January weather forecast
Jacktown, TN

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Weather in January

January, like December, is a frosty winter month in Jacktown, Tennessee, with an average temperature fluctuating between 46°F (7.8°C) and 30.6°F (-0.8°C).

Temperature

Jacktown's temperature records reveal January as the coldest month, marked by average highs of 46°F (7.8°C) and lows of 30.6°F (-0.8°C).

Humidity

In Jacktown, the average relative humidity in January is 76%.

Rainfall

In January, the rain falls for 12.3 days. Throughout January, 2.4" (61mm) of precipitation is accumulated. Throughout the year, there are 170.1 rainfall days, and 33.23" (844mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, November and December. In Jacktown, during January, snow falls for 4.6 days and regularly aggregates up to 0.79" (20mm) of snow. Throughout the year, there are 14.2 snowfall days, and 2.36" (60mm) of snow is accumulated.

Daylight

The average length of the day in January is 10h and 5min.
On the first day of January, sunrise is at 7:45 am and sunset at 5:35 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 6:03 pm EST.

Sunshine

The months with the least sunshine are January and December, with an average of 5.1h of sunshine.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In January, the maximum UV index of 2 suggests these recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest in Jacktown?

With average temperatures fluctuating between a high of 46°F (7.8°C) and a low of 30.6°F (-0.8°C), January stands out as the coldest month.

What are January temperatures?

Jacktown in January has an average high-temperature of 46°F (7.8°C) and an average low-temperature of 30.6°F (-0.8°C).

What is the average humidity in January?

The average relative humidity in January is 76%.

How much does it rain in January?

In Jacktown, in January, during 12.3 rainfall days, 2.4" (61mm) of precipitation is typically accumulated.

How many days does it snow in January?

In Jacktown, during January, snow falls for 4.6 days and regularly aggregates up to 0.79" (20mm) of snow.

How many hours of daylight does Jacktown have in January?

The average day length in January is 10h and 5min.

When are sunrise and sunset in January?

On the first day of January, sunrise is at 7:45 am and sunset at 5:35 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 6:03 pm EST.

What is the month with the least sunshine?

January and December, with an average of 5.1h of sunshine, are months with the least sunshine.

How long on average sun shines in January?

The average sunshine duration in January is 5.1h.

What is the month with the lowest UV index?

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

What is the UV index reading in January?

In January, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health risk 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
Jacktown, TN

Average temperature in January - Jacktown, TN
  • Average high temperature in January: 46°F

The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (46°F).

  • Average low temperature in January: 30.6°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

Average pressure in January
Jacktown, TN

Average pressure in January - Jacktown, TN
  • Average pressure in January: 30.16"Hg

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in January
Jacktown, TN

Average wind speed in January - Jacktown, TN
  • Average wind speed in January: 6.2mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

Average humidity in January
Jacktown, TN

Average humidity in January - Jacktown, TN
  • Average humidity in January: 76%

The month with the highest relative humidity is December (79%).
The months with the lowest relative humidity are August, October and November (75%).

Average rainfall in January
Jacktown, TN

Average rainfall in January - Jacktown, TN
  • Average rainfall in January: 2.4"

The wettest month (with the highest rainfall) is July (3.94").
The driest months (with the least rainfall) are September and November (1.89").

Average rainfall days in January
Jacktown, TN

Average rainfall days in January - Jacktown, TN
  • Average rainfall days in January: 12.3 days

The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is November (9.1 days).

Average snowfall in January
Jacktown, TN

Average snowfall in January - Jacktown, TN
  • Average snowfall in January: 0.79"

The month with the highest snowfall is February (0.83").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Jacktown, TN

Average snowfall days in January - Jacktown, TN
  • Average snowfall days in January: 4.6 days

The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Jacktown, 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 and 1min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are January and December (Average sunshine: 5h and 6min).

Average sunshine days in January
Jacktown, TN

Average sunshine days in January - Jacktown, TN
  • Average sunshine days in January: 15 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (10.4 days).

Average UV index in January
Jacktown, TN

Average UV index in January - Jacktown, 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).

Average cloud cover in January
Jacktown, TN

Average cloud cover in January - Jacktown, TN
  • Average cloud cover in January: 47

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 28).

Average visibility in January
Jacktown, TN

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

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

Jacktown, Tennessee, USA

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