December weather forecast
Stillwater, MN

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Weather in December

The first month of the winter, December, is still a freezing cold month in Stillwater, Minnesota, with an average temperature fluctuating between 24.8°F (-4°C) and 14.7°F (-9.6°C).

Temperature

As Stillwater transitions into December, a noticeable drop in the average high-temperature is observed, falling from a wintry 40.1°F (4.5°C) in November to a subzero cold 24.8°F (-4°C). Stillwater records an average low of 14.7°F (-9.6°C) throughout the nights in December.

Humidity

In Stillwater, the average relative humidity in December is 88%.

Rainfall

In Stillwater, during December, the rain falls for 4.2 days and regularly aggregates up to 1.14" (29mm) of precipitation. In Stillwater, Minnesota, during the entire year, the rain falls for 121.8 days and collects up to 21.38" (543mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Stillwater, during December, snow falls for 13.7 days and regularly aggregates up to 4.17" (106mm) of snow. In Stillwater, Minnesota, during the entire year, snow falls for 66.7 days and aggregates up to 22.24" (565mm) of snow.

Daylight

December has the shortest days of the year in Stillwater, Minnesota, with an average of 8h and 48min of daylight.
On the first day of the month, sunrise is at 7:30 am and sunset at 4:30 pm. On the last day of December, sunrise is at 7:49 am and sunset at 4:39 pm CST.

Sunshine

In December, the average sunshine in Stillwater is 3.3h.

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 reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum UV index of 1 during December translates into these guidelines:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to 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 Stillwater in December?

Stillwater in December has an average high-temperature of 24.8°F (-4°C) and an average low-temperature of 14.7°F (-9.6°C).

What is the average humidity in December in Stillwater?

The average relative humidity in December in Stillwater, Minnesota, is 88%.

How much does it rain in Stillwater in December?

In Stillwater, Minnesota, in December, during 4.2 rainfall days, 1.14" (29mm) of precipitation is typically accumulated.

How many days does it snow in December in Stillwater?

In Stillwater, Minnesota, during December, snow falls for 13.7 days and regularly aggregates up to 4.17" (106mm) of snow.

What is the month with the shortest days in Stillwater?

December has the shortest days of the year, with an average of 8h and 48min of daylight.

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

In December, the average day length is 8h and 50min.

When is the sunrise / sunset in December in Stillwater?

In December, on the first day of the month, sunrise is at 7:30 am and sunset at 4:30 pm. On the last day of the month, in Stillwater, sunrise is at 7:49 am and sunset at 4:39 pm CST.

How many hours of sunshine does Stillwater have in December?

The average sunshine duration in December in Stillwater is 3.3h.

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

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

How high is the UV index in December in Stillwater?

In Stillwater, Minnesota, the average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes 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
Stillwater, MN

Average temperature in December - Stillwater, MN
  • Average high temperature in December: 24.8°F

The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (19.4°F).

  • Average low temperature in December: 14.7°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 (6.6°F).

Average pressure in December
Stillwater, MN

Average pressure in December - Stillwater, MN
  • Average pressure in December: 30.1"Hg

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

Average wind speed in December
Stillwater, MN

Average wind speed in December - Stillwater, MN
  • Average wind speed in December: 8.2mph

The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).

Average humidity in December
Stillwater, MN

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

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is April (73%).

Average rainfall in December
Stillwater, MN

Average rainfall in December - Stillwater, MN
  • Average rainfall in December: 1.14"

The wettest month (with the highest rainfall) is June (3.58").
The driest month (with the least rainfall) is January (0.59").

Average rainfall days in December
Stillwater, MN

Average rainfall days in December - Stillwater, MN
  • Average rainfall days in December: 4.2 days

The month with the highest number of rainy days is June (17 days).
The month with the least rainy days is February (1.9 days).

Average snowfall in December
Stillwater, MN

Average snowfall in December - Stillwater, MN
  • Average snowfall in December: 4.17"

The month with the highest snowfall is February (5.04").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Stillwater, MN

Average snowfall days in December - Stillwater, MN
  • Average snowfall days in December: 13.7 days

The month with the highest number of snowfall days is January (15.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Stillwater, 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: 3h and 2min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days in December
Stillwater, MN

Average sunshine days in December - Stillwater, MN
  • Average sunshine days in December: 16.1 days

The month with the most sunshine days is October (17 days).
The month with the least sunshine days is June (10.1 days).

Average UV index in December
Stillwater, MN

Average UV index in December - Stillwater, 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
Stillwater, MN

Average cloud cover in December - Stillwater, MN
  • Average cloud cover in December: 66

The month with the most cloud cover is January (Cloud cover 69).
The months with the least cloud cover are July and August (Cloud cover 32).

Average visibility in December
Stillwater, MN

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

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

Stillwater, Minnesota, USA

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