Great Smoky Mountains National Park Weather and Climate: A Comprehensive Guide
The climate in Great Smoky Mountains National Park is marked by big temperature swings throughout the year.
Temperatures range from warm during the warmest months
to cold in the cooler months.
It is also known for its large amounts of rain/snowfall.
Let's now guide you through the climate details for a complete overview.
Average maximum day and minimum night temperature
In Great Smoky Mountains National Park, temperatures differ significantly between summer and winter months. Typically, average maximum daytime temperatures range from a comfortable 25°C in August to a chilly 6°C in the coolest month, January.
Nights are cooler, with lows often dropping to around -6°C during the colder months. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
Great Smoky Mountains National Park experiences significant rain/snowfall throughout the year, averaging 1875 mm of precipitation annually. Great Smoky Mountains National Park offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between July (211 mm) and February (120 mm) is not too significant, making the climate enjoyable for visitors and residents alike.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
For those who appreciate different seasons, Great Smoky Mountains National Park serves as an ideal destination. Expect longer, more sun-filled days in June with an average of 9.7 hours of sunshine daily, and embrace the darker days in December, offering only 4.2 hours of daily sunlight. Visit our detailed sunshine hours page for more information.Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Average humidity
The relative humidity is high throughout the year in Great Smoky Mountains National Park.
The city experiences its highest humidity in July, reaching 76%. In April, the humidity drops to its lowest level at 63%. Explore our detailed page on humidity levels for further details.
Relative humidity over the year
clear and no rain clear and no rain almost clear and no rainForecast for Great Smoky Mountains National Park
1 m/s
2 m/s
1 m/s
The best time of year to visit Great Smoky Mountains National Park in the United States of America
During the months of May, June, July, August and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
Most rainfall (rainy season) is seen in January, April, June, July and December.
August has an average maximum temperature of 25°C and is the warmest month of the year.
The coldest month is January with an average maximum temperature of 6°C.
July tops the wettest month list with 211 mm of rainfall.
February is the driest month with 120 mm of precipitation.
June is the sunniest month with an average of 290 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
