December weather forecast
Round Lake, MN

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Weather in December

The first month of the winter, December, is also a subzero cold month in Round Lake, Minnesota, with temperature in the range of an average high of 26.2°F (-3.2°C) and an average low of 15.4°F (-9.2°C).

Temperature

As Round Lake transitions into December, a marked decrease in the average high-temperature is observed, dropping from an icy 41.7°F (5.4°C) in November to a freezing cold 26.2°F (-3.2°C). Round Lake temperatures generally rest at a low of 15.4°F (-9.2°C) during the December nights.

Humidity

The average relative humidity in December is 86%.

Rainfall

In December, the rain falls for 5.1 days. Throughout December, 1.38" (35mm) of precipitation is accumulated. In Round Lake, Minnesota, during the entire year, the rain falls for 130.6 days and collects up to 24.57" (624mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Round Lake, in December, during 13.8 snowfall days, 4.69" (119mm) of snow is typically accumulated. Throughout the year, there are 62.3 snowfall days, and 26.18" (665mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 0min of daylight.
On the first day of December in Round Lake, sunrise is at 7:35 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:54 am and sunset at 4:55 pm CST.

Sunshine

In Round Lake, the average sunshine in December is 4.2h.

UV index

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index, 2 during December, leads to the following recommendations:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Updated: Jun 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

The average high-temperature, in December, in Round Lake, is 26.2°F (-3.2°C), while the average low-temperature is 15.4°F (-9.2°C).

What is the average humidity in December?

In December, the average relative humidity is 86%.

How much does it rain in December?

In Round Lake, in December, it is raining for 5.1 days, with typically 1.38" (35mm) of accumulated precipitation.

How much does it snow in December?

In Round Lake, during December, snow falls for 13.8 days and regularly aggregates up to 4.69" (119mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 0min of daylight.

How many hours of daylight does Round Lake have in December?

In December, the average day length is 9h and 1min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:35 am and sunset at 4:46 pm. On the last day of the month, in Round Lake, sunrise is at 7:54 am and sunset at 4:55 pm CST.

How many hours of sunshine does Round Lake have in December?

In December, the average sunshine duration is 4.2h.

What is the UV index intensity in December in Round Lake?

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health threat 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 December
Round Lake, MN

Average temperature in December - Round Lake, MN
  • Average high temperature in December: 26.2°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (21.6°F).

  • Average low temperature in December: 15.4°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (8.6°F).

Average pressure in December
Round Lake, MN

Average pressure in December - Round Lake, MN
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in December
Round Lake, MN

Average wind speed in December - Round Lake, MN
  • Average wind speed in December: 11mph

The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is July (8mph).

Average humidity in December
Round Lake, MN

Average humidity in December - Round Lake, MN
  • Average humidity in December: 86%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (68%).

Average rainfall in December
Round Lake, MN

Average rainfall in December - Round Lake, MN
  • Average rainfall in December: 1.38"

The wettest month (with the highest rainfall) is June (3.78").
The driest month (with the least rainfall) is January (0.83").

Average rainfall days in December
Round Lake, MN

Average rainfall days in December - Round Lake, MN
  • Average rainfall days in December: 5.1 days

The month with the highest number of rainy days is June (19 days).
The month with the least rainy days is February (2.9 days).

Average snowfall in December
Round Lake, MN

Average snowfall in December - Round Lake, MN
  • Average snowfall in December: 4.69"

The month with the highest snowfall is February (6.22").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Round Lake, MN

Average snowfall days in December - Round Lake, MN
  • Average snowfall days in December: 13.8 days

The month with the highest number of snowfall days is January (14.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Round Lake, MN

Average daylight in December / Average sunshine in December - Round Lake, MN
  • Average daylight in December: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in December: 4h 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: 3h and 54min).

Average sunshine days in December
Round Lake, MN

Average sunshine days in December - Round Lake, MN
  • Average sunshine days in December: 15.5 days

The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is June (8.7 days).

Average UV index in December
Round Lake, MN

Average UV index in December - Round Lake, MN
  • Average UV index in December: 2

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

Average cloud cover in December
Round Lake, MN

Average cloud cover in December - Round Lake, MN
  • Average cloud cover in December: 56

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in December
Round Lake, MN

Average visibility in December - Round Lake, MN
  • 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).

Round Lake, Minnesota, USA

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