December weather forecast
Twin Valley, MN

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Weather in December

December, the first month of the winter in Twin Valley, is still a freezing cold month, with an average temperature fluctuating between 9°F (-12.8°C) and 20.1°F (-6.6°C).

Temperature

December brings a significant decrease in the average high-temperature, moving down from a cold 36.3°F (2.4°C) in November to a freezing cold 20.1°F (-6.6°C). Twin Valley, during December, witnesses an average low-temperature of 9°F (-12.8°C).

Humidity

The average relative humidity in December is 89%.

Rainfall

In December, the rain falls for 2.5 days. Throughout December, 0.91" (23mm) of precipitation is accumulated. In Twin Valley, during the entire year, the rain falls for 101.8 days and collects up to 17.44" (443mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. The month with the most snowfall is December, when snow falls for 13.5 days and typically aggregates up to 4.49" (114mm) of snow.

Daylight

December has the shortest days of the year, with an average of 8h and 36min of daylight.
On the first day of December, sunrise is at 7:51 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 8:11 am and sunset at 4:45 pm CST.

Sunshine

The average sunshine in December is 3.1h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum high UV index of 1 in December translates into the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Boost your sun resistance with garments that are densely woven yet spacious. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Updated: Jun 28, 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 and low-temperature during December are 20.1°F (-6.6°C) and 9°F (-12.8°C) respectively.

What is the average humidity in December?

The average relative humidity in December is 89%.

How much does it rain in December?

In Twin Valley, in December, during 2.5 rainfall days, 0.91" (23mm) of precipitation is typically accumulated.

When does it snow the most?

December is the month with the most snowfall in Twin Valley. Snow falls for 13.5 days and accumulates 4.49" (114mm) of snow.

How many days does it snow in December?

In December, it is snowing for 13.5 days. Throughout December, 4.49" (114mm) of snow is accumulated.

What is the month with the shortest days?

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

How many hours of daylight does Twin Valley have in December?

The average day length in December is 8h and 33min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:51 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 8:11 am and sunset at 4:45 pm CST.

How many hours of sunshine does Twin Valley have in December?

In Twin Valley, the average sunshine duration in December is 3.1h.

What are the months with the lowest UV index?

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

What is the UV index reading in December?

In Twin Valley, Minnesota, the average daily maximum UV index in December 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
Twin Valley, MN

Average temperature in December - Twin Valley, MN
  • Average high temperature in December: 20.1°F

The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (15.6°F).

  • Average low temperature in December: 9°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (1°F).

Average pressure in December
Twin Valley, MN

Average pressure in December - Twin Valley, MN
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

Average wind speed in December
Twin Valley, MN

Average wind speed in December - Twin Valley, MN
  • Average wind speed in December: 9.4mph

The windiest month (with the highest average wind speed) is October (10.4mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).

Average humidity in December
Twin Valley, MN

Average humidity in December - Twin Valley, MN
  • Average humidity in December: 89%

The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is August (63%).

Average rainfall in December
Twin Valley, MN

Average rainfall in December - Twin Valley, MN
  • Average rainfall in December: 0.91"

The wettest month (with the highest rainfall) is June (3.11").
The driest month (with the least rainfall) is January (0.55").

Average rainfall days in December
Twin Valley, MN

Average rainfall days in December - Twin Valley, MN
  • Average rainfall days in December: 2.5 days

The month with the highest number of rainy days is June (15.6 days).
The month with the least rainy days is January (1.5 days).

Average snowfall in December
Twin Valley, MN

Average snowfall in December - Twin Valley, MN
  • Average snowfall in December: 4.49"

The month with the highest snowfall is December (4.49").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Twin Valley, MN

Average snowfall days in December - Twin Valley, MN
  • Average snowfall days in December: 13.5 days

The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in December /
Average sunshine in December
Twin Valley, MN

Average daylight in December / Average sunshine in December - Twin Valley, MN
  • Average daylight in December: 8h and 4min

The month with the longest days is June (Average daylight: 15h and 54min).
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 48min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).

Average sunshine days in December
Twin Valley, MN

Average sunshine days in December - Twin Valley, MN
  • Average sunshine days in December: 16.8 days

The month with the most sunshine days is August (19.6 days).
The month with the least sunshine days is June (11.5 days).

Average UV index in December
Twin Valley, MN

Average UV index in December - Twin Valley, MN
  • 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, February, November and December (UV index 1).

Average cloud cover in December
Twin Valley, MN

Average cloud cover in December - Twin Valley, MN
  • Average cloud cover in December: 67

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 25).

Average visibility in December
Twin Valley, MN

Average visibility in December - Twin Valley, MN
  • Average visibility in December: 5mi

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

Twin Valley, Minnesota, USA

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