April weather forecast
Great Smoky Mountains National Park, TN

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

Weather in April

Stepping into April, the Great Smoky Mountains National Park enjoys a palpable spring. The stark contrast from the dwindling winter and the emergent springtime marks a stark shift in the park's typical activities. Notably, the snowfall dips dramatically from March's 16.8" (427mm) to just 6.6" (168mm) in April. Visitors can expect an increase in daylight hours, promising elongated periods for exploring the park's wonders. Occasional rainfall may punctuate the days as April showers spur the growth of new life.

Temperature

As Great Smoky Mountains National Park enters April, the average high-temperature increases from the a frosty 46.9°F (8.3°C) of March to a mild 57°F (13.9°C). The mean low-temperature during April nights is an icy 37°F (2.8°C).

Rainfall

In Great Smoky Mountains National Park, in April, it is raining for 10 days, with typically 5.98" (152mm) of accumulated precipitation. In Great Smoky Mountains National Park, Tennessee, during the entire year, the rain falls for 123 days and collects up to 72.13" (1832mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Great Smoky Mountains National Park, during April, snow falls for 2 days and regularly aggregates up to 6.61" (168mm) of snow. Throughout the year, there are 27 snowfall days, and 81.5" (2070mm) of snow is accumulated.

Daylight

The average length of the day in April is 13h and 7min.
On the first day of the month, sunrise is at 7:19 am and sunset at 7:55 pm. On the last day of April, sunrise is at 6:42 am and sunset at 8:20 pm EDT.

Sunshine

The average sunshine in April in Great Smoky Mountains National Park is 8h.

UV index

In April, the average daily maximum UV index is 8. A UV Index reading of 8 to 10 represents a very high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum UV index of 8 in April translates into the following recommendations:
Without proper safety measures, skin and eyes can be quickly harmed. Be sure to protect yourself. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Opt for tightly woven and loose clothing to enhance protection from the Sun. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Updated: Jul 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in April?

An average high-temperature, in April, in Great Smoky Mountains National Park, is 57°F (13.9°C) and the average low-temperature is 37°F (2.8°C).

How many days does it rain in April?

In Great Smoky Mountains National Park, in April, during 10 rainfall days, 5.98" (152mm) of precipitation is typically accumulated.

How many days does it snow in April?

In Great Smoky Mountains National Park, in April, during 2 snowfall days, 6.61" (168mm) of snow is typically accumulated.

What is the average length of the day in April?

In April, the average day length is 13h and 7min.

What time are sunrise and sunset in April?

In April, on the first day of the month, sunrise is at 7:19 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 8:20 pm EDT.

How many hours of sunshine does Great Smoky Mountains National Park have in April?

In April, the average sunshine duration is 8h.

What is the UV index intensity in April?

In Great Smoky Mountains National Park, Tennessee, the average daily maximum UV index in April is 8. A UV Index of 8 to 10 symbolizes a very high health vulnerability from unsafe exposure to Sun's UV rays.
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average UV index

Average temperature in April
Great Smoky Mountains National Park, TN

Average temperature in April - Great Smoky Mountains National Park, TN
  • Average high temperature in April: 57°F

The warmest month (with the highest average high temperature) is July (71°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in April: 37°F

The months with the highest average low temperature are July and August (55°F).
The coldest month (with the lowest average low temperature) is January (20°F).

Average rainfall in April
Great Smoky Mountains National Park, TN

Average rainfall in April - Great Smoky Mountains National Park, TN
  • Average rainfall in April: 6"

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

Average rainfall days in April
Great Smoky Mountains National Park, TN

Average rainfall days in April - Great Smoky Mountains National Park, TN
  • Average rainfall days in April: 10 days

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).

Average snowfall in April
Great Smoky Mountains National Park, TN

Average snowfall in April - Great Smoky Mountains National Park, TN
  • Average snowfall in April: 6.6"

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

Average snowfall days in April
Great Smoky Mountains National Park, TN

Average snowfall days in April - Great Smoky Mountains National Park, TN
  • Average snowfall days in April: 2 days

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).

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

Average daylight in April / Average sunshine in April - Great Smoky Mountains National Park, TN
  • Average daylight in April: 13h and 1min

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).

  • Average sunshine in April: 8h

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).

Average UV index in April
Great Smoky Mountains National Park, TN

Average UV index in April - Great Smoky Mountains National Park, TN
  • Average UV index in April: 8

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).

Great Smoky Mountains National Park, Tennessee, USA

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