For those of us who work outside (pretty all encompassing in this audience!) it can be useful to know how humid it will feel on a given summer day.

Relative humidity really doesn’t tell you much since hot air can hold a very large amount of moisture. We have all heard people talk of 90 degrees Fahrenheit with 90% humidity but that almost never occurs. It can, but it is quite rare. Humidity of only 50% at 90 degrees is quite humid, yielding a dewpoint of 69F. So, what is dewpoint and what does it mean when the dewpoint is 69F?

The best measurement of how it feels is dewpoint. The National Weather Service defines dewpoint as “the temperature the air needs to be cooled to (at constant pressure) in order to achieve a relative humidity (RH) of 100%. At this point the air cannot hold more water in the gas form. If the air were to be cooled even more, water vapor would have to come out of the atmosphere in the liquid form, usually as fog or precipitation.

This report is specifically for the Arbor Doctor’s location 3.4 miles west of Cheviot, OH, in the western suburbs of Cincinnati in southwest Ohio. This location is also an official cooperative observation site for the National Weather Service listed as Cheviot 3W.

What is the Condition Monitoring Report? See these links for more information:

Explanation of scale bar>>>

Last 30 Day Precipitation:

Snow Cover U.S. and Northern Hemisphere >>>

Crop Condition and Soil Moisture Analytics Map:

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Search condition monitoring reports for the entire US>>>

Interactive	Condition Monitoring
Static	Watershed Maps

Click on the title or the graphic (above) to access the
U.S. Weekly Drought MonitorPDF Version of Graphic

Click on the title or the graphic (above) to access the
U.S. Monthly Drought OutlookPDF Version of Graphic

Click on the title or the graphic (above) to access the
U.S. Seasonal Drought OutlookPDF Version of Graphic

Other Drought links:

Please remember to water…correctly!

Water once per week, one inch per week, under the entire branch spread, in the absence of rain, May through November. Either rainfall or your watering should equal the one inch per week. Put out a sprinkler and a straight sided soup can or rain gauge and measure one inch per week.

To the extent possible recycle fallen leaves back into the soil around the trees and maintain mulch around the trees to a radius of at least 3-5 feet. Keep mulch off trunks. Use a coarse textured mulch. Avoid triple shredded mulch. Aged arborist wood chips, mulched and composted leaves, pine bark, and pine straw are all good. Very finely ground mulches such as triple ground hardwood mulch are not beneficial and may inhibit moisture and oxygen exchange.