Climate and monthly weather forecast
Dayton, TN

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Weather in January

January, like December, is a frosty winter month in Dayton, Tennessee, with an average temperature varying between 30.2°F (-1°C) and 45.1°F (7.3°C). January, on average, is the coldest month, registering a high temperature of 45.1°F (7.3°C) and a low of 30.2°F (-1°C). Weather in January »

Weather in February

The last month of the winter, February, is a cool month in Dayton, Tennessee, with temperature in the range of an average high of 50.4°F (10.2°C) and an average low of 33.8°F (1°C). The onset of February marks an average high-temperature of a fresh 50.4°F (10.2°C), hardly differing from January's 45.1°F (7.3°C). Weather in February »

Weather in March

The first month of the spring, March, is a refreshing month in Dayton, Tennessee, with an average temperature varying between 58.1°F (14.5°C) and 40.6°F (4.8°C). March introduces a minor temperature shift, with average high-temperatures adjusting from February's cool 50.4°F (10.2°C) to a mild 58.1°F (14.5°C). Weather in March »

Weather in April

April is an agreeable spring month in Dayton, Tennessee, with an average temperature varying between 68.5°F (20.3°C) and 48°F (8.9°C). Dayton's April weather shows an increase in high-temperatures, moving from March's mild 58.1°F (14.5°C) to a pleasant 68.5°F (20.3°C). Weather in April »

Weather in May

May, the last month of the spring in Dayton, is a warm month, with an average temperature ranging between max 77.5°F (25.3°C) and min 56.1°F (13.4°C). The start of May brings a rise in the average high-temperature, moving from an agreeable 68.5°F (20.3°C) in April to a moderately hot 77.5°F (25.3°C). Weather in May »

Weather in June

June, the first month of the summer in Dayton, is still a warm month, with an average temperature fluctuating between 84.9°F (29.4°C) and 62.8°F (17.1°C). June comes with a subtle rise, with the average high-temperature adjusting from a moderately hot 77.5°F (25.3°C) in May to a still warm 84.9°F (29.4°C). Weather in June »

Weather in July

July in Dayton, Tennessee, is a hot summer month, with an average temperature varying between 65.5°F (18.6°C) and 87.4°F (30.8°C). With average temperatures fluctuating between a high of 87.4°F (30.8°C) and a low of 65.5°F (18.6°C), July stands out as the warmest month. In July, the heat index is appraised at a very hot 102.2°F (39°C). Weather in July »

Weather in August

August, the last month of the summer in Dayton, is another tropical month, with temperature in the range of an average high of 86.5°F (30.3°C) and an average low of 64.6°F (18.1°C). A minor adjustment in Dayton's average high-temperature is noted with the start of August, touching a still hot 86.5°F (30.3°C) from July's 87.4°F (30.8°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Dayton, Tennessee, with an average temperature varying between 80.6°F (27°C) and 59.4°F (15.2°C). Dayton's transition into September involves a gentle shift in temperature, receding from a hot 86.5°F (30.3°C) in August to a warm 80.6°F (27°C). Weather in September »

Weather in October

October, the same as September, in Dayton, Tennessee, is another pleasant autumn month, with an average temperature fluctuating between 48.7°F (9.3°C) and 69.4°F (20.8°C). With the onset of October, Dayton experiences a modest temperature adjustment, with the average high-temperature receding from a warm 80.6°F (27°C) in September to an agreeable 69.4°F (20.8°C). Weather in October »

Weather in November

November, the last month of the autumn in Dayton, is another refreshing month, with an average temperature ranging between min 39.6°F (4.2°C) and max 56.8°F (13.8°C). Onset of November witnesses a reduction in the average high-temperature, falling from an agreeable 69.4°F (20.8°C) in October to a moderate 56.8°F (13.8°C). Weather in November »

Weather in December

The first month of the winter, December, is also a frosty month in Dayton, Tennessee, with temperature in the range of an average high of 49.1°F (9.5°C) and an average low of 35.2°F (1.8°C). As December arrives, Dayton's weather displays a minor decrease in high-temperatures, transitioning from November's mild 56.8°F (13.8°C) to a chilly 49.1°F (9.5°C). Weather in December »
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest in Dayton?

Dayton experiences its average lowest temperatures in January, reaching a peak of 45.1°F (7.3°C) and a minimum of 30.2°F (-1°C).

What is the least humid month in Dayton?

January, June through November, with an average relative humidity of 76%, are the least humid months in Dayton, Tennessee.

How much does it rain in Dayton?

Throughout the year, in Dayton, there are 163.6 rainfall days, and 37.44" (951mm) of precipitation is accumulated.

When does it snow in Dayton?

January through April, November and December are months with snowfall in Dayton, Tennessee.

What is the snowiest month in Dayton?

January is the month with the most snowfall. Snow falls for 2.8 days and accumulates 0.67" (17mm) of snow.

How many days does it snow in Dayton?

Throughout the year, there are 8.2 snowfall days, and 2.01" (51mm) of snow is accumulated.

When is the lowest UV index in Dayton?

The months with the lowest UV index are January, February and December, with an average maximum UV index of 2.

When is Daylight Saving Time (DST) in Dayton?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

When it does not snow in Dayton?

May through October are months without snowfall.

What are the months with the highest UV index in Dayton?

The months with the highest UV index in Dayton, Tennessee, are May through August, with an average maximum UV index of 6.

When are the longest days in Dayton?

The month with the longest days in Dayton is June, with an average of 14h and 30min of daylight.

What month has the most sunshine in Dayton?

The month with the most sunshine is June, with an average of 10.2h of sunshine.

What are the warmest months in Dayton?

July, known for its average high temperature of 87.4°F (30.8°C) and an average low temperature of 65.5°F (18.6°C), is the warmest month.

What is the wettest month in Dayton?

The month with the most rainfall is July, when the rain falls for 17.9 days and typically aggregates up to 3.94" (100mm) of precipitation.

What is the driest month in Dayton?

November is the month with the least rainfall in Dayton. Rain falls for 8.8 days and accumulates 2.28" (58mm) of precipitation.

What is the most humid month in Dayton?

The most humid month in Dayton is December, with an average relative humidity of 80%.

What is the month with the shortest days in Dayton?

The month with the shortest days in Dayton, Tennessee, is December, with an average of 9h and 48min of daylight.

What is the month with the least sunshine in Dayton?

December has the least sunshine of the year, with an average of 4.8h of sunshine.

Average temperature
Dayton, TN

Average temperature - Dayton, TN

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (45.1°F).

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).

Average pressure
Dayton, TN

Average pressure - Dayton, TN

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed
Dayton, TN

Average wind speed - Dayton, TN

The windiest months (with the highest average wind speed) are February and April (6.6mph).
The calmest months (with the lowest average wind speed) are July and August (4mph).

Average humidity
Dayton, TN

Average humidity - Dayton, TN

The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are January, June, July, August, September, October and November (76%).

Average rainfall
Dayton, TN

Average rainfall - Dayton, TN

The wettest month (with the highest rainfall) is July (3.94").
The driest month (with the least rainfall) is November (2.28").

Average rainfall days
Dayton, TN

Average rainfall days - Dayton, TN

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is November (8.8 days).

Average snowfall
Dayton, TN

Average snowfall - Dayton, TN

The month with the highest snowfall is January (0.67").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days
Dayton, TN

Average snowfall days - Dayton, TN

The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight / Average sunshine
Dayton, TN

Average daylight / Average sunshine - Dayton, TN

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

Average sunshine days
Dayton, TN

Average sunshine days - Dayton, TN

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (10.8 days).

Average UV index
Dayton, TN

Average UV index - Dayton, TN

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average visibility
Dayton, TN

Average visibility - Dayton, TN

The months with the highest visibility are February, June, October and November (6mi).
The months with the lowest visibility are January, March, April, May, July, August, September and December (5mi).

Dayton, Tennessee, USA

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