relative humidity is possible. The air temperature at the time was 108° F, making the relative humidity a relatively dry-sounding 68%. The highest dew point temperature ever recorded was 95° F on 8 July 2003 at Dhahran, Saudi Arabia.

You’re probably wondering now about the rest of the world. Let’s now take a look at what the air temperature (dry bulb) and relative humidity was for each of those: Here are the highest dew points recorded in the US: Relative humidity tells you how close you are to saturation (100% RH), which happens when the water vapor starts condensing out as you try to add more. Dew point is the quantity you have to look at for records because it actually tells you how much water vapor there is. Yes, meteorologists and climatologists keep records of such things as highest dew point.

And having relative humidity at 90% or higher is also possible, especially in the Eastern half. Yes, hitting temperatures in the 90s, even up to 98, is certainly possible in the majority of the United States. Last week I was speaking with a client in the mid-Atlantic who told me it gets up to 98° F and 95% relative humidity where he builds.

DOES DEW POINT MEASURE HUMIDITY PROFESSIONAL

That whole “relative” thing is a bit slippery, you know.įor example, I’ve had a building industry professional who deals with this stuff tell me that in his area, they regularly see both temperature and relative humidity in the 90s (Fahrenheit and percent, respectively). Why? Because relative humidity is misleading. My goal is to get more people thinking about humidity in terms of dew point rather than relative humidity. I’ve been on a bit of a mission for the past several years.

Does dew point measure humidity