Dayton (TN) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Dayton.
Climate overview of Dayton
The climate in Dayton, Tennessee, United States of America, is marked by large temperature swings across the seasons, ranging from 31°C (88°F) in August to 8°C (46°F) in January.
The city receives considerable rain/snowfall, with around 1419 mm (56 in) annually. December is the wettest month. It has very warm summers and cold winters. May is the sunniest month, averaging 9.2 hours of sunshine per day.
Dayton Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Dayton - and find the best time to visit.
Monthly Temperature in Dayton
In Dayton, temperatures differ significantly between summer and winter months. Typically, average maximum daytime temperatures range from a very warm 31°C (88°F) in August to a chilly 8°C (46°F) in the coolest month, January.
Nights vary from 19°C (66°F) in August to around -3°C (27°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Dayton
Dayton experiences significant rain/snowfall throughout the year, averaging 1419 mm (56 in) of precipitation annually. Dayton offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between the wettest month December (166 mm (6.5 in)) and the driest month February (92 mm (3.6 in)) is not too significant. For more details, please visit our Dayton Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Dayton
For those who appreciate different seasons, Dayton serves as an ideal destination. Expect longer, more sun-filled days in May with an average of 9.2 hours of sunshine daily, and embrace the darker days in December, offering only 4.7 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Dayton by Month
The relative humidity is high throughout the year in Dayton.
The city experiences its highest humidity in September, reaching 77%. In April, the humidity drops to its lowest level at 63%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Dayton
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: April, May, September and October
- Warmest weather: June, July and August
- Most sunshine: May, June and July
- Seasonal pattern: Very warm summers and cold winters
- Coldest conditions: January, with freezing nights around -3°C (27°F).
Frequently asked questions about the climate in Dayton
What is the best time to visit Dayton?
April, May, September and October typically offer the most optimal weather in Dayton. In contrast, January, February and December tend to have less optimal conditions. Dayton has very warm summers and cold winters.
What temperatures can I expect in Dayton?
Daytime highs range from 8°C (46°F) in January to 31°C (88°F) in August. Nighttime lows range from -3°C (27°F) to 19°C (66°F). Temperatures vary considerably through the year.
How much rain does Dayton get?
Annual rainfall is around 1419 mm (56 in). December is the wettest month with 166 mm (6.5 in), while February is the driest with 92 mm (3.6 in).
How sunny is Dayton?
Dayton receives around 2,580 hours of sunshine per year. May is the sunniest month with 277 hours, while December is the cloudiest with just 142 hours. Overall, Dayton enjoys abundant sunshine.
Dayton 3-Day Forecast
Dayton on the map
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Popular this month
Where to go in August - average daytime high across popular destinations.
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