Weather in October
Temperature
Transitioning from September to October involves a subtle drop in average high-temperatures, descending from an enjoyable 64.9°F (18.3°C) to a mild 57°F (13.9°C). During October nights, Great Smoky Mountains National Park witnesses a consistent average temperature of 39.9°F (4.4°C).Rainfall
The month with the least rainfall is October, when the rain falls for 8 days and typically collects 4.33" (110mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. October is the first month it typically snows. Throughout October, Great Smoky Mountains National Park receives 1.93" (49mm) of snow. Throughout the year, 81.5" (2070mm) of snow is accumulated.Daylight
The average length of the day in October is 11h and 16min.On the first day of the month, sunrise is at 7:29 am and sunset at 7:17 pm. On the last day of October, sunrise is at 7:55 am and sunset at 6:39 pm EDT.
Sunshine
The average sunshine in October is 7h.UV index
The average daily maximum UV index in October is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: In October, the average maximum UV index of 5 translates into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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What is the UV index intensity in October?
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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