What’s the climate like in Great Smoky Mountains National Park?
The current climate of Great Smoky Mountains National Park features average monthly temperatures ranging from highs of 30°C during the day to lows of 9°C. The average yearly temperature is around 22°C. At night, temperatures in the colder months average around -1°C and in the warmer months around 19°C.
The highest temperature recorded in Great Smoky Mountains National Park in recent years was 35°C in July 2017. The lowest daytime temperature recorded was -10°C in February 2015.
On average, Great Smoky Mountains National Park gets 1058 mm of precipitation each year. Of this, about 79 cm is snowfall. For comparison, UK gets 701 mm of precipitation each year.
Best time to visit Great Smoky Mountains National Park?
The best time to visit Great Smoky Mountains National Park for sunny weather is April through October. During this period, you'll have good temperatures and not too much rain, making it a great time to visit Great Smoky Mountains National Park. In the other months of the year, there's too much rain or the temperature isn't ideal for a visit if you want sunny and pleasant weather.
Discover cheap holidays to Great Smoky Mountains National Park 
Climate Table of Great Smoky Mountains National Park
The climate table of Great Smoky Mountains National Park shows the average temperatures, precipitation, snow, and UV index per month. The table gives an overview of the average day and night temperatures in degrees Celsius, the total amount of precipitation in millimetres, the total snowfall in centimetres, and the UV index for each month. Precipitation is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp. max (°C) | 9 | 13 | 17 | 21 | 25 | 29 | 30 | 30 | 28 | 23 | 16 | 12 |
| Temp. min (°C) | -1 | 2 | 5 | 8 | 13 | 17 | 20 | 20 | 16 | 10 | 3 | 2 |
| Precipitation |  |
|
|
|
|
|
|
|
|
|
|
|
| Precipitation (mm) | 80 | 137 | 91 | 86 | 92 | 83 | 92 | 105 | 51 | 67 | 70 | 104 |
| Snow (cm) | 33 | 21 | 9,0 | 0,3 | 0,1 | 0 | 0 | 0 | 0 | 1,0 | 5,8 | 9,2 |
| UV Index | 2 | 2 | 3 | 5 | 5 | 6 | 7 | 7 | 6 | 5 | 4 | 2 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
- Average yearly temperature: 22°C
- Highest temperature: 30°C in July and August
- Lowest temperature: 9°C in January
- Precipitation*: 1058 mm per year, averaging 88 mm per month
- Snowfall: 79 cm per year
- Driest months: 51 mm in September, 67 mm in October and 70 mm in November
- Wettest months: 137 mm in February, 105 mm in August and 104 mm in December
*Precipitation is measured as a combination of rain, snow, and hail
Plan your next holiday
Don’t miss the best holiday deals for Great Smoky Mountains National Park and see what our partners have for you.
Table of Contents
Average Temperature per Month in Great Smoky Mountains National Park
This graph shows the average maximum temperatures per month in Great Smoky Mountains National Park, Tennessee. The temperatures are shown in degrees Celsius and the average is calculated based on the recorded temperatures per month from past years.
Average Precipitation per Month in Great Smoky Mountains National Park
This graph shows how much precipitation Great Smoky Mountains National Park, Tennessee, gets on average per month. Precipitation is always measured as water, even if it's snow or hail. This makes it easy to compare how much has fallen, regardless of the form of precipitation. The amount of precipitation is measured in millimetres and the average is calculated based on the recorded precipitation per month from past years.
Average Snowfall per Month in Great Smoky Mountains National Park
This graph shows how much snow Great Smoky Mountains National Park, Tennessee, gets on average per month. The amount of snowfall is measured in centimetres and the average is calculated based on the recorded snowfall per month from past years.
Average UV Index per Month in Great Smoky Mountains National Park
This graph shows the average UV index per month in Great Smoky Mountains National Park, Tennessee. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Yearly Temperature in Great Smoky Mountains National Park
This graph shows the average yearly temperature in Great Smoky Mountains National Park, Tennessee. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in Great Smoky Mountains National Park
This chart shows the total yearly precipitation in Great Smoky Mountains National Park, Tennessee, over the past few years. The total yearly precipitation, measured in millimetres, is the sum of all the rain that fell in the twelve months of that year.
Total Yearly Snowfall in Great Smoky Mountains National Park
This chart shows the total yearly snowfall in Great Smoky Mountains National Park, Tennessee, over the past few years. The total yearly snowfall, measured in centimetres, is the sum of all the snow that fell in the twelve months of that year.
Weather experiences in Great Smoky Mountains National Park
The weather in Great Smoky Mountains National Park is rated an average of 0 out of 5 stars by 10 visitors. Have you been to Great Smoky Mountains National Park? Share your weather experience to help other visitors.
Have you been to Great Smoky Mountains National Park?
Share your weather experiences in Great Smoky Mountains National Park.
Average Weather in Great Smoky Mountains National Park by Month
Click on a month below to see detailed weather info for Great Smoky Mountains National Park. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
