December weather forecast
Glyndon, MN

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Weather in December

The first month of the winter, December, is also a subzero cold month in Glyndon, Minnesota, with an average temperature varying between 20.7°F (-6.3°C) and 10°F (-12.2°C).

Temperature

The start of December brings a distinct shift in the average high-temperature, dropping from November's wintry 37.8°F (3.2°C) to a freezing cold 20.7°F (-6.3°C). In Glyndon, an average low-temperature of 10°F (-12.2°C) is recorded during December nights.

Humidity

In December, the average relative humidity is 88%.

Rainfall

In Glyndon, during December, the rain falls for 3.4 days and regularly aggregates up to 0.83" (21mm) of precipitation. Throughout the year, there are 102.5 rainfall days, and 17.17" (436mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. December is the month with the most snowfall in Glyndon. Snow falls for 13.5 days and accumulates 4.09" (104mm) of snow.

Daylight

With an average of 8h and 36min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:51 am and sunset at 4:39 pm. On the last day of December, sunrise is at 8:11 am and sunset at 4:47 pm CST.

Sunshine

In December, the average sunshine in Glyndon is 3.4h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. To guard against the harmful effects of the Sun, minimize exposure during midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.

Frequently asked questions

How cold is it in December?

The average high-temperature, in December, in Glyndon, is 20.7°F (-6.3°C), while the average low-temperature is 10°F (-12.2°C). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, is appraised at 84.2°F (29°C).

What is the average humidity in December?

The average relative humidity in December is 88%.

How much does it rain in December?

In Glyndon, during December, the rain falls for 3.4 days and regularly aggregates up to 0.83" (21mm) of precipitation.

When does it snow the most?

December is the month with the most snowfall. Snow falls for 13.5 days and accumulates 4.09" (104mm) of snow.

How much does it snow in December?

In Glyndon, during December, snow falls for 13.5 days and regularly aggregates up to 4.09" (104mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 8h and 36min of daylight.

What is the average length of the day in December?

In December, the average day length is 8h and 36min.

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 4:39 pm. On the last day of the month, sunrise is at 8:11 am and sunset at 4:47 pm CST.

How many hours of sunshine does Glyndon have in December?

The average sunshine duration in December is 3.4h.

What is the month with the lowest UV index in Glyndon?

January 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?

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

Average temperature in December - Glyndon, MN
  • Average high temperature in December: 20.7°F

The warmest months (with the highest average high temperature) are July and August (81°F).
The month with the lowest average high temperature is January (16.2°F).

  • Average low temperature in December: 10°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (2.7°F).

Average pressure in December
Glyndon, MN

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

The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

Average wind speed in December
Glyndon, MN

Average wind speed in December - Glyndon, MN
  • Average wind speed in December: 9.8mph

The windiest month (with the highest average wind speed) is October (10.7mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).

Average humidity in December
Glyndon, MN

Average humidity in December - Glyndon, MN
  • Average humidity in December: 88%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is September (63%).

Average rainfall in December
Glyndon, MN

Average rainfall in December - Glyndon, MN
  • Average rainfall in December: 0.83"

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

Average rainfall days in December
Glyndon, MN

Average rainfall days in December - Glyndon, MN
  • Average rainfall days in December: 3.4 days

The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is February (1.7 days).

Average snowfall in December
Glyndon, MN

Average snowfall in December - Glyndon, MN
  • Average snowfall in December: 4.09"

The month with the highest snowfall is December (4.09").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Glyndon, MN

Average snowfall days in December - Glyndon, MN
  • Average snowfall days in December: 13.5 days

The month with the highest number of snowfall days is January (13.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Glyndon, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

Average sunshine days in December
Glyndon, MN

Average sunshine days in December - Glyndon, MN
  • Average sunshine days in December: 16.3 days

The month with the most sunshine days is September (19.7 days).
The month with the least sunshine days is June (11.3 days).

Average UV index in December
Glyndon, MN

Average UV index in December - Glyndon, 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
Glyndon, MN

Average cloud cover in December - Glyndon, MN
  • Average cloud cover in December: 64

The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 25).

Average visibility in December
Glyndon, MN

Average visibility in December - Glyndon, MN
  • Average visibility in December: 5mi

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, March and December (5mi).

Glyndon, Minnesota, USA

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