Climate and monthly weather forecast
Swannsylvania, TN

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Weather in January

January, the same as December, in Swannsylvania, Tennessee, is a frosty winter month, with temperature in the range of an average high of 44.2°F (6.8°C) and an average low of 28.6°F (-1.9°C). In Swannsylvania, January records the lowest average temperatures, peaking at 44.2°F (6.8°C) and reaching a low of 28.6°F (-1.9°C). Weather in January »

Weather in February

February, the last month of the winter in Swannsylvania, is another chilly month, with an average temperature varying between 49.5°F (9.7°C) and 32.5°F (0.3°C). The shift to February signals an average high-temperature of a still chilly 49.5°F (9.7°C), subtly varied from January's 44.2°F (6.8°C). Weather in February »

Weather in March

March, the first month of the spring in Swannsylvania, is a moderate month, with an average temperature fluctuating between 57.6°F (14.2°C) and 39°F (3.9°C). The shift into March is accompanied by a modest temperature increase, with the average high-temperature edging up from a frosty 49.5°F (9.7°C) in February to a moderate 57.6°F (14.2°C). Weather in March »

Weather in April

April is an agreeable spring month in Swannsylvania, Tennessee, with an average temperature varying between 68.5°F (20.3°C) and 46.9°F (8.3°C). The commencement of April sees a shift in the average high-temperature, moving from a mild 57.6°F (14.2°C) in March to an agreeable 68.5°F (20.3°C). Weather in April »

Weather in May

May, the last month of the spring in Swannsylvania, is a warm month, with an average temperature fluctuating between 77°F (25°C) and 54.9°F (12.7°C). Swannsylvania's transition into May is noticed by a slight rise in the average high-temperature, advancing from an agreeable 68.5°F (20.3°C) in April to a moderately hot 77°F (25°C). Weather in May »

Weather in June

The first month of the summer, June, is still a warm month in Swannsylvania, Tennessee, with an average temperature varying between 60.4°F (15.8°C) and 83.8°F (28.8°C). June brings a slight increase in the average high-temperature, progressing from a moderately hot 77°F (25°C) in May to a still warm 83.8°F (28.8°C). Weather in June »

Weather in July

July is a hot summer month in Swannsylvania, Tennessee, with an average temperature fluctuating between 64°F (17.8°C) and 87.1°F (30.6°C). July stands out as Swannsylvania's warmest month, with an average high-temperature of 87.1°F (30.6°C) and a low-temperature of 64°F (17.8°C). Throughout July, the heat index is evaluated at a sweltering 98.6°F (37°C). Weather in July »

Weather in August

August, the last month of the summer in Swannsylvania, is another tropical month, with an average temperature varying between 62.6°F (17°C) and 86.4°F (30.2°C). The arrival of August brings an average high-temperature of a still tropical 86.4°F (30.2°C), nearly identical to July's 87.1°F (30.6°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Swannsylvania, Tennessee, with an average temperature fluctuating between 80.4°F (26.9°C) and 58.1°F (14.5°C). The onset of September is marked by a minor decrease in temperature, transitioning from a hot 86.4°F (30.2°C) in August to a warm 80.4°F (26.9°C). Weather in September »

Weather in October

October, the same as September, in Swannsylvania, Tennessee, is an agreeable autumn month, with temperature in the range of an average low of 47.3°F (8.5°C) and an average high of 68.7°F (20.4°C). October weather is marked by a drop in the average high-temperature, falling from a warm 80.4°F (26.9°C) in September to a pleasant 68.7°F (20.4°C). Weather in October »

Weather in November

The last month of the autumn, November, is another mild month in Swannsylvania, Tennessee, with an average temperature fluctuating between 56.5°F (13.6°C) and 37.8°F (3.2°C). November comes with a drop in the average high-temperature, falling from October's pleasant 68.7°F (20.4°C) to a refreshing 56.5°F (13.6°C). Weather in November »

Weather in December

The first month of the winter, December, is still a chilly month in Swannsylvania, Tennessee, with an average temperature ranging between max 48.7°F (9.3°C) and min 34.5°F (1.4°C). A minor decrease in the average high-temperature is observed during December, shifting from a moderate 56.5°F (13.6°C) in November to a frosty 48.7°F (9.3°C). Weather in December »
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

The lowest temperatures are recorded in January, with averages reaching a high of 44.2°F (6.8°C) and a low of 28.6°F (-1.9°C).

How many days does it rain?

In Swannsylvania, during the entire year, the rain falls for 150.7 days and collects up to 23.5" (597mm) of precipitation.

When does it snow in Swannsylvania?

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

What is the snowiest month?

January is the month with the most snowfall. Snow falls for 4.8 days and accumulates 1.46" (37mm) of snow.

How many days does it snow?

Throughout the year, there are 17.2 snowfall days, and 5.39" (137mm) of snow is accumulated.

What is the month with the least sunshine?

With an average of 5.2h of sunshine, January has the least sunshine of the year.

What is the month with the lowest UV index?

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

What is the rainiest month?

The month with the most rainfall is February, when the rain falls for 11.8 days and typically aggregates up to 2.99" (76mm) of precipitation.

When is Daylight Saving Time (DST)?

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 Swannsylvania, snow does not fall in May through September.

What is the month with the highest UV index?

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

When are the longest days?

With an average of 14h and 36min of daylight, June has the longest days of the year.

What is the month with the most sunshine in Swannsylvania?

The months with the most sunshine are June and July, with an average of 10.9h of sunshine.

What are the warmest months in Swannsylvania?

July stands out as Swannsylvania's warmest month, with temperatures ranging between an average high of 87.1°F (30.6°C) and a low of 64°F (17.8°C).

What is the least humid month?

With an average relative humidity of 72%, August is the least humid month in Swannsylvania.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 11.2 days and typically collects 1.22" (31mm) of precipitation.

What is the most humid month?

December is the most humid month, with an average relative humidity of 79%.

What is the month with the shortest days?

With an average of 9h and 48min of daylight, December has the shortest days of the year in Swannsylvania, Tennessee.

Average temperature
Swannsylvania, TN

Average temperature - Swannsylvania, TN

The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (44.2°F).

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).

Average pressure
Swannsylvania, TN

Average pressure - Swannsylvania, TN

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed
Swannsylvania, TN

Average wind speed - Swannsylvania, TN

The windiest month (with the highest average wind speed) is April (6.1mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

Average humidity
Swannsylvania, TN

Average humidity - Swannsylvania, TN

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is August (72%).

Average rainfall
Swannsylvania, TN

Average rainfall - Swannsylvania, TN

The wettest month (with the highest rainfall) is February (2.99").
The driest month (with the least rainfall) is September (1.22").

Average rainfall days
Swannsylvania, TN

Average rainfall days - Swannsylvania, TN

The months with the highest number of rainy days are May and July (15.3 days).
The month with the least rainy days is November (9.1 days).

Average snowfall
Swannsylvania, TN

Average snowfall - Swannsylvania, TN

The month with the highest snowfall is January (1.46").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
Swannsylvania, TN

Average snowfall days - Swannsylvania, TN

The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Swannsylvania, TN

Average daylight / Average sunshine - Swannsylvania, TN

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).

The months with the most sunshine are June and July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).

Average sunshine days
Swannsylvania, TN

Average sunshine days - Swannsylvania, TN

The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is July (12.3 days).

Average UV index
Swannsylvania, TN

Average UV index - Swannsylvania, 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
Swannsylvania, TN

Average visibility - Swannsylvania, TN

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

Swannsylvania, Tennessee, USA

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