December weather forecast
Iron Belt, WI

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Weather in December

The first month of the winter, December, is still a freezing cold month in Iron Belt, Wisconsin, with an average temperature ranging between max 24.4°F (-4.2°C) and min 16.7°F (-8.5°C).

Temperature

In Iron Belt, the average high-temperature in December drops from a wintry 36.5°F (2.5°C) in November to a freezing cold 24.4°F (-4.2°C). Iron Belt's nighttime temperature in December shows a minor descent, with a steady average of 16.7°F (-8.5°C).

Humidity

In December, the average relative humidity is 89%.

Rainfall

In Iron Belt, in December, during 3.8 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. Throughout the year, in Iron Belt, there are 104.6 rainfall days, and 16.5" (419mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Iron Belt. The month with the most snowfall is December, when snow falls for 22 days and typically aggregates up to 8.35" (212mm) of snow.

Daylight

With an average of 8h and 42min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:24 am and sunset at 4:16 pm. On the last day of December, sunrise is at 7:44 am and sunset at 4:24 pm CST.

Sunshine

In December, the average sunshine is 2.2h.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

The average high-temperature and low-temperature in Iron Belt, Wisconsin, during December are 24.4°F (-4.2°C) and 16.7°F (-8.5°C) respectively.

What is the average humidity in December?

The average relative humidity in December is 89%.

How much does it rain in December?

In Iron Belt, in December, during 3.8 rainfall days, 1.26" (32mm) of precipitation is typically accumulated.

When does it snow the most?

The month with the most snowfall is December, when snow falls for 22 days and typically aggregates up to 8.35" (212mm) of snow.

How many days does it snow in December?

In Iron Belt, in December, during 22 snowfall days, 8.35" (212mm) of snow is typically accumulated.

What is the month with the shortest days?

December has the shortest days of the year in Iron Belt, with an average of 8h and 42min of daylight.

What is the average length of the day in December?

In Iron Belt, the average day length in December is 8h and 40min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:24 am and sunset at 4:16 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 4:24 pm CST.

How many hours of sunshine does Iron Belt have in December?

In Iron Belt, Wisconsin, the average sunshine duration in December is 2.2h.

When is the lowest UV index?

January, 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 Iron Belt, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a low health threat from unprotected exposure to 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
Iron Belt, WI

Average temperature in December - Iron Belt, WI
  • Average high temperature in December: 24.4°F

The warmest month (with the highest average high temperature) is July (76.3°F).
The month with the lowest average high temperature is January (19.2°F).

  • Average low temperature in December: 16.7°F

The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (9°F).

Average pressure in December
Iron Belt, WI

Average pressure in December - Iron Belt, WI
  • Average pressure in December: 30.07"Hg

The months with the highest atmospheric pressure are February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in December
Iron Belt, WI

Average wind speed in December - Iron Belt, WI
  • Average wind speed in December: 9.4mph

The windiest months (with the highest average wind speed) are January and November (9.6mph).
The calmest months (with the lowest average wind speed) are June, July and August (7mph).

Average humidity in December
Iron Belt, WI

Average humidity in December - Iron Belt, WI
  • Average humidity in December: 89%

The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is May (72%).

Average rainfall in December
Iron Belt, WI

Average rainfall in December - Iron Belt, WI
  • Average rainfall in December: 1.26"

The wettest month (with the highest rainfall) is May (1.89").
The driest month (with the least rainfall) is February (0.91").

Average rainfall days in December
Iron Belt, WI

Average rainfall days in December - Iron Belt, WI
  • Average rainfall days in December: 3.8 days

The month with the highest number of rainy days is June (13.1 days).
The month with the least rainy days is January (1.8 days).

Average snowfall in December
Iron Belt, WI

Average snowfall in December - Iron Belt, WI
  • Average snowfall in December: 8.35"

The month with the highest snowfall is December (8.35").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Iron Belt, WI

Average snowfall days in December - Iron Belt, WI
  • Average snowfall days in December: 22 days

The month with the highest number of snowfall days is January (23.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Iron Belt, WI

Average daylight in December / Average sunshine in December - Iron Belt, WI
  • Average daylight in December: 8h and 4min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in December: 2h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 1h and 54min).

Average sunshine days in December
Iron Belt, WI

Average sunshine days in December - Iron Belt, WI
  • Average sunshine days in December: 8.3 days

The month with the most sunshine days is July (16.3 days).
The month with the least sunshine days is January (7.8 days).

Average UV index in December
Iron Belt, WI

Average UV index in December - Iron Belt, 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, November and December (UV index 1).

Average cloud cover in December
Iron Belt, WI

Average cloud cover in December - Iron Belt, WI
  • Average cloud cover in December: 78

The month with the most cloud cover is January (Cloud cover 82).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in December
Iron Belt, WI

Average visibility in December - Iron Belt, WI
  • Average visibility in December: 5mi

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

Iron Belt, Wisconsin, USA

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