December weather forecast
Sioux, WI

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Weather in December

December, the first month of the winter in Sioux, is still a freezing cold month, with an average temperature varying between 18°F (-7.8°C) and 25.3°F (-3.7°C).

Temperature

Sioux in December experiences a subtle temperature decline, with average high-temperatures reducing from a cold 37.6°F (3.1°C) in November to a subzero cold 25.3°F (-3.7°C). Sioux sees a minor drop to an average minimum temperature of 18°F (-7.8°C) during the night in the month of December.

Humidity

In Sioux, the average relative humidity in December is 87%.

Rainfall

In December, the rain falls for 5.8 days. Throughout December, 1.73" (44mm) of precipitation is accumulated. In Sioux, Wisconsin, during the entire year, the rain falls for 127.9 days and collects up to 22.56" (573mm) of precipitation.

Snowfall

Months with snowfall in Sioux are January through May, October through December. In Sioux, in December, snow falls for 20.4 days, with typically accumulated 6.81" (173mm) of snow. In Sioux, during the entire year, snow falls for 95.5 days and aggregates up to 33.54" (852mm) of snow.

Daylight

The month with the shortest days in Sioux is December, with an average of 8h and 36min of daylight.
On the first day of December in Sioux, sunrise is at 7:28 am and sunset at 4:17 pm. On the last day of the month, sunrise is at 7:48 am and sunset at 4:25 pm CST.

Sunshine

In December, the average sunshine is 2.6h.

UV index

The months with the lowest UV index in Sioux are January, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, a daily UV index of 1 turns into the following recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
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Frequently asked questions

How cold is it in Sioux in December?

The average high-temperature and low-temperature in Sioux, Wisconsin, during December are 25.3°F (-3.7°C) and 18°F (-7.8°C) respectively.

What is the average humidity in December in Sioux?

In Sioux, Wisconsin, the average relative humidity in December is 87%.

How much does it rain in Sioux in December?

In Sioux, during December, the rain falls for 5.8 days and regularly aggregates up to 1.73" (44mm) of precipitation.

How many days does it snow in December in Sioux?

In Sioux, Wisconsin, during December, snow falls for 20.4 days and regularly aggregates up to 6.81" (173mm) of snow.

What is the month with the shortest days in Sioux?

The month with the shortest days in Sioux, Wisconsin, is December, with an average of 8h and 36min of daylight.

How many hours of daylight does Sioux have in December?

In Sioux, the average day length in December is 8h and 37min.

When is the sunrise / sunset in December in Sioux?

In December, on the first day of the month, sunrise is at 7:28 am and sunset at 4:17 pm. On the last day of the month, sunrise is at 7:48 am and sunset at 4:25 pm CST.

How long on average sun shines in December in Sioux?

In December, the average sunshine duration is 2.6h.

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

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

How high is the UV index in December in Sioux?

The average daily maximum UV index in December in Sioux, Wisconsin, is 1. A UV Index of 2, and less, symbolizes a low health risk 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 December
Sioux, WI

Average temperature in December - Sioux, WI
  • Average high temperature in December: 25.3°F

The warmest month (with the highest average high temperature) is August (72.5°F).
The month with the lowest average high temperature is January (20.3°F).

  • Average low temperature in December: 18°F

The month with the highest average low temperature is August (57.9°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

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Average pressure in December
Sioux, WI

Average pressure in December - Sioux, WI
  • Average pressure in December: 30.07"Hg

The month with the highest atmospheric pressure is February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in December
Sioux, WI

Average wind speed in December - Sioux, WI
  • Average wind speed in December: 10.6mph

The windiest months (with the highest average wind speed) are January and December (10.6mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).

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Average humidity in December
Sioux, WI

Average humidity in December - Sioux, WI
  • Average humidity in December: 87%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is May (75%).

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Average rainfall in December
Sioux, WI

Average rainfall in December - Sioux, WI
  • Average rainfall in December: 1.73"

The wettest months (with the highest rainfall) are May and July (2.56").
The driest months (with the least rainfall) are January and February (1.06").

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Average rainfall days in December
Sioux, WI

Average rainfall days in December - Sioux, WI
  • Average rainfall days in December: 5.8 days

The month with the highest number of rainy days is June (15.9 days).
The month with the least rainy days is February (3.6 days).

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Average snowfall in December
Sioux, WI

Average snowfall in December - Sioux, WI
  • Average snowfall in December: 6.81"

The month with the highest snowfall is January (6.85").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Sioux, WI

Average snowfall days in December - Sioux, WI
  • Average snowfall days in December: 20.4 days

The month with the highest number of snowfall days is January (22.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Sioux, WI

Average daylight in December / Average sunshine in December - Sioux, WI
  • Average daylight in December: 8h and 4min

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in December: 2h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).

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Average sunshine days in December
Sioux, WI

Average sunshine days in December - Sioux, WI
  • Average sunshine days in December: 8.7 days

The month with the most sunshine days is September (15.1 days).
The month with the least sunshine days is December (8.7 days).

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Average UV index in December
Sioux, WI

Average UV index in December - Sioux, WI
  • Average UV index in December: 1

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

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Average cloud cover in December
Sioux, WI

Average cloud cover in December - Sioux, WI
  • Average cloud cover in December: 74

The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in December
Sioux, WI

Average visibility in December - Sioux, WI
  • Average visibility in December: 6mi

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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Sioux, Wisconsin, USA

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