December weather forecast
Grand Rapids, MN

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Weather in December

The first month of the winter, December, is still a freezing cold month in Grand Rapids, Minnesota, with an average temperature ranging between max 20.7°F (-6.3°C) and min 9.3°F (-12.6°C).

Temperature

In Grand Rapids, the average high-temperature in December decreases from an icy 34.9°F (1.6°C) in November to a freezing cold 20.7°F (-6.3°C). During the month of December, Grand Rapids anticipates a mean low-temperature of 9.3°F (-12.6°C).

Humidity

The average relative humidity in December is 90%.

Rainfall

In Grand Rapids, during December, the rain falls for 2.6 days and regularly aggregates up to 1.02" (26mm) of precipitation. Throughout the year, there are 113.8 rainfall days, and 18.94" (481mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. December is the month with the most snowfall. Snow falls for 19.9 days and accumulates 7.2" (183mm) of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 36min of daylight.
On the first day of December, sunrise is at 7:40 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 8:00 am and sunset at 4:34 pm CST.

Sunshine

In Grand Rapids, the average sunshine in December is 2.4h.

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 estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 1 in December interprets into the following advice:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Updated: Jul 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

An average high-temperature, in December, in Grand Rapids, is 20.7°F (-6.3°C) and the average low-temperature is 9.3°F (-12.6°C).

What is the average humidity in December?

In December, the average relative humidity in Grand Rapids, Minnesota, is 90%.

How much does it rain in Grand Rapids in December?

In Grand Rapids, Minnesota, in December, during 2.6 rainfall days, 1.02" (26mm) of precipitation is typically accumulated.

What is the snowiest month?

December is the month with the most snowfall. Snow falls for 19.9 days and accumulates 7.2" (183mm) of snow.

How many days does it snow in December?

In Grand Rapids, in December, during 19.9 snowfall days, 7.2" (183mm) of snow is typically accumulated.

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.

How many hours of daylight does Grand Rapids have in December?

In Grand Rapids, the average day length in December is 8h and 34min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:40 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 8:00 am and sunset at 4:34 pm CST.

How long on average sun shines in December?

The average sunshine duration in December in Grand Rapids is 2.4h.

What are the months with the lowest UV index?

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Grand Rapids.

What is the UV index reading in December?

In Grand Rapids, the average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a low health risk 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
Grand Rapids, MN

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

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (15.8°F).

  • Average low temperature in December: 9.3°F

The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (1.4°F).

Average pressure in December
Grand Rapids, MN

Average pressure in December - Grand Rapids, MN
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in December
Grand Rapids, MN

Average wind speed in December - Grand Rapids, MN
  • Average wind speed in December: 6.8mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity in December
Grand Rapids, MN

Average humidity in December - Grand Rapids, MN
  • Average humidity in December: 90%

The months with the highest relative humidity are January and February (93%).
The month with the lowest relative humidity is May (70%).

Average rainfall in December
Grand Rapids, MN

Average rainfall in December - Grand Rapids, MN
  • Average rainfall in December: 1.02"

The wettest month (with the highest rainfall) is June (2.91").
The driest months (with the least rainfall) are January and February (0.75").

Average rainfall days in December
Grand Rapids, MN

Average rainfall days in December - Grand Rapids, MN
  • Average rainfall days in December: 2.6 days

The month with the highest number of rainy days is June (16.4 days).
The month with the least rainy days is February (2.3 days).

Average snowfall in December
Grand Rapids, MN

Average snowfall in December - Grand Rapids, MN
  • Average snowfall in December: 7.2"

The month with the highest snowfall is December (7.2").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Grand Rapids, MN

Average snowfall days in December - Grand Rapids, MN
  • Average snowfall days in December: 19.9 days

The month with the highest number of snowfall days is January (21.1 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in December /
Average sunshine in December
Grand Rapids, MN

Average daylight in December / Average sunshine in December - Grand Rapids, MN
  • Average daylight in December: 8h and 4min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in December: 2h and 2min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 1h and 54min).

Average sunshine days in December
Grand Rapids, MN

Average sunshine days in December - Grand Rapids, MN
  • Average sunshine days in December: 12.3 days

The months with the most sunshine days are August and September (16.5 days).
The month with the least sunshine days is February (10.1 days).

Average UV index in December
Grand Rapids, MN

Average UV index in December - Grand Rapids, 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
Grand Rapids, MN

Average cloud cover in December - Grand Rapids, MN
  • Average cloud cover in December: 76

The month with the most cloud cover is January (Cloud cover 81).
The month with the least cloud cover is July (Cloud cover 36).

Average visibility in December
Grand Rapids, MN

Average visibility in December - Grand Rapids, MN
  • Average visibility in December: 4mi

The months with the highest visibility are May and June (6mi).
The months with the lowest visibility are January, February, March and December (4mi).

Grand Rapids, Minnesota, USA

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