December weather forecast
Morton, MN

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Weather in December

December, the first month of the winter in Morton, is also a subzero cold month, with temperature in the range of an average high of 25.5°F (-3.6°C) and an average low of 14.4°F (-9.8°C).

Temperature

December indicates a noticeable reduction in the average high-temperature, moving down from a wintry 41.4°F (5.2°C) in November to a subzero cold 25.5°F (-3.6°C). During December, Morton consistently records a temperature low averaging a still freezing cold 14.4°F (-9.8°C).

Humidity

In December, the average relative humidity in Morton is 86%.

Rainfall

In Morton, during December, the rain falls for 2.5 days and regularly aggregates up to 0.67" (17mm) of precipitation. In Morton, during the entire year, the rain falls for 98 days and collects up to 14.61" (371mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In December, it is snowing for 10.4 days. Throughout December, 2.6" (66mm) of snow is accumulated. In Morton, during the entire year, snow falls for 46.9 days and aggregates up to 13.27" (337mm) of snow.

Daylight

December has the shortest days of the year, with an average of 8h and 54min of daylight.
On the first day of December, sunrise is at 7:37 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:56 am and sunset at 4:50 pm CST.

Sunshine

In December, the average sunshine is 3.9h.

UV index

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Morton. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 1 in December transforms into the following instructions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Direct Sun exposure should be minimized especially during midday when radiation is most intense. During bright days, sunglasses that offer UVA and UVB defense are recommended. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Updated: Jul 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

Morton in December has an average high-temperature of 25.5°F (-3.6°C) and an average low-temperature of 14.4°F (-9.8°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, in July is evaluated at 86°F (30°C).

What is the average humidity in December?

In December, the average relative humidity in Morton is 86%.

How much does it rain in December?

In Morton, during December, the rain falls for 2.5 days and regularly aggregates up to 0.67" (17mm) of precipitation.

How many days does it snow in December?

In Morton, in December, during 10.4 snowfall days, 2.6" (66mm) of snow is typically accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 8h and 54min of daylight.

What is the average length of the day in December?

In December, the average day length is 8h and 53min.

When is the sunrise / sunset in December?

On the first day of December in Morton, sunrise is at 7:37 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:56 am and sunset at 4:50 pm CST.

How many hours of sunshine does Morton have in December?

In Morton, the average sunshine duration in December is 3.9h.

When is 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 reading in December in Morton?

In Morton, the average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a minimal hazard to health 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
Morton, MN

Average temperature in December - Morton, MN
  • Average high temperature in December: 25.5°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (20.3°F).

  • Average low temperature in December: 14.4°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (6.6°F).

Average pressure in December
Morton, MN

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

The months with the highest atmospheric pressure are January and February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in December
Morton, MN

Average wind speed in December - Morton, MN
  • Average wind speed in December: 9.6mph

The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).

Average humidity in December
Morton, MN

Average humidity in December - Morton, MN
  • Average humidity in December: 86%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is May (67%).

Average rainfall in December
Morton, MN

Average rainfall in December - Morton, MN
  • Average rainfall in December: 0.67"

The wettest month (with the highest rainfall) is June (2.32").
The driest month (with the least rainfall) is January (0.39").

Average rainfall days in December
Morton, MN

Average rainfall days in December - Morton, 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 February (1.3 days).

Average snowfall in December
Morton, MN

Average snowfall in December - Morton, MN
  • Average snowfall in December: 2.6"

The month with the highest snowfall is February (3.19").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Morton, MN

Average snowfall days in December - Morton, MN
  • Average snowfall days in December: 10.4 days

The month with the highest number of snowfall days is January (10.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in December: 3h and 5min

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 36min).

Average sunshine days in December
Morton, MN

Average sunshine days in December - Morton, MN
  • Average sunshine days in December: 19.7 days

The month with the most sunshine days is October (21.7 days).
The month with the least sunshine days is June (12.9 days).

Average UV index in December
Morton, MN

Average UV index in December - Morton, 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, February, November and December (UV index 1).

Average cloud cover in December
Morton, MN

Average cloud cover in December - Morton, MN
  • Average cloud cover in December: 59

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in December
Morton, MN

Average visibility in December - Morton, 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).

Morton, Minnesota, USA

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