January weather forecast
Heath, TN

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Weather in January

January, like December, in Heath, Tennessee, is a wintry winter month, with an average temperature ranging between min 24.3°F (-4.3°C) and max 38.8°F (3.8°C).

Temperature

The coldest period is January, when temperatures fluctuate between an average high of 38.8°F (3.8°C) and a low of 24.3°F (-4.3°C).

Humidity

The average relative humidity in January in Heath is 79%.

Rainfall

In Heath, in January, it is raining for 12.8 days, with typically 2.48" (63mm) of accumulated precipitation. Throughout the year, in Heath, there are 176.9 rainfall days, and 31.61" (803mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Heath. In Heath, during January, snow falls for 9.9 days and regularly aggregates up to 4.45" (113mm) of snow. Throughout the year, in Heath, there are 38.9 snowfall days, and 20.67" (525mm) of snow is accumulated.

Daylight

In Heath, the average length of the day in January is 10h and 1min.
On the first day of the month, sunrise is at 7:38 am and sunset at 5:22 pm. On the last day of January, sunrise is at 7:29 am and sunset at 5:51 pm EST.

Sunshine

The month with the least sunshine is January, with an average of 4.8h of sunshine.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.
Note: A maximum high UV index of 2 in January translates into the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest in Heath?

During the coldest month in Heath, January, temperatures average a high of 38.8°F (3.8°C) and a low of 24.3°F (-4.3°C).

How cold is January in Heath?

During January, Heath experiences an average high-temperature of 38.8°F (3.8°C) and a low-temperature of 24.3°F (-4.3°C).

What is the average humidity in January in Heath?

In Heath, Tennessee, the average relative humidity in January is 79%.

How much does it rain in Heath in January?

In Heath, Tennessee, during January, the rain falls for 12.8 days and regularly aggregates up to 2.48" (63mm) of precipitation.

How much does it snow in Heath in January?

In Heath, during January, snow falls for 9.9 days and regularly aggregates up to 4.45" (113mm) of snow.

How many hours of daylight does Heath have in January?

In January, the average day length in Heath, Tennessee, is 10h and 1min.

What time are sunrise and sunset in January in Heath?

In January, on the first day of the month, sunrise is at 7:38 am and sunset at 5:22 pm. On the last day of the month, in Heath, Tennessee, sunrise is at 7:29 am and sunset at 5:51 pm EST.

What is the month with the least sunshine in Heath?

With an average of 4.8h of sunshine, January has the least sunshine of the year in Heath, Tennessee.

How many hours of sunshine does Heath have in January?

The average sunshine duration in January in Heath, Tennessee, is 4.8h.

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

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

What is the UV index intensity in January in Heath?

In Heath, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low health threat from unprotected exposure to 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
Heath, TN

Average temperature in January - Heath, TN
  • Average high temperature in January: 38.8°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in January: 24.3°F

The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in January
Heath, TN

Average pressure in January - Heath, TN
  • Average pressure in January: 30.15"Hg

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in January
Heath, TN

Average wind speed in January - Heath, TN
  • Average wind speed in January: 7.7mph

The windiest month (with the highest average wind speed) is January (7.7mph).
The calmest month (with the lowest average wind speed) is August (4mph).

Average humidity in January
Heath, TN

Average humidity in January - Heath, TN
  • Average humidity in January: 79%

The months with the highest relative humidity are February, March and December (80%).
The month with the lowest relative humidity is November (76%).

Average rainfall in January
Heath, TN

Average rainfall in January - Heath, TN
  • Average rainfall in January: 2.48"

The wettest month (with the highest rainfall) is February (3.31").
The driest month (with the least rainfall) is September (1.57").

Average rainfall days in January
Heath, TN

Average rainfall days in January - Heath, TN
  • Average rainfall days in January: 12.8 days

The month with the highest number of rainy days is July (19.2 days).
The month with the least rainy days is November (10.1 days).

Average snowfall in January
Heath, TN

Average snowfall in January - Heath, TN
  • Average snowfall in January: 4.45"

The month with the highest snowfall is December (6.5").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Heath, TN

Average snowfall days in January - Heath, TN
  • Average snowfall days in January: 9.9 days

The month with the highest number of snowfall days is January (9.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Heath, TN
  • Average daylight in January: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in January: 4h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).

Average sunshine days in January
Heath, TN

Average sunshine days in January - Heath, TN
  • Average sunshine days in January: 11.7 days

The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is February (8.9 days).

Average UV index in January
Heath, TN

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

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in January
Heath, TN

Average cloud cover in January - Heath, TN
  • Average cloud cover in January: 54

The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are June, July and August (Cloud cover 37).

Average visibility in January
Heath, TN

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

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

Heath, Tennessee, USA

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