Humid cities · Tennessee
How humid is Nashville in summer?
Across June, July and August, the dew point in Nashville averages about 66.4°F, which is muggy on the usual dew point scale.
July is the muggiest month, with the dew point averaging about 68°F. On NOAA’s hour by hour normals, about 1,843 hours, about 21% of the year, average a dew point of 65°F or more. That makes it the joint 27th 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 35°F, which is dry.
Nashville’s summer dew point averages about 66.4°F, and July takes it to about 68. The hats are cowboy, the air is sauna.
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 | 66.4°F |
|---|---|
| Muggiest month | July, 68°F |
| Hours a year at a 65°F dew point or more | 1,843 (21%) |
| How summer feels | muggy |
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
- Charlotte, North Carolina: about 66.4°F
- Knoxville, Tennessee: about 66.2°F
- Richmond, Virginia: about 66.2°F
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Source: NOAA U.S. Climate Normals, hourly, 1991 to 2020, station USW00013897. Average dew points, not the stickiest days.