December weather forecast
Ortonville, MN

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Weather in December

The first month of the winter, December, is also a subzero cold month in Ortonville, Minnesota, with an average temperature fluctuating between 24.4°F (-4.2°C) and 13.3°F (-10.4°C).

Temperature

Ortonville's December weather is characterized by a distinct downswing in high-temperatures, falling from November's cold 40.3°F (4.6°C) to a freezing cold 24.4°F (-4.2°C). During December, Ortonville records an average temperature of 13.3°F (-10.4°C) at night.

Humidity

In December, the average relative humidity in Ortonville is 85%.

Rainfall

In December, the rain falls for 4.5 days. Throughout December, 1.1" (28mm) of precipitation is accumulated. In Ortonville, Minnesota, during the entire year, the rain falls for 106.9 days and collects up to 19.84" (504mm) of precipitation.

Snowfall

Months with snowfall in Ortonville are January through May, October through December. December is the month with the most snowfall. Snow falls for 11.7 days and accumulates 4.76" (121mm) of snow.

Daylight

December has the shortest days of the year, with an average of 8h and 48min of daylight.
On the first day of December in Ortonville, sunrise is at 7:45 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 4:53 pm CST.

Sunshine

The average sunshine in December in Ortonville is 4.1h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Ortonville. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index of 1 during December translates into the following directions:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Ortonville in December?

Ortonville in December has an average high-temperature of 24.4°F (-4.2°C) and an average low-temperature of 13.3°F (-10.4°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in August is estimated at 84.2°F (29°C).

What is the average humidity in December in Ortonville?

In Ortonville, the average relative humidity in December is 85%.

How much does it rain in Ortonville in December?

In Ortonville, Minnesota, during December, the rain falls for 4.5 days and regularly aggregates up to 1.1" (28mm) of precipitation.

When does it snow the most in Ortonville?

December is the month with the most snowfall in Ortonville, Minnesota. Snow falls for 11.7 days and accumulates 4.76" (121mm) of snow.

How much does it snow in Ortonville in December?

In December, in Ortonville, it is snowing for 11.7 days. Throughout December, 4.76" (121mm) of snow is accumulated.

What is the month with the shortest days in Ortonville?

The month with the shortest days is December, with an average of 8h and 48min of daylight.

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

In Ortonville, the average day length in December is 8h and 48min.

When is the sunrise / sunset in December in Ortonville?

On the first day of December, sunrise is at 7:45 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 4:53 pm CST.

How many hours of sunshine does Ortonville have in December?

The average sunshine duration in December in Ortonville, Minnesota, is 4.1h.

What are the months with the lowest UV index in Ortonville?

The months with the lowest UV index in Ortonville, Minnesota, are January and December, with an average maximum UV index of 1.

What is the UV index reading in December in Ortonville?

In December, the average daily maximum UV index in Ortonville 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
Ortonville, MN

Average temperature in December - Ortonville, MN
  • Average high temperature in December: 24.4°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (19.6°F).

  • Average low temperature in December: 13.3°F

The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (5.5°F).

Average pressure in December
Ortonville, MN

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

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

Average wind speed in December
Ortonville, MN

Average wind speed in December - Ortonville, MN
  • Average wind speed in December: 9.9mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).

Average humidity in December
Ortonville, MN

Average humidity in December - Ortonville, MN
  • Average humidity in December: 85%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (66%).

Average rainfall in December
Ortonville, MN

Average rainfall in December - Ortonville, MN
  • Average rainfall in December: 1.1"

The wettest month (with the highest rainfall) is June (3.07").
The driest month (with the least rainfall) is February (0.55").

Average rainfall days in December
Ortonville, MN

Average rainfall days in December - Ortonville, MN
  • Average rainfall days in December: 4.5 days

The month with the highest number of rainy days is June (16.1 days).
The month with the least rainy days is February (1.8 days).

Average snowfall in December
Ortonville, MN

Average snowfall in December - Ortonville, MN
  • Average snowfall in December: 4.76"

The month with the highest snowfall is December (4.76").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Ortonville, MN

Average snowfall days in December - Ortonville, MN
  • Average snowfall days in December: 11.7 days

The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Ortonville, MN
  • Average daylight in December: 8h and 5min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in December: 4h 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: 3h and 42min).

Average sunshine days in December
Ortonville, MN

Average sunshine days in December - Ortonville, MN
  • Average sunshine days in December: 16.9 days

The months with the most sunshine days are October and November (18.7 days).
The month with the least sunshine days is June (11.4 days).

Average UV index in December
Ortonville, MN

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

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in December
Ortonville, MN

Average cloud cover in December - Ortonville, MN
  • Average cloud cover in December: 56

The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 25).

Average visibility in December
Ortonville, MN

Average visibility in December - Ortonville, 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).

Ortonville, Minnesota, USA

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