January weather forecastHarbor Heights, TN

January

Weather in January

January, like December, is a frosty winter month in Harbor Heights, Tennessee, with temperature in the range of an average high of 46.9°F (8.3°C) and an average low of 31.5°F (-0.3°C).

Temperature

During the coldest month, January, temperatures average a high of 46.9°F (8.3°C) and a low of 31.5°F (-0.3°C).

Humidity

In January, the average relative humidity is 76%.

Rainfall

In Harbor Heights, in January, it is raining for 12.4 days, with typically 3.54" (90mm) of accumulated precipitation. In Harbor Heights, during the entire year, the rain falls for 172.9 days and collects up to 40.35" (1025mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In Harbor Heights, during January, snow falls for 2.9 days and regularly aggregates up to 0.59" (15mm) of snow. In Harbor Heights, during the entire year, snow falls for 9.2 days and aggregates up to 2.09" (53mm) of snow.

Daylight

In January, the average length of the day is 10h and 7min.
On the first day of the month, sunrise is at 7:48 am and sunset at 5:39 pm. On the last day of January, sunrise is at 7:40 am and sunset at 6:07 pm EST.

Sunshine

In Harbor Heights, the average sunshine in January is 5.3h.

UV index

January 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 hazard from exposure to the Sun's UV rays for the average person.
Note: An average maximum UV index of 2 in January leads to these recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

With an average high-temperature of 46.9°F (8.3°C) and an average low-temperature of 31.5°F (-0.3°C), January is the coldest month.

During January, Harbor Heights experiences an average high-temperature of 46.9°F (8.3°C) and a low-temperature of 31.5°F (-0.3°C).

The average relative humidity in January in Harbor Heights is 76%.

In Harbor Heights, in January, it is raining for 12.4 days, with typically 3.54" (90mm) of accumulated precipitation.

In Harbor Heights, in January, snow falls for 2.9 days, with typically accumulated 0.59" (15mm) of snow.

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

In January, on the first day of the month, sunrise is at 7:48 am and sunset at 5:39 pm. On the last day of the month, in Harbor Heights, sunrise is at 7:40 am and sunset at 6:07 pm EST.

In January, the average sunshine duration is 5.3h.

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

In January, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health threat from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Harbor Heights, TN

  • Average high temperature in January: 46.9°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (46.9°F).

  • Average low temperature in January: 31.5°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).

Average pressure in January
Harbor Heights, 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
Harbor Heights, TN

  • Average wind speed in January: 6.3mph

The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest months (with the lowest average wind speed) are July and August (3.9mph).

Average humidity in January
Harbor Heights, TN

  • Average humidity in January: 76%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (74%).

Average rainfall in January
Harbor Heights, TN

  • Average rainfall in January: 3.54"

The wettest month (with the highest rainfall) is December (4.21").
The driest month (with the least rainfall) is September (2.48").

Average rainfall days in January
Harbor Heights, TN

  • Average rainfall days in January: 12.4 days

The month with the highest number of rainy days is July (19.2 days).
The month with the least rainy days is November (9.5 days).

Average snowfall in January
Harbor Heights, TN

  • Average snowfall in January: 0.59"

The month with the highest snowfall is February (0.94").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Harbor Heights, TN

  • Average snowfall days in January: 2.9 days

The month with the highest number of snowfall days is January (2.9 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
Harbor Heights, TN

  • Average daylight in January: 10h and 6min

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 18min

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
Harbor Heights, TN

  • Average sunshine days in January: 15.9 days

The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is July (9 days).

Average UV index in January
Harbor Heights, 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 and December (UV index 2).

Average cloud cover in January
Harbor Heights, TN

  • Average cloud cover in January: 47

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
Harbor Heights, TN

  • Average visibility in January: 5mi

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