January weather forecast
Vienna, SD

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Weather in January

January, like December, is a freezing cold winter month in Vienna, South Dakota, with an average temperature varying between 5.5°F (-14.7°C) and 19.4°F (-7°C).

Temperature

In Vienna, the month of January is known for its lowest average temperatures, reaching a high of 19.4°F (-7°C) and a low of 5.5°F (-14.7°C).

Humidity

January is the most humid month, with an average relative humidity of 90%.

Rainfall

January and February are months with the least rain when the rain falls for 2.9 days and typically aggregates up to 0.59" (15mm) of rain.

Snowfall

January through May, October through December are months with snowfall. The months with the most snowfall are January and December, with an average 3.74" (95mm) of accumulated snow.

Daylight

In Vienna, South Dakota, the average length of the day in January is 9h and 16min.
On the first day of the month, sunrise is at 8:07 am and sunset at 4:59 pm. On the last day of January, sunrise is at 7:50 am and sunset at 5:36 pm CST.

Sunshine

January has the least sunshine of the year, with an average of 3.6h of sunshine.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: In January, a regular UV index of 1 translates into these guidelines:
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. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
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Frequently asked questions

What part of the year is the coldest in Vienna?

Vienna, South Dakota, witnesses the coldest weather in January, with temperatures averaging a high of 19.4°F (-7°C) and a low of 5.5°F (-14.7°C).

How cold is January in Vienna?

In January, the average high-temperature and low-temperature are 19.4°F (-7°C) and 5.5°F (-14.7°C) respectively.

What is the most humid month in Vienna?

January is the most humid month in Vienna, South Dakota, with an average relative humidity of 90%.

What is the average humidity in January in Vienna?

The average relative humidity in January in Vienna, South Dakota, is 90%.

What is the driest month in Vienna?

January and February are months with the least rain when the rain falls for 2.9 days and typically aggregates up to 0.59" (15mm) of rain.

How much does it rain in Vienna in January?

In Vienna, during January, the rain falls for 2.9 days and regularly aggregates up to 0.59" (15mm) of precipitation.

What is the snowiest month in Vienna?

The months with the most snowfall in Vienna, South Dakota, are January and December, with an average 3.74" (95mm) of accumulated snow.

How much does it snow in Vienna in January?

In Vienna, in January, during 14.4 snowfall days, 3.74" (95mm) of snow is typically accumulated.

How many hours of daylight does Vienna have in January?

The average day length in January in Vienna is 9h and 16min.

What time are sunrise and sunset in January in Vienna?

In January, on the first day of the month, sunrise is at 8:07 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 5:36 pm CST.

What is the month with the least sunshine in Vienna?

The month with the least sunshine in Vienna is January, with an average of 3.6h of sunshine.

How many hours of sunshine does Vienna have in January?

The average sunshine duration in January in Vienna, South Dakota, is 3.6h.

What are the months with the lowest UV index in Vienna?

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Vienna.

How high is the UV index in January in Vienna?

The average daily maximum UV index in January is 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from 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
Vienna, SD

Average temperature in January - Vienna, SD
  • Average high temperature in January: 19.4°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (19.4°F).

  • Average low temperature in January: 5.5°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (5.5°F).

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Average pressure in January
Vienna, SD

Average pressure in January - Vienna, SD
  • Average pressure in January: 30.16"Hg

The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in January
Vienna, SD

Average wind speed in January - Vienna, SD
  • Average wind speed in January: 11mph

The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).

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Average humidity in January
Vienna, SD

Average humidity in January - Vienna, SD
  • Average humidity in January: 90%

The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are September and October (68%).

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Average rainfall in January
Vienna, SD

Average rainfall in January - Vienna, SD
  • Average rainfall in January: 0.59"

The wettest month (with the highest rainfall) is June (3.19").
The driest months (with the least rainfall) are January and February (0.59").

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Average rainfall days in January
Vienna, SD

Average rainfall days in January - Vienna, SD
  • Average rainfall days in January: 2.9 days

The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is February (2.7 days).

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Average snowfall in January
Vienna, SD

Average snowfall in January - Vienna, SD
  • Average snowfall in January: 3.74"

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

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Average snowfall days in January
Vienna, SD

Average snowfall days in January - Vienna, SD
  • Average snowfall days in January: 14.4 days

The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in January /
Average sunshine in January
Vienna, SD

Average daylight in January / Average sunshine in January - Vienna, SD
  • Average daylight in January: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in January: 3h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days in January
Vienna, SD

Average sunshine days in January - Vienna, SD
  • Average sunshine days in January: 15.1 days

The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is June (10.3 days).

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Average UV index in January
Vienna, SD

Average UV index in January - Vienna, SD
  • Average UV index in January: 1

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

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Average cloud cover in January
Vienna, SD

Average cloud cover in January - Vienna, SD
  • Average cloud cover in January: 63

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in January
Vienna, SD

Average visibility in January - Vienna, SD
  • Average visibility in January: 5mi

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

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Vienna, South Dakota, USA

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