December weather forecast
Sisseton, SD

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Weather in December

December, in Sisseton, is evidently a winter month, characterized by frigid temperatures, notably dropping from November. The highs barely climb to 23.5°F (-4.7°C) and lows plummet to 12.6°F (-10.8°C). Resurgent snowfall heralds a return to white landscapes, while a high relative humidity adds to the frosty feel of the season. Despite the shorter days, Sisseton city sparkles under the winter sun, which presents its unique charm to the residents and visitors.

Temperature

December's arrival in Sisseton sees a clear drop in the average high-temperature, decreasing from November's wintry 39.6°F (4.2°C) to a freezing cold 23.5°F (-4.7°C). Sisseton records an average low of 12.6°F (-10.8°C) throughout the nights in December.

Humidity

In December, the average relative humidity is 86%.

Rainfall

In Sisseton, during December, the rain falls for 3.4 days and regularly aggregates up to 0.94" (24mm) of precipitation. Throughout the year, in Sisseton, there are 107.9 rainfall days, and 20.63" (524mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. The month with the most snowfall in Sisseton is December, when snow falls for 11.5 days and typically aggregates up to 4.29" (109mm) of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 48min of daylight.
On the first day of December, sunrise is at 7:49 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 8:08 am and sunset at 4:54 pm CST.

Sunshine

The average sunshine in December in Sisseton is 4h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.
Note: In December, the maximum UV index of 1 transforms into these recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. The solar radiation around mid-day is intense; avoid the Sun and stay safe. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
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Frequently asked questions

How cold is it in Sisseton in December?

During December, Sisseton experiences an average high-temperature of 23.5°F (-4.7°C) and a low-temperature of 12.6°F (-10.8°C). The average heat index (a.k.a. 'feels like', 'real feel'), which combines air temperature and relative humidity, in July is evaluated at 86°F (30°C).

What is the average humidity in December in Sisseton?

In Sisseton, South Dakota, the average relative humidity in December is 86%.

How many days does it rain in December in Sisseton?

In Sisseton, in December, during 3.4 rainfall days, 0.94" (24mm) of precipitation is typically accumulated.

What is the snowiest month in Sisseton?

The month with the most snowfall in Sisseton, South Dakota, is December, when snow falls for 11.5 days and typically aggregates up to 4.29" (109mm) of snow.

How many days does it snow in December in Sisseton?

In Sisseton, in December, snow falls for 11.5 days, with typically accumulated 4.29" (109mm) of snow.

What is the month with the shortest days in Sisseton?

With an average of 8h and 48min of daylight, December has the shortest days of the year in Sisseton, South Dakota.

How many hours of daylight does Sisseton have in December?

The average day length in December is 8h and 46min.

When are sunrise and sunset in December in Sisseton?

In December, on the first day of the month, sunrise is at 7:49 am and sunset at 4:45 pm. On the last day of the month, in Sisseton, South Dakota, sunrise is at 8:08 am and sunset at 4:54 pm CST.

How long on average sun shines in December in Sisseton?

The average sunshine duration in December is 4h.

What is the month with the lowest UV index in Sisseton?

The month with the lowest UV index in Sisseton is December, with an average maximum UV index of 1.

What is the UV index reading in December in Sisseton?

In December, the average daily maximum UV index is 1. A UV Index of 2, and less, symbolizes a minimal hazard to health 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 December
Sisseton, SD

Average temperature in December - Sisseton, SD
  • Average high temperature in December: 23.5°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (19°F).

  • Average low temperature in December: 12.6°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).

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Average pressure in December
Sisseton, SD

Average pressure in December - Sisseton, SD
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

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Average wind speed in December
Sisseton, SD

Average wind speed in December - Sisseton, SD
  • Average wind speed in December: 10.7mph

The windiest months (with the highest average wind speed) are April and October (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (8.3mph).

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Average humidity in December
Sisseton, SD

Average humidity in December - Sisseton, SD
  • Average humidity in December: 86%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is September (65%).

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Average rainfall in December
Sisseton, SD

Average rainfall in December - Sisseton, SD
  • Average rainfall in December: 0.94"

The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is January (0.55").

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Average rainfall days in December
Sisseton, SD

Average rainfall days in December - Sisseton, SD
  • Average rainfall days in December: 3.4 days

The month with the highest number of rainy days is June (17.6 days).
The month with the least rainy days is February (1.6 days).

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Average snowfall in December
Sisseton, SD

Average snowfall in December - Sisseton, SD
  • Average snowfall in December: 4.29"

The month with the highest snowfall is December (4.29").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Sisseton, SD

Average snowfall days in December - Sisseton, SD
  • Average snowfall days in December: 11.5 days

The month with the highest number of snowfall days is December (11.5 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
Sisseton, SD

Average daylight in December / Average sunshine in December - Sisseton, SD
  • Average daylight in December: 8h and 5min

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

  • Average sunshine in December: 4h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in December
Sisseton, SD

Average sunshine days in December - Sisseton, SD
  • Average sunshine days in December: 17.6 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (10.8 days).

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Average UV index in December
Sisseton, SD

Average UV index in December - Sisseton, SD
  • Average UV index in December: 1

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

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Average cloud cover in December
Sisseton, SD

Average cloud cover in December - Sisseton, SD
  • Average cloud cover in December: 57

The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are July and August (Cloud cover 25).

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Average visibility in December
Sisseton, SD

Average visibility in December - Sisseton, SD
  • 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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Sisseton, South Dakota, USA

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