December weather forecast
Middle River, MN

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Weather in December

December, the first month of the winter in Middle River, is also a subzero cold month, with an average temperature ranging between min 7.5°F (-13.6°C) and max 18.5°F (-7.5°C).

Temperature

December signals a significant shift in the average high-temperature, falling from November's cold 34.3°F (1.3°C) to a freezing cold 18.5°F (-7.5°C). Nighttime temperature dips to a mean of 7.5°F (-13.6°C) during December.

Humidity

In December, the average relative humidity is 91%.

Rainfall

In Middle River, during December, the rain falls for 2.5 days and regularly aggregates up to 0.91" (23mm) of precipitation. Throughout the year, there are 104.3 rainfall days, and 18.39" (467mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. December is the month with the most snowfall. Snow falls for 16.2 days and accumulates 5.24" (133mm) of snow.

Daylight

December has the shortest days of the year, with an average of 8h and 24min of daylight.
On the first day of the month, sunrise is at 7:55 am and sunset at 4:31 pm. On the last day of December, sunrise is at 8:16 am and sunset at 4:39 pm CST.

Sunshine

In Middle River, the average sunshine in December is 2.8h.

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 reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.

Frequently asked questions

How cold is December?

In Middle River, in December, the average high-temperature is 18.5°F (-7.5°C), and the average low-temperature is 7.5°F (-13.6°C).

What is the average humidity in December?

The average relative humidity in December is 91%.

How much does it rain in December?

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

When does it snow the most?

The month with the most snowfall is December, when snow falls for 16.2 days and typically aggregates up to 5.24" (133mm) of snow.

How much does it snow in December?

In Middle River, during December, snow falls for 16.2 days and regularly aggregates up to 5.24" (133mm) of snow.

What is the month with the shortest days?

With an average of 8h and 24min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

In Middle River, the average day length in December is 8h and 23min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:55 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 8:16 am and sunset at 4:39 pm CST.

How long on average sun shines in December?

In December, the average sunshine duration is 2.8h.

What is the month with the lowest UV index?

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 intensity in December?

In Middle River, the average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a low health threat from unprotected exposure to 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
Middle River, MN

Average temperature in December - Middle River, MN
  • Average high temperature in December: 18.5°F

The warmest months (with the highest average high temperature) are July and August (78.4°F).
The month with the lowest average high temperature is January (13.8°F).

  • Average low temperature in December: 7.5°F

The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (0°F).

Average pressure in December
Middle River, MN

Average pressure in December - Middle River, MN
  • Average pressure in December: 30.11"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
Middle River, MN

Average wind speed in December - Middle River, MN
  • Average wind speed in December: 9.2mph

The windiest month (with the highest average wind speed) is October (10.1mph).
The calmest month (with the lowest average wind speed) is July (7.9mph).

Average humidity in December
Middle River, MN

Average humidity in December - Middle River, MN
  • Average humidity in December: 91%

The months with the highest relative humidity are January and February (93%).
The months with the lowest relative humidity are May and August (66%).

Average rainfall in December
Middle River, MN

Average rainfall in December - Middle River, MN
  • Average rainfall in December: 0.91"

The wettest month (with the highest rainfall) is June (3.15").
The driest months (with the least rainfall) are January and February (0.63").

Average rainfall days in December
Middle River, MN

Average rainfall days in December - Middle River, MN
  • Average rainfall days in December: 2.5 days

The month with the highest number of rainy days is June (16.3 days).
The month with the least rainy days is January (1.9 days).

Average snowfall in December
Middle River, MN

Average snowfall in December - Middle River, MN
  • Average snowfall in December: 5.24"

The month with the highest snowfall is December (5.24").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Middle River, MN

Average snowfall days in December - Middle River, MN
  • Average snowfall days in December: 16.2 days

The month with the highest number of snowfall days is December (16.2 days).
The months with the least snowfall days are June, July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in December: 2h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).

Average sunshine days in December
Middle River, MN

Average sunshine days in December - Middle River, MN
  • Average sunshine days in December: 15.2 days

The month with the most sunshine days is August (18.5 days).
The month with the least sunshine days is June (11.3 days).

Average UV index in December
Middle River, MN

Average UV index in December - Middle River, 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
Middle River, MN

Average cloud cover in December - Middle River, MN
  • Average cloud cover in December: 72

The months with the most cloud cover are January and February (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in December
Middle River, MN

Average visibility in December - Middle River, MN
  • Average visibility in December: 4mi

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 December (4mi).

Middle River, Minnesota, USA

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