December weather forecast
Star Prairie, WI

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Weather in December

December, the first month of the winter in Star Prairie, is still a freezing cold month, with an average temperature ranging between max 24.1°F (-4.4°C) and min 13.5°F (-10.3°C).

Temperature

In Star Prairie, the onset of December is marked by a decreased average high-temperature, declining from November's cold 38.8°F (3.8°C) to a subzero cold 24.1°F (-4.4°C). Nighttime temperature in Star Prairie experiences an average drop to an extreme cold 13.5°F (-10.3°C) in December.

Humidity

In December, the average relative humidity is 89%.

Rainfall

In Star Prairie, in December, it is raining for 4.1 days, with typically 1.26" (32mm) of accumulated precipitation. Throughout the year, there are 124.4 rainfall days, and 22.64" (575mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. The month with the most snowfall is December, when snow falls for 13.6 days and typically aggregates up to 4.84" (123mm) of snow.

Daylight

December has the shortest days of the year, with an average of 8h and 48min of daylight.
On the first day of December, sunrise is at 7:29 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:48 am and sunset at 4:37 pm CST.

Sunshine

In Star Prairie, the average sunshine in December is 3.1h.

UV index

The months with the lowest UV index in Star Prairie, Wisconsin, are January, February, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.
Note: A maximum high daily UV index of 1 during December translates into the following directions:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. When the Sun is at its strongest around midday, find shade and limit exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Star Prairie in December?

December temperatures in Star Prairie, Wisconsin, vary between a high-temperature of 24.1°F (-4.4°C) and a low-temperature of 13.5°F (-10.3°C).

What is the average humidity in December in Star Prairie?

In December, the average relative humidity in Star Prairie is 89%.

How much does it rain in Star Prairie in December?

In Star Prairie, in December, it is raining for 4.1 days, with typically 1.26" (32mm) of accumulated precipitation.

When does it snow the most in Star Prairie?

December is the month with the most snowfall. Snow falls for 13.6 days and accumulates 4.84" (123mm) of snow.

How much does it snow in Star Prairie in December?

In Star Prairie, in December, during 13.6 snowfall days, 4.84" (123mm) of snow is typically accumulated.

What is the month with the shortest days in Star Prairie?

The month with the shortest days in Star Prairie is December, with an average of 8h and 48min of daylight.

What is the average length of the day in December in Star Prairie?

In Star Prairie, Wisconsin, the average day length in December is 8h and 49min.

What time are sunrise and sunset in December in Star Prairie?

In December, on the first day of the month, sunrise is at 7:29 am and sunset at 4:29 pm. On the last day of the month, in Star Prairie, Wisconsin, sunrise is at 7:48 am and sunset at 4:37 pm CST.

How many hours of sunshine does Star Prairie have in December?

In Star Prairie, Wisconsin, the average sunshine duration in December is 3.1h.

When is the lowest UV index in Star Prairie?

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

What is the UV index reading in December in Star Prairie?

In Star Prairie, the average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a minimal hazard to health from unsafe 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
Star Prairie, WI

Average temperature in December - Star Prairie, WI
  • Average high temperature in December: 24.1°F

The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (18.9°F).

  • Average low temperature in December: 13.5°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (5.5°F).

Average pressure in December
Star Prairie, WI

Average pressure in December - Star Prairie, WI
  • 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
Star Prairie, WI

Average wind speed in December - Star Prairie, WI
  • Average wind speed in December: 8.7mph

The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).

Average humidity in December
Star Prairie, WI

Average humidity in December - Star Prairie, WI
  • Average humidity in December: 89%

The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is April (75%).

Average rainfall in December
Star Prairie, WI

Average rainfall in December - Star Prairie, WI
  • Average rainfall in December: 1.26"

The wettest month (with the highest rainfall) is June (3.66").
The driest month (with the least rainfall) is January (0.67").

Average rainfall days in December
Star Prairie, WI

Average rainfall days in December - Star Prairie, WI
  • Average rainfall days in December: 4.1 days

The month with the highest number of rainy days is June (17.5 days).
The month with the least rainy days is January (2.3 days).

Average snowfall in December
Star Prairie, WI

Average snowfall in December - Star Prairie, WI
  • Average snowfall in December: 4.84"

The month with the highest snowfall is December (4.84").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Star Prairie, WI

Average snowfall days in December - Star Prairie, WI
  • Average snowfall days in December: 13.6 days

The month with the highest number of snowfall days is January (16.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Star Prairie, WI

Average daylight in December / Average sunshine in December - Star Prairie, WI
  • 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 1min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January and February (Average sunshine: 2h and 54min).

Average sunshine days in December
Star Prairie, WI

Average sunshine days in December - Star Prairie, WI
  • Average sunshine days in December: 16.1 days

The months with the most sunshine days are October and December (16.1 days).
The month with the least sunshine days is June (10 days).

Average UV index in December
Star Prairie, WI

Average UV index in December - Star Prairie, WI
  • 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
Star Prairie, WI

Average cloud cover in December - Star Prairie, WI
  • Average cloud cover in December: 68

The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in December
Star Prairie, WI

Average visibility in December - Star Prairie, WI
  • 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).

Star Prairie, Wisconsin, USA

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