Climate and monthly weather forecast
Westlyn, TN

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Weather in January

January, the same as December, in Westlyn, Tennessee, is a frosty winter month, with an average temperature fluctuating between 29.7°F (-1.3°C) and 44.8°F (7.1°C). January stands out as Westlyn's coldest month, with an average high-temperature of 44.8°F (7.1°C) and a low-temperature of 29.7°F (-1.3°C). Weather in January »

Weather in February

The last month of the winter, February, is a cool month in Westlyn, Tennessee, with temperature in the range of an average high of 50°F (10°C) and an average low of 33.6°F (0.9°C). Westlyn's weather in February, with an average high-temperature of a fresh 50°F (10°C), subtly shifts from January's 44.8°F (7.1°C). Weather in February »

Weather in March

The first month of the spring, March, is a moderate month in Westlyn, Tennessee, with an average temperature ranging between min 40.5°F (4.7°C) and max 58.1°F (14.5°C). Westlyn's transition into March sees a mild rise in the average high-temperature, edging from a cool 50°F (10°C) in February to a moderate 58.1°F (14.5°C). Weather in March »

Weather in April

April in Westlyn, Tennessee, is a pleasant spring month, with an average temperature fluctuating between 48.2°F (9°C) and 69.1°F (20.6°C). With the onset of April, Westlyn experiences a temperature shift, with the average high-temperature moving from a mild 58.1°F (14.5°C) in March to a pleasant 69.1°F (20.6°C). Weather in April »

Weather in May

May, the last month of the spring in Westlyn, is a moderately hot month, with an average temperature varying between 55.8°F (13.2°C) and 77.9°F (25.5°C). Westlyn's transition into May sees a mild rise in the average high-temperature, edging from a pleasant 69.1°F (20.6°C) in April to a moderately hot 77.9°F (25.5°C). Weather in May »

Weather in June

The first month of the summer, June, is also a moderately hot month in Westlyn, Tennessee, with an average temperature fluctuating between 85.1°F (29.5°C) and 62.4°F (16.9°C). The transition from May to June brings a subtle temperature rise, with average high-temperatures increasing from 77.9°F (25.5°C) to a still warm 85.1°F (29.5°C). Weather in June »

Weather in July

July in Westlyn, Tennessee, is a tropical summer month, with an average temperature varying between 66°F (18.9°C) and 87.8°F (31°C). The highest temperatures are recorded in July, with averages reaching a high of 87.8°F (31°C) and a low of 66°F (18.9°C). The heat index in July is evaluated at a torrid 102.2°F (39°C). Weather in July »

Weather in August

August, the last month of the summer in Westlyn, is another tropical month, with an average temperature ranging between min 65.1°F (18.4°C) and max 87.1°F (30.6°C). Shifting into August, Westlyn records an average high-temperature of a still hot 87.1°F (30.6°C), presenting minor fluctuations compared to the previous month. Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Westlyn, Tennessee, with temperature in the range of an average low of 60.1°F (15.6°C) and an average high of 81.3°F (27.4°C). Westlyn in September undergoes a slight reduction in the average high-temperature, shifting from August's hot 87.1°F (30.6°C) to a moderately hot 81.3°F (27.4°C). Weather in September »

Weather in October

October, like September, is another pleasant autumn month in Westlyn, Tennessee, with an average temperature ranging between max 69.1°F (20.6°C) and min 48.9°F (9.4°C). October comes with a drop in the average high-temperature, falling from September's moderately hot 81.3°F (27.4°C) to a pleasant 69.1°F (20.6°C). Weather in October »

Weather in November

The last month of the autumn, November, is another mild month in Westlyn, Tennessee, with an average temperature ranging between max 57°F (13.9°C) and min 39.2°F (4°C). Westlyn's progression into November includes a drop in the average high-temperature, from an agreeable 69.1°F (20.6°C) in October to a refreshing 57°F (13.9°C). Weather in November »

Weather in December

December, the first month of the winter in Westlyn, is still a chilly month, with an average temperature fluctuating between 35.4°F (1.9°C) and 49.1°F (9.5°C). December's arrival comes with a mild decrease in the average high-temperature, moving subtly from a mild 57°F (13.9°C) in November to a frosty 49.1°F (9.5°C). Weather in December »
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Frequently asked questions

What month is the coldest in Westlyn?

Westlyn witnesses the coldest weather in January, with temperatures averaging a high of 44.8°F (7.1°C) and a low of 29.7°F (-1.3°C).

How many days does it rain in Westlyn?

In Westlyn, Tennessee, during the entire year, the rain falls for 177.6 days and collects up to 37.91" (963mm) of precipitation.

When does it snow in Westlyn?

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

How many days does it snow in Westlyn?

Throughout the year, in Westlyn, Tennessee, there are 19 snowfall days, and 5.59" (142mm) of snow is accumulated.

What is the month with the least sunshine in Westlyn?

The month with the least sunshine in Westlyn is January, with an average of 5.1h of sunshine.

What are the months with the lowest UV index in Westlyn?

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

What is the rainiest month in Westlyn?

The month with the most rainfall is February, when the rain falls for 13.8 days and typically aggregates up to 4.33" (110mm) of precipitation.

What is the snowiest month in Westlyn?

February is the month with the most snowfall. Snow falls for 5.4 days and accumulates 1.93" (49mm) of snow.

When is Daylight Saving Time (DST) in Westlyn?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Westlyn, 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 Westlyn?

In Westlyn, Tennessee, snow does not fall in May through September.

What is the month with the highest UV index in Westlyn?

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

When are the longest days in Westlyn?

The month with the longest days in Westlyn, Tennessee, is June, with an average of 14h and 36min of daylight.

What month has the most sunshine in Westlyn?

With an average of 10.7h of sunshine, June has the most sunshine of the year in Westlyn.

What month is the hottest in Westlyn?

July, on average, is the warmest month in Westlyn, registering a high temperature of 87.8°F (31°C) and a low of 66°F (18.9°C).

What is the least humid month in Westlyn?

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

What is the driest month in Westlyn?

The month with the least rainfall is September, when the rain falls for 12.6 days and typically collects 1.97" (50mm) of precipitation.

What is the most humid month in Westlyn?

With an average relative humidity of 79%, December is the most humid month in Westlyn.

What is the month with the shortest days in Westlyn?

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

Average pressure
Westlyn, TN

Average pressure - Westlyn, 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).

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Average wind speed
Westlyn, TN

Average wind speed - Westlyn, TN

The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

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Average rainfall
Westlyn, TN

Average rainfall - Westlyn, TN

The wettest month (with the highest rainfall) is February (4.33").
The driest month (with the least rainfall) is September (1.97").

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Average rainfall days
Westlyn, TN

Average rainfall days - Westlyn, TN

The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is November (10.3 days).

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Average snowfall
Westlyn, TN

Average snowfall - Westlyn, TN

The month with the highest snowfall is February (1.93").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days
Westlyn, TN

Average snowfall days - Westlyn, TN

The month with the highest number of snowfall days is January (5.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight / Average sunshine
Westlyn, TN

Average daylight / Average sunshine - Westlyn, 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 month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

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Average sunshine days
Westlyn, TN

Average sunshine days - Westlyn, TN

The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is July (10.3 days).

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Average UV index
Westlyn, TN

Average UV index - Westlyn, 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).

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Average visibility
Westlyn, TN

Average visibility - Westlyn, TN

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

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Westlyn, Tennessee, USA

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