January weather forecast
Johnson City, TN

The front entrance to the Public Library in Johnson City, Tennessee
The front entrance to the Public Library in Johnson City, Tennessee

Weather in January

January, the same as December, is a wintry winter month in Johnson City, Tennessee, with an average temperature ranging between min 26.6°F (-3°C) and max 41.5°F (5.3°C).

Temperature

January is the coldest month, with an average high-temperature of 41.5°F (5.3°C) and an average low-temperature of 26.6°F (-3°C).

Humidity

The average relative humidity in January in Johnson City is 78%.

Rainfall

In Johnson City, in January, during 13.8 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. In Johnson City, during the entire year, the rain falls for 187.8 days and collects up to 32.76" (832mm) of precipitation.

Snowfall

Months with snowfall in Johnson City are January through April, October through December. In Johnson City, snow falls for 8.9 days, with typically accumulated 3.39" (86mm) of snow. Throughout the year, there are 32.1 snowfall days, and 13.31" (338mm) of snow is accumulated.

Daylight

In January, the average length of the day in Johnson City is 10h and 1min.
On the first day of the month, sunrise is at 7:40 am and sunset at 5:25 pm. On the last day of January, sunrise is at 7:31 am and sunset at 5:54 pm EST.

Sunshine

The month with the least sunshine in Johnson City is January, with an average of 5h 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 minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The average daily UV index of 2 in January transform into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Johnson City?

With an average high-temperature of 41.5°F (5.3°C) and an average low-temperature of 26.6°F (-3°C), January is the coldest month in Johnson City, Tennessee.

What is the temperature in January in Johnson City?

The average high-temperature, in January, in Johnson City, Tennessee, is 41.5°F (5.3°C), while the average low-temperature is 26.6°F (-3°C).

What is the average humidity in January in Johnson City?

The average relative humidity in January in Johnson City is 78%.

How much does it rain in Johnson City in January?

In Johnson City, Tennessee, in January, during 13.8 rainfall days, 2.6" (66mm) of precipitation is typically accumulated.

How many days does it snow in January in Johnson City?

In January, in Johnson City, Tennessee, it is snowing for 8.9 days. Throughout January, 3.39" (86mm) of snow is accumulated.

How many hours of daylight does Johnson City have in January?

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

When are sunrise and sunset in January in Johnson City?

On the first day of January in Johnson City, sunrise is at 7:40 am and sunset at 5:25 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 5:54 pm EST.

What is the month with the least sunshine in Johnson City?

January has the least sunshine of the year in Johnson City, with an average of 5h of sunshine.

How many hours of sunshine does Johnson City have in January?

The average sunshine duration in January is 5h.

When is the lowest UV index in Johnson City?

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

What is the UV index intensity in January in Johnson City?

In Johnson City, Tennessee, the average daily maximum UV index in January 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Johnson City, TN

Average temperature in January - Johnson City, TN
  • Average high temperature in January: 41.5°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in January: 26.6°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).

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Average pressure in January
Johnson City, TN

Average pressure in January - Johnson City, 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).

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Average wind speed in January
Johnson City, TN

Average wind speed in January - Johnson City, TN
  • Average wind speed in January: 6.4mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

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Average humidity in January
Johnson City, TN

Average humidity in January - Johnson City, TN
  • Average humidity in January: 78%

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

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Average rainfall in January
Johnson City, TN

Average rainfall in January - Johnson City, TN
  • Average rainfall in January: 2.6"

The wettest month (with the highest rainfall) is February (3.27").
The driest month (with the least rainfall) is September (1.77").

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Average rainfall days in January
Johnson City, TN

Average rainfall days in January - Johnson City, TN
  • Average rainfall days in January: 13.8 days

The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is November (11.2 days).

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Average snowfall in January
Johnson City, TN

Average snowfall in January - Johnson City, TN
  • Average snowfall in January: 3.39"

The month with the highest snowfall is December (3.74").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Johnson City, TN

Average snowfall days in January - Johnson City, TN
  • Average snowfall days in January: 8.9 days

The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Johnson City, TN

Average daylight in January / Average sunshine in January - Johnson City, TN
  • Average daylight in January: 10h and 1min

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 44min).

  • Average sunshine in January: 5h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).

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Average sunshine days in January
Johnson City, TN

Average sunshine days in January - Johnson City, TN
  • Average sunshine days in January: 11.1 days

The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is July (8.3 days).

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Average UV index in January
Johnson City, TN

Average UV index in January - Johnson City, TN
  • Average UV index in January: 2

The months with the highest UV index are 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
Johnson City, TN

Average cloud cover in January - Johnson City, TN
  • Average cloud cover in January: 50

The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are June and August (Cloud cover 31).

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Average visibility in January
Johnson City, TN

Average visibility in January - Johnson City, TN
  • Average visibility in January: 5mi

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

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