Weather in January
Temperature
With an average high-temperature of 37°F (2.8°C) and an average low-temperature of 19.9°F (-6.7°C), January is the coldest month.Rainfall
In Great Smoky Mountains National Park, during January, the rain falls for 11 days and regularly aggregates up to 6.22" (158mm) of precipitation. In Great Smoky Mountains National Park, 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, in January, snow falls for 7 days, with typically accumulated 16.57" (421mm) 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 January is 10h and 4min.On the first day of the month, sunrise is at 7:43 am and sunset at 5:31 pm. On the last day of January, sunrise is at 7:34 am and sunset at 6:00 pm EST.
Sunshine
In Great Smoky Mountains National Park, the average sunshine in January is 5h.UV index
In Great Smoky Mountains National Park, the average daily maximum UV index in January is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In January, a regular UV index of 3 translates into these guidelines:
Guard yourself - Avoiding sunburn is suggested. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
How cold is it in January?
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What is the average length of the day in January?
When are sunrise and sunset in January?
How long on average sun shines in January?
What is the UV index reading in January?
Average temperature in January
Great Smoky Mountains National Park, TN
- Average high temperature in January: 37°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 January: 20°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 January
Great Smoky Mountains National Park, TN
- Average rainfall in January: 6.2"
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 January
Great Smoky Mountains National Park, TN
- Average rainfall days in January: 11 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 January
Great Smoky Mountains National Park, TN
- Average snowfall in January: 16.6"
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 January
Great Smoky Mountains National Park, TN
- Average snowfall days in January: 7 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 January /
Average sunshine in January
Great Smoky Mountains National Park, TN
- Average daylight in January: 10h 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 January: 5h
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 January
Great Smoky Mountains National Park, TN
- Average UV index in January: 3
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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