Breathtaking panorama of the Great Smoky Mountains National Park in Tennessee,
Weather in October
October immerses the Great Smoky Mountains National Park deeply into the fall. With the arrival of the cooler months, the rain recedes, and vegetation takes on spectacular mixes of colors in true autumn fashion. In contrast to the abundant sunshine in September, the first snowflakes appear in October, around 1.9" (48mm), reminding the visitors of the approaching winter season. Nature lovers and photography enthusiasts capture the season's vibrant hues against the backdrop of cooler temperatures and shorter periods of daylight.
On the first day of October in Great Smoky Mountains National Park, sunrise is at 7:29 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 7:55 am and sunset at 6:39 pm EDT.
Note: A maximum high UV index of 5 in October translates into the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Enhance your sun protection with tightly woven, yet airy clothing. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
[Resources]Temperature
Great Smoky Mountains National Park's October weather features a light decline in high-temperatures, reducing from a comfortable 64.9°F (18.3°C) in September to a mild 57°F (13.9°C). In October, the temperature drops to an average of 39.9°F (4.4°C) at night.Rainfall
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.Snowfall
Months with snowfall in Great Smoky Mountains National Park are January through May, October through December. October is the first month it typically snows in Great Smoky Mountains National Park. Throughout October, Great Smoky Mountains National Park receives 1.93" (49mm) of snow. Throughout the year, in Great Smoky Mountains National Park, Tennessee, 81.5" (2070mm) of snow is accumulated.Daylight
In Great Smoky Mountains National Park, the average length of the day in October is 11h and 16min.On the first day of October in Great Smoky Mountains National Park, sunrise is at 7:29 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 7:55 am and sunset at 6:39 pm EDT.
Sunshine
In Great Smoky Mountains National Park, the average sunshine in October is 7h.UV index
In October, the average daily maximum UV index in Great Smoky Mountains National Park is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: A maximum high UV index of 5 in October translates into the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Enhance your sun protection with tightly woven, yet airy clothing. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Frequently asked questions
What are October temperatures in Great Smoky Mountains National Park?
In Great Smoky Mountains National Park, in October, the average high-temperature is 57°F (13.9°C), and the average low-temperature is 39.9°F (4.4°C).
What is the driest month in Great Smoky Mountains National Park?
October is the month with the least rainfall in Great Smoky Mountains National Park. Rain falls for 8 days and accumulates 4.33" (110mm) of precipitation.
How many days does it rain in October in Great Smoky Mountains National Park?
In Great Smoky Mountains National Park, Tennessee, in October, it is raining for 8 days, with typically 4.33" (110mm) of accumulated precipitation.
When does it start to snow in Great Smoky Mountains National Park?
October is the first month it typically snows in Great Smoky Mountains National Park, Tennessee. Throughout October, Great Smoky Mountains National Park receives 1.93" (49mm) of snow.
What is the average length of the day in October in Great Smoky Mountains National Park?
The average day length in October is 11h and 16min.
What time are sunrise and sunset in October in Great Smoky Mountains National Park?
In October, on the first day of the month, sunrise is at 7:29 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 7:55 am and sunset at 6:39 pm EDT.
How long on average sun shines in October in Great Smoky Mountains National Park?
In October, the average sunshine duration in Great Smoky Mountains National Park, Tennessee, is 7h.
How high is the UV index in October in Great Smoky Mountains National Park?
In October, the average daily maximum UV index in Great Smoky Mountains National Park is 5. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
Average temperature in October
Great Smoky Mountains National Park, TN
- Average high temperature in October: 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 October: 40°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 October
Great Smoky Mountains National Park, TN
- Average rainfall in October: 4.3"
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 October
Great Smoky Mountains National Park, TN
- Average rainfall days in October: 8 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 October
Great Smoky Mountains National Park, TN
- Average snowfall in October: 1.9"
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 October
Great Smoky Mountains National Park, TN
- Average snowfall days in October: 0 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 October /
Average sunshine in October
Great Smoky Mountains National Park, TN
- Average daylight in October: 11h and 2min
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 October: 7h
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 October
Great Smoky Mountains National Park, TN
- Average UV index in October: 5
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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