Climate and monthly weather forecast
Great Smoky Mountains National Park, TN

Breathtaking panorama of the Great Smoky Mountains National Park in Tennessee,
Breathtaking panorama of the Great Smoky Mountains National Park in Tennessee,

Weather in January

January, like December, in Great Smoky Mountains National Park, Tennessee, is another cold winter month, with an average temperature fluctuating between 19.9°F (-6.7°C) and 37°F (2.8°C). January is the coldest month, with an average high-temperature of 37°F (2.8°C) and an average low-temperature of 19.9°F (-6.7°C). Weather in January »

Weather in February

February, the last month of the winter in Great Smoky Mountains National Park, is also a wintry month, with an average temperature fluctuating between 39.9°F (4.4°C) and 21.9°F (-5.6°C). In February, the average high-temperature is relatively the same as in January - a still cold 39.9°F (4.4°C). Weather in February »

Weather in March

March, the first month of the spring in Great Smoky Mountains National Park, is a frosty month, with an average temperature varying between 28°F (-2.2°C) and 46.9°F (8.3°C). In March, the average high-temperature marginally rises from a cold 39.9°F (4.4°C) in February to a chilly 46.9°F (8.3°C). Weather in March »

Weather in April

April is a moderate spring month in Great Smoky Mountains National Park, Tennessee, with an average temperature fluctuating between 37°F (2.8°C) and 57°F (13.9°C). In April, the average high-temperature rises from a frosty 46.9°F (8.3°C) in March to a moderate 57°F (13.9°C). Weather in April »

Weather in May

May, the last month of the spring in Great Smoky Mountains National Park, is an enjoyable month, with temperature in the range of an average low of 45°F (7.2°C) and an average high of 64°F (17.8°C). In Great Smoky Mountains National Park, the average high-temperature in May slightly increases from a moderate 57°F (13.9°C) in April to an enjoyable 64°F (17.8°C). Weather in May »

Weather in June

The first month of the summer, June, is a pleasant month in Great Smoky Mountains National Park, Tennessee, with an average temperature ranging between max 69.1°F (20.6°C) and min 52°F (11.1°C). In Great Smoky Mountains National Park, the average high-temperature in June is relatively the same as in May - an agreeable 69.1°F (20.6°C). Weather in June »

Weather in July

July, like June, is an agreeable summer month in Great Smoky Mountains National Park, Tennessee, with an average temperature ranging between min 55°F (12.8°C) and max 71.1°F (21.7°C). With an average high-temperature of 71.1°F (21.7°C) and an average low-temperature of 55°F (12.8°C), July is the warmest month. Weather in July »

Weather in August

August, the last month of the summer in Great Smoky Mountains National Park, is another pleasant month, with an average temperature fluctuating between 70°F (21.1°C) and 55°F (12.8°C). In Great Smoky Mountains National Park, the average high-temperature in August is relatively the same as in July - a still agreeable 70°F (21.1°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a comfortable month in Great Smoky Mountains National Park, Tennessee, with an average temperature ranging between max 64.9°F (18.3°C) and min 50°F (10°C). In September, the average high-temperature is practically the same as in August - an enjoyable 64.9°F (18.3°C). Weather in September »

Weather in October

October, the same as September, in Great Smoky Mountains National Park, Tennessee, is a moderate autumn month, with an average temperature ranging between min 39.9°F (4.4°C) and max 57°F (13.9°C). In October, the average high-temperature marginally drops from an enjoyable 64.9°F (18.3°C) in September to a mild 57°F (13.9°C). Weather in October »

Weather in November

November, the last month of the autumn in Great Smoky Mountains National Park, is also a frosty month, with an average temperature fluctuating between 48°F (8.9°C) and 30°F (-1.1°C). In November, the average high-temperature decreases from a moderate 57°F (13.9°C) in October to a chilly 48°F (8.9°C). Weather in November »

Weather in December

The first month of the winter, December, is also a wintry month in Great Smoky Mountains National Park, Tennessee, with an average temperature fluctuating between 41°F (5°C) and 25°F (-3.9°C). In Great Smoky Mountains National Park, Tennessee, the average high-temperature in December marginally drops from a chilly 48°F (8.9°C) in November to a cold 41°F (5°C). Weather in December »
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FAQ

What is the coldest month in Great Smoky Mountains National Park?

January is the coldest month in Great Smoky Mountains National Park, Tennessee, with an average high-temperature of 37°F (2.8°C) and an average low-temperature of 19.9°F (-6.7°C).

How much does it rain in Great Smoky Mountains National Park?

Throughout the year, there are 123 rainfall days, and 72.13" (1832mm) of precipitation is accumulated.

When does it snow in Great Smoky Mountains National Park?

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

How many days does it snow in Great Smoky Mountains National Park?

In Great Smoky Mountains National Park, during the entire year, snow falls for 27 days and aggregates up to 81.5" (2070mm) of snow.

When does it snow the most in Great Smoky Mountains National Park?

The month with the most snowfall in Great Smoky Mountains National Park, Tennessee, is February, when snow falls for 6 days and typically aggregates up to 18.11" (460mm) of snow.

When is Daylight Saving Time (DST) in Great Smoky Mountains National Park?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Great Smoky Mountains National Park, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from EDT to EST.

What are the months with the most sunshine in Great Smoky Mountains National Park?

May through July, with an average of 9h of sunshine, are months with the most sunshine in Great Smoky Mountains National Park, Tennessee.

When it does not snow in Great Smoky Mountains National Park?

In Great Smoky Mountains National Park, Tennessee, snow does not fall in June through September.

When are the longest days in Great Smoky Mountains National Park?

June has the longest days of the year in Great Smoky Mountains National Park, Tennessee, with an average of 14h and 32min of daylight.

What is the month with the highest UV index in Great Smoky Mountains National Park?

The months with the highest UV index in Great Smoky Mountains National Park are June and July, with an average maximum UV index of 10.

What is the warmest month in Great Smoky Mountains National Park?

July is the warmest month in Great Smoky Mountains National Park, Tennessee, with an average high-temperature of 71.1°F (21.7°C) and an average low-temperature of 55°F (12.8°C).

What is the wettest month in Great Smoky Mountains National Park?

July is the month with the most rainfall in Great Smoky Mountains National Park. Rain falls for 14 days and accumulates 7.6" (193mm) of precipitation.

What is the driest month in Great Smoky Mountains National Park?

The month with the least rainfall in Great Smoky Mountains National Park is October, when the rain falls for 8 days and typically collects 4.33" (110mm) of precipitation.

What is the month with the shortest days in Great Smoky Mountains National Park?

The month with the shortest days in Great Smoky Mountains National Park, Tennessee, is December, with an average of 9h and 48min of daylight.

What is the month with the least sunshine in Great Smoky Mountains National Park?

December has the least sunshine of the year in Great Smoky Mountains National Park, with an average of 4h of sunshine.

When is the lowest UV index in Great Smoky Mountains National Park?

December is the month with the lowest UV index in Great Smoky Mountains National Park, Tennessee, with an average maximum UV index of 2.

Average rainfall
Great Smoky Mountains National Park, TN

Average rainfall - Great Smoky Mountains National Park, TN

The wettest month (with the highest rainfall) is July (7.6").
The driest month (with the least rainfall) is October (4.3").

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Average rainfall days
Great Smoky Mountains National Park, TN

Average rainfall days - Great Smoky Mountains National Park, TN

The month with the highest number of rainy days is July (14 days).
The months with the least rainy days are September, October and November (8 days).

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Average snowfall
Great Smoky Mountains National Park, TN

Average snowfall - Great Smoky Mountains National Park, TN

The month with the highest snowfall is February (18.1").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Great Smoky Mountains National Park, TN

Average snowfall days - Great Smoky Mountains National Park, TN

The month with the highest number of snowfall days is January (7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight / Average sunshine
Great Smoky Mountains National Park, TN

Average daylight / Average sunshine - Great Smoky Mountains National Park, TN

The month with the longest days is June (Average daylight: 14h and 32min).
The month with the shortest days is December (Average daylight: 9h and 48min).

The months with the most sunshine are May, June and July (Average sunshine: 9h).
The month with the least sunshine is December (Average sunshine: 4h).

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Average UV index
Great Smoky Mountains National Park, TN

Average UV index - Great Smoky Mountains National Park, TN

The months with the highest UV index are June and July (UV index 10).
The month with the lowest UV index is December (UV index 2).

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