January weather forecast
South Sioux City, NE

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Weather in January

South Sioux City's January weather can be recognized by its frosty grip, with an average high and low temperature of 27°F (-2.8°C) and 13.5°F (-10.3°C) respectively. The winter chill remains firmly entrenched, seldom spilling over into February, making it colder than December. The days are shorter with an average daylight hour of 9.5. Frequent snowfall is a common sight, adding to the serene atmosphere of the city in winter. Layered clothing and winter accessories are suggested commodities during this period in South Sioux City.

Temperature

The coldest month in South Sioux City is January, with an average high-temperature of 27°F (-2.8°C) and an average low-temperature of 13.5°F (-10.3°C).

Humidity

With an average relative humidity of 83%, January is the most humid month.

Rainfall

January and February are months with the least rain in South Sioux City when the rain falls for 2.6 days and typically aggregates up to 0.39" (10mm) of rain.

Snowfall

Months with snowfall in South Sioux City are January through April, October through December. January is the month with the most snowfall. Snow falls for 8.2 days and accumulates 1.77" (45mm) of snow.

Daylight

In South Sioux City, the average length of the day in January is 9h and 29min.
On the first day of January in South Sioux City, sunrise is at 7:55 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:37 pm CST.

Sunshine

January has the least sunshine of the year, with an average of 4.5h of sunshine.

UV index

January is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 1 in January converts into the following recommendations:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
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Frequently asked questions

What are the coldest months in South Sioux City?

January is the month that records the lowest temperatures in South Sioux City, Nebraska, with averages ranging from a high of 27°F (-2.8°C) to a low of 13.5°F (-10.3°C).

How cold is it in South Sioux City in January?

In South Sioux City, 27°F (-2.8°C) is the average high-temperature and 13.5°F (-10.3°C) is the average low-temperature during January.

What is the most humid month in South Sioux City?

The most humid month in South Sioux City, Nebraska, is January, with an average relative humidity of 83%.

What is the average humidity in January in South Sioux City?

The average relative humidity in January in South Sioux City is 83%.

What is the driest month in South Sioux City?

The months with the least rainfall in South Sioux City, Nebraska, are January and February Rain falls for 2.6 days and accumulates 0.39" (10mm) of rain.

How many days does it rain in January in South Sioux City?

In South Sioux City, Nebraska, in January, during 2.6 rainfall days, 0.39" (10mm) of precipitation is typically accumulated.

When does it snow the most in South Sioux City?

January is the month with the most snowfall. Snow falls for 8.2 days and accumulates 1.77" (45mm) of snow.

How many days does it snow in January in South Sioux City?

In January, in South Sioux City, Nebraska, it is snowing for 8.2 days. Throughout January, 1.77" (45mm) of snow is accumulated.

What is the average length of the day in January in South Sioux City?

In South Sioux City, Nebraska, the average day length in January is 9h and 29min.

What time are sunrise and sunset in January in South Sioux City?

In January, on the first day of the month, sunrise is at 7:55 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:37 pm CST.

What is the month with the least sunshine in South Sioux City?

January has the least sunshine of the year in South Sioux City, with an average of 4.5h of sunshine.

How many hours of sunshine does South Sioux City have in January?

In South Sioux City, Nebraska, the average sunshine duration in January is 4.5h.

When is the lowest UV index in South Sioux City?

With an average maximum UV index of 1, January is the month with the lowest UV index in South Sioux City.

What is the UV index reading in January in South Sioux City?

In South Sioux City, Nebraska, the average daily maximum UV index in January is 1. A UV Index reading of 2, and below, represents a minimal hazard to health from unsafe exposure to Sun's UV rays.
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
South Sioux City, NE

Average temperature in January - South Sioux City, NE
  • Average high temperature in January: 27°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in January: 13.5°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).

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Average pressure in January
South Sioux City, NE

Average pressure in January - South Sioux City, NE
  • Average pressure in January: 30.16"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

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Average wind speed in January
South Sioux City, NE

Average wind speed in January - South Sioux City, NE
  • Average wind speed in January: 10.7mph

The windiest month (with the highest average wind speed) is April (11mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).

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Average humidity in January
South Sioux City, NE

Average humidity in January - South Sioux City, NE
  • Average humidity in January: 83%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (65%).

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Average rainfall in January
South Sioux City, NE

Average rainfall in January - South Sioux City, NE
  • Average rainfall in January: 0.39"

The wettest month (with the highest rainfall) is June (1.85").
The driest months (with the least rainfall) are January and February (0.39").

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Average rainfall days in January
South Sioux City, NE

Average rainfall days in January - South Sioux City, NE
  • Average rainfall days in January: 2.6 days

The month with the highest number of rainy days is June (14.6 days).
The month with the least rainy days is January (2.6 days).

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Average snowfall in January
South Sioux City, NE

Average snowfall in January - South Sioux City, NE
  • Average snowfall in January: 1.77"

The month with the highest snowfall is January (1.77").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
South Sioux City, NE

Average snowfall days in January - South Sioux City, NE
  • Average snowfall days in January: 8.2 days

The month with the highest number of snowfall days is January (8.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
South Sioux City, NE

Average daylight in January / Average sunshine in January - South Sioux City, NE
  • Average daylight in January: 9h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in January: 4h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

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Average sunshine days in January
South Sioux City, NE

Average sunshine days in January - South Sioux City, NE
  • Average sunshine days in January: 22.6 days

The month with the most sunshine days is January (22.6 days).
The month with the least sunshine days is June (13.1 days).

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Average UV index in January
South Sioux City, NE

Average UV index in January - South Sioux City, NE
  • Average UV index in January: 1

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).

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Average cloud cover in January
South Sioux City, NE

Average cloud cover in January - South Sioux City, NE
  • Average cloud cover in January: 51

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 25).

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Average visibility in January
South Sioux City, NE

Average visibility in January - South Sioux City, NE
  • 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).

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South Sioux City, Nebraska, USA

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