December weather forecast
Knife River, MN

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Weather in December

December, the first month of the winter in Knife River, is also a subzero cold month, with an average temperature varying between 22.8°F (-5.1°C) and 13.3°F (-10.4°C).

Temperature

December's arrival coincides with a drop in the average high-temperature, decreasing from November's icy 35.6°F (2°C) to a freezing cold 22.8°F (-5.1°C). Knife River records an average nighttime low-temperature of 13.3°F (-10.4°C) throughout December.

Humidity

In December, the average relative humidity is 88%.

Rainfall

In Knife River, during December, the rain falls for 3.7 days and regularly aggregates up to 1.46" (37mm) of precipitation. In Knife River, during the entire year, the rain falls for 115 days and collects up to 21.5" (546mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. The month with the most snowfall is December, when snow falls for 16 days and typically aggregates up to 6.1" (155mm) of snow.

Daylight

With an average of 8h and 36min of daylight, December has the shortest days of the year in Knife River.
On the first day of the month, sunrise is at 7:32 am and sunset at 4:20 pm. On the last day of December, sunrise is at 7:52 am and sunset at 4:28 pm CST.

Sunshine

In Knife River, the average sunshine in December is 3.2h.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Knife River, Minnesota. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index of 1 during December translates into these guidelines:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Knife River?

Knife River in December has an average high-temperature of 22.8°F (-5.1°C) and an average low-temperature of 13.3°F (-10.4°C).

What is the average humidity in December in Knife River?

The average relative humidity in December in Knife River, Minnesota, is 88%.

How many days does it rain in December in Knife River?

In Knife River, in December, it is raining for 3.7 days, with typically 1.46" (37mm) of accumulated precipitation.

What is the snowiest month in Knife River?

The month with the most snowfall is December, when snow falls for 16 days and typically aggregates up to 6.1" (155mm) of snow.

How many days does it snow in December in Knife River?

In Knife River, in December, during 16 snowfall days, 6.1" (155mm) of snow is typically accumulated.

What is the month with the shortest days in Knife River?

With an average of 8h and 36min of daylight, December has the shortest days of the year in Knife River, Minnesota.

How many hours of daylight does Knife River have in December?

The average day length in December in Knife River is 8h and 35min.

When is the sunrise / sunset in December in Knife River?

On the first day of December in Knife River, Minnesota, sunrise is at 7:32 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:52 am and sunset at 4:28 pm CST.

How many hours of sunshine does Knife River have in December?

In Knife River, Minnesota, the average sunshine duration in December is 3.2h.

What are the months with the lowest UV index in Knife River?

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

How high is the UV index in December in Knife River?

The average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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
Knife River, MN

Average temperature in December - Knife River, MN
  • Average high temperature in December: 22.8°F

The warmest month (with the highest average high temperature) is August (72.3°F).
The month with the lowest average high temperature is January (17.6°F).

  • Average low temperature in December: 13.3°F

The month with the highest average low temperature is July (56.7°F).
The coldest month (with the lowest average low temperature) is January (6.3°F).

Average pressure in December
Knife River, MN

Average pressure in December - Knife River, MN
  • Average pressure in December: 30.08"Hg

The month with the highest atmospheric pressure is February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in December
Knife River, MN

Average wind speed in December - Knife River, MN
  • Average wind speed in December: 9.5mph

The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).

Average humidity in December
Knife River, MN

Average humidity in December - Knife River, MN
  • Average humidity in December: 88%

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

Average rainfall in December
Knife River, MN

Average rainfall in December - Knife River, MN
  • Average rainfall in December: 1.46"

The wettest month (with the highest rainfall) is July (2.87").
The driest month (with the least rainfall) is January (0.83").

Average rainfall days in December
Knife River, MN

Average rainfall days in December - Knife River, MN
  • Average rainfall days in December: 3.7 days

The month with the highest number of rainy days is June (14.7 days).
The month with the least rainy days is February (1.9 days).

Average snowfall in December
Knife River, MN

Average snowfall in December - Knife River, MN
  • Average snowfall in December: 6.1"

The month with the highest snowfall is December (6.1").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Knife River, MN

Average snowfall days in December - Knife River, MN
  • Average snowfall days in December: 16 days

The month with the highest number of snowfall days is January (18.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Knife River, MN

Average daylight in December / Average sunshine in December - Knife River, MN
  • 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: 3h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).

Average sunshine days in December
Knife River, MN

Average sunshine days in December - Knife River, MN
  • Average sunshine days in December: 13.5 days

The month with the most sunshine days is October (15.7 days).
The month with the least sunshine days is February (12.6 days).

Average UV index in December
Knife River, MN

Average UV index in December - Knife River, MN
  • Average UV index in December: 1

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

Average cloud cover in December
Knife River, MN

Average cloud cover in December - Knife River, MN
  • Average cloud cover in December: 67

The month with the most cloud cover is January (Cloud cover 69).
The months with the least cloud cover are July and August (Cloud cover 32).

Average visibility in December
Knife River, MN

Average visibility in December - Knife River, MN
  • Average visibility in December: 5mi

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

Knife River, Minnesota, USA

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