January weather forecast
Signal Hills, TN

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Weather in January

January, like December, is another chilly winter month in Signal Hills, Tennessee, with temperature in the range of an average high of 46°F (7.8°C) and an average low of 30.9°F (-0.6°C).

Temperature

January is the month that records the lowest temperatures, with averages ranging from a high of 46°F (7.8°C) to a low of 30.9°F (-0.6°C).

Humidity

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

Rainfall

In Signal Hills, during January, the rain falls for 7.9 days and regularly aggregates up to 0.91" (23mm) of precipitation. Throughout the year, there are 104.5 rainfall days, and 10.98" (279mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March and December. In January, it is snowing for 0.9 days. Throughout January, 0.08" (2mm) of snow is accumulated. Throughout the year, there are 2.9 snowfall days, and 0.47" (12mm) of snow is accumulated.

Daylight

In January, the average length of the day is 10h and 7min.
On the first day of January, sunrise is at 7:49 am and sunset at 5:40 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 6:08 pm EST.

Sunshine

In Signal Hills, the average sunshine in January is 5.3h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 2 during January translates into the following guidance:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Updated: Jun 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

January, on average, is the coldest month, registering a high temperature of 46°F (7.8°C) and a low of 30.9°F (-0.6°C).

What is the average January temperature?

In January, the average high-temperature and low-temperature are 46°F (7.8°C) and 30.9°F (-0.6°C) respectively.

What is the average humidity in January?

The average relative humidity in January is 76%.

How many days does it rain in January?

In Signal Hills, during January, the rain falls for 7.9 days and regularly aggregates up to 0.91" (23mm) of precipitation.

How many days does it snow in January?

In Signal Hills, in January, during 0.9 snowfall days, 0.08" (2mm) of snow is typically accumulated.

How many hours of daylight does Signal Hills have in January?

In January, the average day length is 10h and 7min.

When are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:49 am and sunset at 5:40 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 6:08 pm EST.

How long on average sun shines in January?

In Signal Hills, the average sunshine duration in January is 5.3h.

What is the month with the lowest UV index?

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

What is the UV index intensity in January?

The average daily maximum UV index in January in Signal Hills is 2. A UV Index value of 2, and less, symbolizes a low health risk 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
Signal Hills, TN

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

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (46°F).

  • Average low temperature in January: 30.9°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).

Average pressure in January
Signal Hills, TN

Average pressure in January - Signal Hills, 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).

Average wind speed in January
Signal Hills, TN

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

The windiest month (with the highest average wind speed) is February (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).

Average humidity in January
Signal Hills, TN

Average humidity in January - Signal Hills, TN
  • Average humidity in January: 76%

The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are June, October and November (75%).

Average rainfall in January
Signal Hills, TN

Average rainfall in January - Signal Hills, TN
  • Average rainfall in January: 0.91"

The wettest months (with the highest rainfall) are February and December (1.18").
The driest month (with the least rainfall) is September (0.43").

Average rainfall days in January
Signal Hills, TN

Average rainfall days in January - Signal Hills, TN
  • Average rainfall days in January: 7.9 days

The month with the highest number of rainy days is July (11.7 days).
The month with the least rainy days is October (6.1 days).

Average snowfall in January
Signal Hills, TN

Average snowfall in January - Signal Hills, TN
  • Average snowfall in January: 0.08"

The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in January
Signal Hills, TN

Average snowfall days in January - Signal Hills, TN
  • Average snowfall days in January: 0.9 days

The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in January /
Average sunshine in January
Signal Hills, TN

Average daylight in January / Average sunshine in January - Signal Hills, 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 2min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in January
Signal Hills, TN

Average sunshine days in January - Signal Hills, TN
  • Average sunshine days in January: 21.4 days

The month with the most sunshine days is October (23.6 days).
The month with the least sunshine days is July (16.8 days).

Average UV index in January
Signal Hills, TN

Average UV index in January - Signal Hills, 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
Signal Hills, TN

Average cloud cover in January - Signal Hills, TN
  • Average cloud cover in January: 48

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in January
Signal Hills, TN

Average visibility in January - Signal Hills, TN
  • Average visibility in January: 5mi

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

Signal Hills, Tennessee, USA

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