Humid cities · Ohio
How humid is Dayton in summer?
Dayton right now
42°FClear skies
- Today46°F / 42°FClouds
- Tomorrow45°F / 40°FClouds
- Monday48°F / 35°FClouds
Sky's showing off.
Live from OpenWeatherMap. Alerts from the National Weather Service.
Across June, July and August, the dew point in Dayton averages about 61.8°F, which is sticky on the usual dew point scale.
July is the muggiest month, with the dew point averaging about 63.4°F. On NOAA’s hour by hour normals, about 20 hours, under 1% of the year, average a dew point of 65°F or more. That makes it the joint 52nd most humid summer of the 124 US cities we track.
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The highest dew point in the forecast for the next 48 hours is about 38°F, which is dry.
Dayton’s summer dew point averages about 61.8°F. The birthplace of aviation, where the air is a bit too heavy for it in July.
Live 48-hour forecast from OpenWeatherMap, refreshed about every half hour. Alerts from the National Weather Service.
Summer humidity at a glance
| Dew point, June to August | 61.8°F |
|---|---|
| Muggiest month | July, 63.4°F |
| Hours a year at a 65°F dew point or more | 20 (under 1%) |
| How summer feels | sticky |
The dew point is the temperature the air would have to cool to for dew to form, so the higher it is, the more water the air holds. Forecasters usually call under 55°F comfortable, 55 to 65°F sticky and 65°F or more muggy; 70°F or more feels tropical.
Cities with about the same summer air
- Columbus, Ohio: about 61.8°F
- Fort Wayne, Indiana: about 61.7°F
- Waterloo, Iowa: about 61.7°F
More about the weather here
Source: NOAA U.S. Climate Normals, hourly, 1991 to 2020, station USW00093815. Average dew points, not the stickiest days.