December weather forecast
Old Fort, WI

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Weather in December

December, the first month of the winter in Old Fort, is also a subzero cold month, with an average temperature ranging between max 25.3°F (-3.7°C) and min 18°F (-7.8°C).

Temperature

Welcoming December, Old Fort observes a shift in the average high-temperature, falling from November's icy 37.6°F (3.1°C) to a subzero cold 25.3°F (-3.7°C). Recording a slight drop from the daily maximum, Old Fort notes an average low temperature of 18°F (-7.8°C) in the month of December.

Humidity

The average relative humidity in December in Old Fort, Wisconsin, is 87%.

Rainfall

In Old Fort, in December, during 5.8 rainfall days, 1.73" (44mm) of precipitation is typically accumulated. Throughout the year, there are 127.9 rainfall days, and 22.56" (573mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Old Fort, in December, during 20.4 snowfall days, 6.81" (173mm) of snow is typically accumulated. In Old Fort, during the entire year, snow falls for 95.5 days and aggregates up to 33.54" (852mm) of snow.

Daylight

December has the shortest days of the year, with an average of 8h and 36min of daylight.
On the first day of the month, sunrise is at 7:28 am and sunset at 4:16 pm. On the last day of December, in Old Fort, sunrise is at 7:47 am and sunset at 4:25 pm CST.

Sunshine

In December, the average sunshine in Old Fort is 2.6h.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.
Note: A daily maximum UV index of 1 in December translates into the following instructions:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
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Frequently asked questions

How cold is it in Old Fort in December?

The high-temperature, in December, in Old Fort, records 25.3°F (-3.7°C), while the low-temperature is 18°F (-7.8°C).

What is the average humidity in December in Old Fort?

In Old Fort, Wisconsin, the average relative humidity in December is 87%.

How much does it rain in Old Fort in December?

In Old Fort, during December, the rain falls for 5.8 days and regularly aggregates up to 1.73" (44mm) of precipitation.

How much does it snow in Old Fort in December?

In Old Fort, in December, during 20.4 snowfall days, 6.81" (173mm) of snow is typically accumulated.

What is the month with the shortest days in Old Fort?

December has the shortest days of the year in Old Fort, with an average of 8h and 36min of daylight.

How many hours of daylight does Old Fort have in December?

In Old Fort, Wisconsin, the average day length in December is 8h and 37min.

What time are sunrise and sunset in December in Old Fort?

In December, on the first day of the month, sunrise is at 7:28 am and sunset at 4:16 pm. On the last day of the month, in Old Fort, sunrise is at 7:47 am and sunset at 4:25 pm CST.

How many hours of sunshine does Old Fort have in December?

In Old Fort, the average sunshine duration in December is 2.6h.

What are the months with the lowest UV index in Old Fort?

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

What is the UV index intensity in December in Old Fort?

In Old Fort, the average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability 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
Old Fort, WI

Average temperature in December - Old Fort, WI
  • Average high temperature in December: 25.3°F

The warmest month (with the highest average high temperature) is August (72.5°F).
The month with the lowest average high temperature is January (20.3°F).

  • Average low temperature in December: 18°F

The month with the highest average low temperature is August (57.9°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

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Average pressure in December
Old Fort, WI

Average pressure in December - Old Fort, WI
  • Average pressure in December: 30.07"Hg

The month with the highest atmospheric pressure is February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in December
Old Fort, WI

Average wind speed in December - Old Fort, WI
  • Average wind speed in December: 10.6mph

The windiest months (with the highest average wind speed) are January and December (10.6mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).

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Average humidity in December
Old Fort, WI

Average humidity in December - Old Fort, WI
  • Average humidity in December: 87%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is May (75%).

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Average rainfall in December
Old Fort, WI

Average rainfall in December - Old Fort, WI
  • Average rainfall in December: 1.73"

The wettest months (with the highest rainfall) are May and July (2.56").
The driest months (with the least rainfall) are January and February (1.06").

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Average rainfall days in December
Old Fort, WI

Average rainfall days in December - Old Fort, WI
  • Average rainfall days in December: 5.8 days

The month with the highest number of rainy days is June (15.9 days).
The month with the least rainy days is February (3.6 days).

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Average snowfall in December
Old Fort, WI

Average snowfall in December - Old Fort, WI
  • Average snowfall in December: 6.81"

The month with the highest snowfall is January (6.85").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Old Fort, WI

Average snowfall days in December - Old Fort, WI
  • Average snowfall days in December: 20.4 days

The month with the highest number of snowfall days is January (22.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Old Fort, WI

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

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in December: 2h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).

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Average sunshine days in December
Old Fort, WI

Average sunshine days in December - Old Fort, WI
  • Average sunshine days in December: 8.7 days

The month with the most sunshine days is September (15.1 days).
The month with the least sunshine days is December (8.7 days).

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Average UV index in December
Old Fort, WI

Average UV index in December - Old Fort, 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).

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Average cloud cover in December
Old Fort, WI

Average cloud cover in December - Old Fort, WI
  • Average cloud cover in December: 74

The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in December
Old Fort, WI

Average visibility in December - Old Fort, WI
  • Average visibility in December: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

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Old Fort, Wisconsin, USA

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