December weather forecast
Grygla, MN

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Weather in December

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

Temperature

The arrival of December is marked by a notable decrease in high-temperatures, falling from an icy 34.3°F (1.3°C) in November to a freezing cold 18.5°F (-7.5°C). December brings with it a nighttime average temperature of 7.5°F (-13.6°C).

Humidity

The average relative humidity in December is 91%.

Rainfall

In Grygla, in December, it is raining for 2.5 days, with typically 0.91" (23mm) of accumulated precipitation. In Grygla, during the entire year, the rain falls for 104.3 days and collects up to 18.39" (467mm) 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 16.2 days and typically aggregates up to 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 7:53 am and sunset at 4:30 pm. On the last day of December, sunrise is at 8:13 am and sunset at 4:38 pm CST.

Sunshine

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 value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: An average maximum UV index of 1 in December leads to these recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.

Frequently asked questions

How cold is December?

The average high-temperature and low-temperature during December are 18.5°F (-7.5°C) and 7.5°F (-13.6°C) respectively.

What is the average humidity in December?

In December, the average relative humidity is 91%.

How much does it rain in Grygla in December?

In December, the rain falls for 2.5 days. Throughout December, 0.91" (23mm) of precipitation is accumulated.

When does it snow the most?

December is the month with the most snowfall. Snow falls for 16.2 days and accumulates 5.24" (133mm) of snow.

How much does it snow in December?

In Grygla, 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?

The month with the shortest days is December, with an average of 8h and 24min of daylight.

What is the average length of the day in December?

The average day length in December is 8h and 25min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:53 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 8:13 am and sunset at 4:38 pm CST.

How many hours of sunshine does Grygla have in December?

In Grygla, the average sunshine duration in December is 2.8h.

When is 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 intensity in December?

In Grygla, the average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Grygla, MN

Average temperature in December - Grygla, 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
Grygla, MN

Average pressure in December - Grygla, 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
Grygla, MN

Average wind speed in December - Grygla, 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
Grygla, MN

Average humidity in December - Grygla, 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
Grygla, MN

Average rainfall in December - Grygla, 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
Grygla, MN

Average rainfall days in December - Grygla, 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
Grygla, MN

Average snowfall in December - Grygla, 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
Grygla, MN

Average snowfall days in December - Grygla, 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
Grygla, MN

Average daylight in December / Average sunshine in December - Grygla, 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
Grygla, MN

Average sunshine days in December - Grygla, 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
Grygla, MN

Average UV index in December - Grygla, 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
Grygla, MN

Average cloud cover in December - Grygla, 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
Grygla, MN

Average visibility in December - Grygla, 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).

Grygla, Minnesota, USA

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