Climate and monthly weather forecast
Dayton, VA

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Weather in January

January, the same as December, is another cold winter month in Dayton, Virginia, with an average temperature varying between 23.4°F (-4.8°C) and 38.8°F (3.8°C). January stands out as Dayton's coldest month, with an average high-temperature of 38.8°F (3.8°C) and a low-temperature of 23.4°F (-4.8°C). Weather in January »

Weather in February

February, the last month of the winter in Dayton, is a chilly month, with an average temperature varying between 26.1°F (-3.3°C) and 43.5°F (6.4°C). As January transitions into February, the average high-temperature rests at a frosty 43.5°F (6.4°C), maintaining a close resemblance to the previous month. Weather in February »

Weather in March

March, the first month of the spring in Dayton, is a fresh month, with an average temperature varying between 32.5°F (0.3°C) and 51.4°F (10.8°C). March's arrival coincides with a subtle temperature rise, moving from February's frosty 43.5°F (6.4°C) to a fresh 51.4°F (10.8°C). Weather in March »

Weather in April

April is a refreshing spring month in Dayton, Virginia, with an average temperature varying between 42.1°F (5.6°C) and 62.6°F (17°C). Dayton in April shows a temperature shift, moving from an average high of a fresh 51.4°F (10.8°C) in March to a comfortable 62.6°F (17°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Dayton, Virginia, with an average temperature ranging between min 51.3°F (10.7°C) and max 72.1°F (22.3°C). The shift into May is marked by a rise in the average high-temperature, moving from April's enjoyable 62.6°F (17°C) to an agreeable 72.1°F (22.3°C). Weather in May »

Weather in June

June, the first month of the summer in Dayton, is a warm month, with an average temperature fluctuating between 57.6°F (14.2°C) and 79.7°F (26.5°C). A subtle rise in the average high-temperature is observed during June, adjusting from a pleasant 72.1°F (22.3°C) in May to a moderately hot 79.7°F (26.5°C). Weather in June »

Weather in July

July, like June, in Dayton, Virginia, is another warm summer month, with an average temperature varying between 61.9°F (16.6°C) and 83.8°F (28.8°C). Dayton notes the warmest temperatures in July, with a high average of 83.8°F (28.8°C) and a low of 61.9°F (16.6°C). For most parts of July, the heat index is calculated to be a tropical 91.4°F (33°C). Weather in July »

Weather in August

August, the last month of the summer in Dayton, is also a moderately hot month, with temperature in the range of an average low of 60.1°F (15.6°C) and an average high of 82°F (27.8°C). Dayton marks the arrival of August with an average high-temperature of a still moderately hot 82°F (27.8°C), hardly different from July's 83.8°F (28.8°C). Weather in August »

Weather in September

September, the first month of the autumn in Dayton, is still a warm month, with an average temperature ranging between min 54.5°F (12.5°C) and max 75.4°F (24.1°C). September's arrival aligns with a minor decrease in average high-temperatures, from August's moderately hot 82°F (27.8°C) to a still warm 75.4°F (24.1°C). Weather in September »

Weather in October

October, like September, in Dayton, Virginia, is another comfortable autumn month, with an average temperature fluctuating between 45.1°F (7.3°C) and 63.7°F (17.6°C). October weather is marked by a drop in the average high-temperature, falling from a warm 75.4°F (24.1°C) in September to an enjoyable 63.7°F (17.6°C). Weather in October »

Weather in November

November, the last month of the autumn in Dayton, is another cool month, with an average temperature ranging between max 52.2°F (11.2°C) and min 34°F (1.1°C). During Dayton's transition into November, the average high-temperature lessens, moving from a comfortable 63.7°F (17.6°C) in October to a fresh 52.2°F (11.2°C). Weather in November »

Weather in December

The first month of the winter, December, is still a chilly month in Dayton, Virginia, with an average temperature fluctuating between 43.7°F (6.5°C) and 28.9°F (-1.7°C). The transition to December results in a modest reduction in average high-temperature, moving from a cool 52.2°F (11.2°C) in November to a chilly 43.7°F (6.5°C). Weather in December »
Updated: Jul 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest in Dayton?

The coldest month is January, with an average high-temperature of 38.8°F (3.8°C) and an average low-temperature of 23.4°F (-4.8°C).

What is the least humid month?

The months with the lowest humidity are January and July, with an average relative humidity of 74%.

How many days does it rain?

In Dayton, during the entire year, the rain falls for 167.3 days and collects up to 30.35" (771mm) of precipitation.

When does it snow?

January through May, October through December are months with snowfall.

How much does it snow?

Throughout the year, there are 23.3 snowfall days, and 16.89" (429mm) of snow is accumulated.

What is the month with the lowest UV index?

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

What is the snowiest month?

March is the month with the most snowfall. Snow falls for 4.8 days and accumulates 4.45" (113mm) of snow.

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.

What are the most humid months?

May, September and October, with an average relative humidity of 78%, are most humid months.

What is the wettest month?

The month with the most rainfall is May, when the rain falls for 18.9 days and typically aggregates up to 3.46" (88mm) of precipitation.

When it does not snow?

In Dayton, snow does not fall in June through September.

When are the longest days in Dayton?

With an average of 14h and 48min of daylight, June has the longest days of the year.

What are the months with the highest UV index?

June and July, with an average maximum UV index of 6, are months with the highest UV index.

What is the hottest time of year?

Dayton experiences its average highest temperatures in July, reaching a peak of 83.8°F (28.8°C) and a minimum of 61.9°F (16.6°C).

What month has the most sunshine?

With an average of 10.5h of sunshine, July has the most sunshine of the year.

What is the driest month?

November is the month with the least rainfall. Rain falls for 9 days and accumulates 1.77" (45mm) of precipitation.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 30min of daylight.

What is the month with the least sunshine?

With an average of 5.3h of sunshine, December has the least sunshine of the year.

Average temperature
Dayton, VA

Average temperature - Dayton, VA

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (38.8°F).

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

Average pressure
Dayton, VA

Average pressure - Dayton, VA

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed
Dayton, VA

Average wind speed - Dayton, VA

The windiest months (with the highest average wind speed) are February and April (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

Average humidity
Dayton, VA

Average humidity - Dayton, VA

The months with the highest relative humidity are May, September and October (78%).
The months with the lowest relative humidity are January and July (74%).

Average rainfall
Dayton, VA

Average rainfall - Dayton, VA

The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is November (1.77").

Average rainfall days
Dayton, VA

Average rainfall days - Dayton, VA

The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is November (9 days).

Average snowfall
Dayton, VA

Average snowfall - Dayton, VA

The month with the highest snowfall is March (4.45").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Dayton, VA

Average snowfall days - Dayton, VA

The month with the highest number of snowfall days is January (6.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Dayton, VA

Average daylight / Average sunshine - Dayton, VA

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

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

Average sunshine days
Dayton, VA

Average sunshine days - Dayton, VA

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (9.9 days).

Average UV index
Dayton, VA

Average UV index - Dayton, VA

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

Average visibility
Dayton, VA

Average visibility - Dayton, VA

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

Dayton, Virginia, USA

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