December weather forecast
Saint Peter, MN

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Weather in December

The first month of the winter, December, is also a subzero cold month in Saint Peter, Minnesota, with an average temperature varying between 15.3°F (-9.3°C) and 26.1°F (-3.3°C).

Temperature

The start of December is characterized by a significant decrease in the average high-temperature, moving from an icy 41.5°F (5.3°C) in November to a subzero cold 26.1°F (-3.3°C). During December, Saint Peter experiences a consistent low-temperature average of 15.3°F (-9.3°C).

Humidity

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

Rainfall

In Saint Peter, in December, during 3.4 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. In Saint Peter, during the entire year, the rain falls for 123.2 days and collects up to 22.28" (566mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall in Saint Peter. In Saint Peter, in December, during 10.1 snowfall days, 3.74" (95mm) of snow is typically accumulated. In Saint Peter, during the entire year, snow falls for 46.4 days and aggregates up to 19.13" (486mm) 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 the month, sunrise is at 7:32 am and sunset at 4:37 pm. On the last day of December, sunrise is at 7:51 am and sunset at 4:46 pm CST.

Sunshine

The average sunshine in December is 3.8h.

UV index

January, February, November 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 low threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In December, the UV index of 1 transforms into the following advice:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

In December, the average high-temperature and low-temperature are 26.1°F (-3.3°C) and 15.3°F (-9.3°C) respectively.

What is the average humidity in December?

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

How many days does it rain in December?

In Saint Peter, in December, during 3.4 rainfall days, 1.14" (29mm) of precipitation is typically accumulated.

How many days does it snow in December?

In Saint Peter, Minnesota, in December, snow falls for 10.1 days, with typically accumulated 3.74" (95mm) of snow.

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 Saint Peter, the average day length in December is 8h and 55min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:32 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:51 am and sunset at 4:46 pm CST.

How long on average sun shines in December?

In December, the average sunshine duration is 3.8h.

What are the months with 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.

How high is the UV index in December?

In December, the average daily maximum UV index 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
Saint Peter, MN

Average temperature in December - Saint Peter, MN
  • Average high temperature in December: 26.1°F

The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (21.2°F).

  • Average low temperature in December: 15.3°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 (7.7°F).

Average pressure in December
Saint Peter, MN

Average pressure in December - Saint Peter, MN
  • Average pressure in December: 30.11"Hg

The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in December
Saint Peter, MN

Average wind speed in December - Saint Peter, MN
  • Average wind speed in December: 8.6mph

The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

Average humidity in December
Saint Peter, MN

Average humidity in December - Saint Peter, MN
  • Average humidity in December: 88%

The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are April and October (70%).

Average rainfall in December
Saint Peter, MN

Average rainfall in December - Saint Peter, MN
  • Average rainfall in December: 1.14"

The wettest month (with the highest rainfall) is June (3.5").
The driest month (with the least rainfall) is January (0.63").

Average rainfall days in December
Saint Peter, MN

Average rainfall days in December - Saint Peter, MN
  • Average rainfall days in December: 3.4 days

The month with the highest number of rainy days is June (18.1 days).
The month with the least rainy days is February (2.2 days).

Average snowfall in December
Saint Peter, MN

Average snowfall in December - Saint Peter, MN
  • Average snowfall in December: 3.74"

The month with the highest snowfall is February (4.88").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Saint Peter, MN

Average snowfall days in December - Saint Peter, MN
  • Average snowfall days in December: 10.1 days

The month with the highest number of snowfall days is January (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Saint Peter, MN

Average daylight in December / Average sunshine in December - Saint Peter, 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 6min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).

Average sunshine days in December
Saint Peter, MN

Average sunshine days in December - Saint Peter, MN
  • Average sunshine days in December: 17.8 days

The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is June (9.9 days).

Average UV index in December
Saint Peter, MN

Average UV index in December - Saint Peter, 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
Saint Peter, MN

Average cloud cover in December - Saint Peter, MN
  • Average cloud cover in December: 61

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in December
Saint Peter, MN

Average visibility in December - Saint Peter, MN
  • Average visibility in December: 5mi

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

Saint Peter, Minnesota, USA

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