January weather forecast
Hartsville, SC

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Weather in January

January, like December, in Hartsville, South Carolina, is another fresh winter month, with an average temperature ranging between max 51.8°F (11°C) and min 36.9°F (2.7°C).

Temperature

In Hartsville, South Carolina, the lowest average temperatures are observed in January, with a high of 51.8°F (11°C) and a low of 36.9°F (2.7°C).

Humidity

January and November, with an average relative humidity of 71%, are the least humid months.

Rainfall

The month with the least rainfall is January, when the rain falls for 10.8 days and typically collects 1.81" (46mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. In Hartsville, during January, snow falls for 0.3 days and regularly aggregates up to 0.28" (7mm) of snow. Throughout the year, there are 1.4 snowfall days, and 1.57" (40mm) of snow is accumulated.

Daylight

In Hartsville, the average length of the day in January is 10h and 10min.
On the first day of the month, sunrise is at 7:26 am and sunset at 5:20 pm. On the last day of January, sunrise is at 7:18 am and sunset at 5:48 pm EST.

Sunshine

The months with the least sunshine are January and December, with an average of 5.5h of sunshine.

UV index

The month with the lowest UV index is January, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum UV index of 2 in January translates into the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Updated: Jun 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year?

The lowest temperatures in Hartsville are recorded in January, with averages reaching a high of 51.8°F (11°C) and a low of 36.9°F (2.7°C).

What is the average January temperature?

In Hartsville, in January, the average high-temperature is 51.8°F (11°C), and the average low-temperature is 36.9°F (2.7°C).

What is the least humid month?

January and November, with an average relative humidity of 71%, are the least humid months in Hartsville.

What is the average humidity in January?

In Hartsville, South Carolina, the average relative humidity in January is 71%.

What is the driest month?

January is the month with the least rainfall. Rain falls for 10.8 days and accumulates 1.81" (46mm) of precipitation.

How much does it rain in January?

In Hartsville, in January, it is raining for 10.8 days, with typically 1.81" (46mm) of accumulated precipitation.

How many days does it snow in January?

In January, it is snowing for 0.3 days. Throughout January, 0.28" (7mm) of snow is accumulated.

What is the average length of the day in January?

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

When are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:26 am and sunset at 5:20 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:48 pm EST.

What is the month with the least sunshine?

January and December, with an average of 5.5h of sunshine, are months with the least sunshine.

How long on average sun shines in January?

In Hartsville, the average sunshine duration in January is 5.5h.

When is the lowest UV index?

January is the month with the lowest UV index, with an average maximum UV index of 2.

What is the UV index reading in January?

In Hartsville, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability 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
Hartsville, SC

Average temperature in January - Hartsville, SC
  • Average high temperature in January: 51.8°F

The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (51.8°F).

  • Average low temperature in January: 36.9°F

The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is January (36.9°F).

Average pressure in January
Hartsville, SC

Average pressure in January - Hartsville, SC
  • Average pressure in January: 30.14"Hg

The months with the highest atmospheric pressure are January, November and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in January
Hartsville, SC

Average wind speed in January - Hartsville, SC
  • Average wind speed in January: 7.6mph

The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in January
Hartsville, SC

Average humidity in January - Hartsville, SC
  • Average humidity in January: 71%

The months with the highest relative humidity are May and September (76%).
The months with the lowest relative humidity are January and November (71%).

Average rainfall in January
Hartsville, SC

Average rainfall in January - Hartsville, SC
  • Average rainfall in January: 1.81"

The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is January (1.81").

Average rainfall days in January
Hartsville, SC

Average rainfall days in January - Hartsville, SC
  • Average rainfall days in January: 10.8 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is October (7.8 days).

Average snowfall in January
Hartsville, SC

Average snowfall in January - Hartsville, SC
  • Average snowfall in January: 0.28"

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

Average snowfall days in January
Hartsville, SC

Average snowfall days in January - Hartsville, SC
  • Average snowfall days in January: 0.3 days

The month with the highest number of snowfall days is February (0.7 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
Hartsville, SC

Average daylight in January / Average sunshine in January - Hartsville, SC
  • Average daylight in January: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in January: 5h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).

Average sunshine days in January
Hartsville, SC

Average sunshine days in January - Hartsville, SC
  • Average sunshine days in January: 18.7 days

The month with the most sunshine days is October (21.9 days).
The month with the least sunshine days is July (11 days).

Average UV index in January
Hartsville, SC

Average UV index in January - Hartsville, SC
  • Average UV index in January: 2

The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is January (UV index 2).

Average cloud cover in January
Hartsville, SC

Average cloud cover in January - Hartsville, SC
  • Average cloud cover in January: 38

The months with the most cloud cover are February and December (Cloud cover 41).
The months with the least cloud cover are June and October (Cloud cover 29).

Average visibility in January
Hartsville, SC

Average visibility in January - Hartsville, SC
  • Average visibility in January: 6mi

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

Hartsville, South Carolina, USA

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