December weather forecast
Swift, MN

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Weather in December

December, the first month of the winter in Swift, is also a subzero cold month, with an average temperature varying between 17.8°F (-7.9°C) and 8.8°F (-12.9°C).

Temperature

December brings with it a considerable temperature decrease, with average high-temperatures dropping from November's cold 32.9°F (0.5°C) to a subzero cold 17.8°F (-7.9°C). Swift's nighttime average temperature in December subtly descends to an extreme cold 8.8°F (-12.9°C) from the daily highs.

Humidity

The average relative humidity in December is 91%.

Rainfall

In Swift, in December, during 2.3 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. Throughout the year, there are 109 rainfall days, and 18.66" (474mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In December, in Swift, it is snowing for 17.6 days. Throughout December, 4.8" (122mm) of snow is accumulated. In Swift, during the entire year, snow falls for 99.7 days and aggregates up to 28.27" (718mm) of snow.

Daylight

December has the shortest days of the year, with an average of 8h and 18min of daylight.
On the first day of the month, sunrise is at 7:53 am and sunset at 4:26 pm. On the last day of December, in Swift, sunrise is at 8:14 am and sunset at 4:34 pm CST.

Sunshine

The average sunshine in December in Swift is 2.2h.

UV index

The months with the lowest UV index in Swift are January, February, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 1 during December translates into the following recommendations:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Swift in December?

The high-temperature, in December, in Swift, records 17.8°F (-7.9°C), while the low-temperature is 8.8°F (-12.9°C).

What is the average humidity in December in Swift?

The average relative humidity in December is 91%.

How much does it rain in Swift in December?

In Swift, Minnesota, during December, the rain falls for 2.3 days and regularly aggregates up to 0.79" (20mm) of precipitation.

How many days does it snow in December in Swift?

In December, it is snowing for 17.6 days. Throughout December, 4.8" (122mm) of snow is accumulated.

What is the month with the shortest days in Swift?

With an average of 8h and 18min of daylight, December has the shortest days of the year.

What is the average length of the day in December in Swift?

In Swift, Minnesota, the average day length in December is 8h and 20min.

What time are sunrise and sunset in December in Swift?

In December, on the first day of the month, sunrise is at 7:53 am and sunset at 4:26 pm. On the last day of the month, in Swift, Minnesota, sunrise is at 8:14 am and sunset at 4:34 pm CST.

How many hours of sunshine does Swift have in December?

In Swift, Minnesota, the average sunshine duration in December is 2.2h.

When is the lowest UV index in Swift?

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

What is the UV index reading in December in Swift?

In December, the average daily maximum UV index in Swift, Minnesota, is 1. A UV Index reading of 2, and below, represents a low health threat 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
Swift, MN

Average temperature in December - Swift, MN
  • Average high temperature in December: 17.8°F

The warmest months (with the highest average high temperature) are July and August (73°F).
The month with the lowest average high temperature is January (13.8°F).

  • Average low temperature in December: 8.8°F

The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (1°F).

Average pressure in December
Swift, MN

Average pressure in December - Swift, MN
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in December
Swift, MN

Average wind speed in December - Swift, MN
  • Average wind speed in December: 8.6mph

The windiest month (with the highest average wind speed) is November (9.7mph).
The calmest month (with the lowest average wind speed) is August (7.5mph).

Average humidity in December
Swift, MN

Average humidity in December - Swift, MN
  • Average humidity in December: 91%

The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is May (69%).

Average rainfall in December
Swift, MN

Average rainfall in December - Swift, MN
  • Average rainfall in December: 0.79"

The wettest month (with the highest rainfall) is July (2.87").
The driest months (with the least rainfall) are January and February (0.67").

Average rainfall days in December
Swift, MN

Average rainfall days in December - Swift, MN
  • Average rainfall days in December: 2.3 days

The month with the highest number of rainy days is June (16.3 days).
The month with the least rainy days is January (1.5 days).

Average snowfall in December
Swift, MN

Average snowfall in December - Swift, MN
  • Average snowfall in December: 4.8"

The month with the highest snowfall is January (4.96").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Swift, MN

Average snowfall days in December - Swift, MN
  • Average snowfall days in December: 17.6 days

The month with the highest number of snowfall days is January (20.2 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in December /
Average sunshine in December
Swift, MN

Average daylight in December / Average sunshine in December - Swift, MN
  • Average daylight in December: 8h and 2min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).

  • Average sunshine in December: 2h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 1h and 54min).

Average sunshine days in December
Swift, MN

Average sunshine days in December - Swift, MN
  • Average sunshine days in December: 14.5 days

The month with the most sunshine days is August (16.9 days).
The months with the least sunshine days are March and June (11.6 days).

Average UV index in December
Swift, MN

Average UV index in December - Swift, MN
  • Average UV index in December: 1

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average cloud cover in December
Swift, MN

Average cloud cover in December - Swift, MN
  • Average cloud cover in December: 78

The month with the most cloud cover is January (Cloud cover 82).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in December
Swift, MN

Average visibility in December - Swift, MN
  • Average visibility in December: 5mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and March (4mi).

Swift, Minnesota, USA

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