January weather forecast
Sewanee, TN

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Weather in January

Starting the calendar year, January in Sewanee, Tennessee, USA, brings expectations of a wintry weather with considerable cloudiness. The month feels relatively cold, yet it does not register the lowest temperatures of the year. Rainfall is anticipated with a significant number of rainy days. Snowfall is intermittent though not entirely unusual for the month. A unique feature of January is the occurrence of snowfall measuring 1.3" (33mm), the second highest throughout the year.

Temperature

January is Sewanee's coldest month, registering average high temperatures of 44.2°F (6.8°C) and lows of 30°F (-1.1°C).

Humidity

The average relative humidity in January is 78%.

Rainfall

In Sewanee, in January, during 12.7 rainfall days, 3.46" (88mm) of precipitation is typically accumulated. In Sewanee, during the entire year, the rain falls for 191.9 days and collects up to 48.15" (1223mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In Sewanee, in January, during 6.1 snowfall days, 1.3" (33mm) of snow is typically accumulated. In Sewanee, during the entire year, snow falls for 20.1 days and aggregates up to 7.72" (196mm) of snow.

Daylight

In January, the average length of the day is 10h and 6min.
On the first day of the month, sunrise is at 6:52 am and sunset at 4:42 pm. On the last day of January, sunrise is at 6:43 am and sunset at 5:10 pm CST.

Sunshine

In Sewanee, the average sunshine in January is 4.6h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Sewanee. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for average individuals.
Note: In January, a daily maximum UV index of 2 leads to the following instructions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
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Frequently asked questions

What time of the year is the coldest in Sewanee?

The coldest time of the year in Sewanee, Tennessee, is January, with temperatures averaging a high of 44.2°F (6.8°C) and a low of 30°F (-1.1°C).

How cold is it in Sewanee in January?

The high-temperature in Sewanee during January is 44.2°F (6.8°C) and the low-temperature is 30°F (-1.1°C).

What is the average humidity in January in Sewanee?

In Sewanee, Tennessee, the average relative humidity in January is 78%.

How much does it rain in Sewanee in January?

In Sewanee, during January, the rain falls for 12.7 days and regularly aggregates up to 3.46" (88mm) of precipitation.

How much does it snow in Sewanee in January?

In January, in Sewanee, it is snowing for 6.1 days. Throughout January, 1.3" (33mm) of snow is accumulated.

How many hours of daylight does Sewanee have in January?

In Sewanee, Tennessee, the average day length in January is 10h and 6min.

When are sunrise and sunset in January in Sewanee?

In January, on the first day of the month, sunrise is at 6:52 am and sunset at 4:42 pm. On the last day of the month, in Sewanee, sunrise is at 6:43 am and sunset at 5:10 pm CST.

How long on average sun shines in January in Sewanee?

In January, the average sunshine duration in Sewanee is 4.6h.

What are the months with the lowest UV index in Sewanee?

The months with the lowest UV index in Sewanee are January, February and December, with an average maximum UV index of 2.

What is the UV index reading in January in Sewanee?

In January, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Sewanee, TN

Average temperature in January - Sewanee, TN
  • Average high temperature in January: 44.2°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (44.2°F).

  • Average low temperature in January: 30°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (30°F).

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Average pressure in January
Sewanee, TN

Average pressure in January - Sewanee, TN
  • Average pressure in January: 30.17"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in January
Sewanee, TN

Average wind speed in January - Sewanee, TN
  • Average wind speed in January: 6.7mph

The windiest month (with the highest average wind speed) is February (7mph).
The calmest months (with the lowest average wind speed) are July and August (4mph).

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Average humidity in January
Sewanee, TN

Average humidity in January - Sewanee, TN
  • Average humidity in January: 78%

The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (76%).

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Average rainfall in January
Sewanee, TN

Average rainfall in January - Sewanee, TN
  • Average rainfall in January: 3.46"

The wettest month (with the highest rainfall) is July (5.51").
The driest month (with the least rainfall) is November (2.8").

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Average rainfall days in January
Sewanee, TN

Average rainfall days in January - Sewanee, TN
  • Average rainfall days in January: 12.7 days

The month with the highest number of rainy days is July (22.5 days).
The month with the least rainy days is November (10.4 days).

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Average snowfall in January
Sewanee, TN

Average snowfall in January - Sewanee, TN
  • Average snowfall in January: 1.3"

The month with the highest snowfall is February (2.99").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Sewanee, TN

Average snowfall days in January - Sewanee, TN
  • Average snowfall days in January: 6.1 days

The month with the highest number of snowfall days is January (6.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Sewanee, TN

Average daylight in January / Average sunshine in January - Sewanee, 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: 4h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

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Average sunshine days in January
Sewanee, TN

Average sunshine days in January - Sewanee, TN
  • Average sunshine days in January: 15.3 days

The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is July (6.3 days).

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Average UV index in January
Sewanee, TN

Average UV index in January - Sewanee, TN
  • Average UV index in January: 2

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in January
Sewanee, TN

Average cloud cover in January - Sewanee, TN
  • Average cloud cover in January: 52

The month with the most cloud cover is February (Cloud cover 54).
The months with the least cloud cover are June and September (Cloud cover 33).

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Average visibility in January
Sewanee, TN

Average visibility in January - Sewanee, TN
  • Average visibility in January: 5mi

The months with the highest visibility are June and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September, October and December (5mi).

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Sewanee, Tennessee, USA

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