December weather forecast
Waupun, WI

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Weather in December

The first month of the winter, December, is also a subzero cold month in Waupun, Wisconsin, with an average temperature varying between 19.2°F (-7.1°C) and 29.1°F (-1.6°C).

Temperature

December brings a minor decrease, with the average high-temperature reducing from a cold 41.9°F (5.5°C) in November to a subzero cold 29.1°F (-1.6°C). Waupun experiences a nighttime temperature average of 19.2°F (-7.1°C) during December.

Humidity

In December, the average relative humidity is 85%.

Rainfall

In December, the rain falls for 5.1 days. Throughout December, 1.02" (26mm) of precipitation is accumulated. In Waupun, during the entire year, the rain falls for 130.7 days and collects up to 21.38" (543mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In Waupun, during December, snow falls for 13 days and regularly aggregates up to 2.87" (73mm) of snow. Throughout the year, there are 56.5 snowfall days, and 15.04" (382mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 0min of daylight.
On the first day of December in Waupun, sunrise is at 7:09 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:28 pm CST.

Sunshine

In December, the average sunshine is 3.7h.

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 low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum high daily UV index of 1 during December translates into the following directions:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
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Frequently asked questions

How cold is it in Waupun in December?

In Waupun, 29.1°F (-1.6°C) is the average high-temperature and 19.2°F (-7.1°C) is the average low-temperature during December.

What is the average humidity in December in Waupun?

The average relative humidity in December in Waupun is 85%.

How much does it rain in Waupun in December?

In Waupun, Wisconsin, during December, the rain falls for 5.1 days and regularly aggregates up to 1.02" (26mm) of precipitation.

How many days does it snow in December in Waupun?

In December, in Waupun, it is snowing for 13 days. Throughout December, 2.87" (73mm) of snow is accumulated.

What is the month with the shortest days in Waupun?

The month with the shortest days in Waupun, Wisconsin, is December, with an average of 9h and 0min of daylight.

How many hours of daylight does Waupun have in December?

The average day length in December in Waupun, Wisconsin, is 9h and 0min.

When is the sunrise / sunset in December in Waupun?

On the first day of December, sunrise is at 7:09 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:28 pm CST.

How many hours of sunshine does Waupun have in December?

In Waupun, Wisconsin, the average sunshine duration in December is 3.7h.

When is the lowest UV index in Waupun?

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

How high is the UV index in December in Waupun?

In Waupun, Wisconsin, the average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a low health risk 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
Waupun, WI

Average temperature in December - Waupun, WI
  • Average high temperature in December: 29.1°F

The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (22.5°F).

  • Average low temperature in December: 19.2°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

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Average pressure in December
Waupun, WI

Average pressure in December - Waupun, WI
  • Average pressure in December: 30.08"Hg

The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in December
Waupun, WI

Average wind speed in December - Waupun, WI
  • Average wind speed in December: 9.5mph

The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).

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Average humidity in December
Waupun, WI

Average humidity in December - Waupun, WI
  • Average humidity in December: 85%

The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is April (76%).

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Average rainfall in December
Waupun, WI

Average rainfall in December - Waupun, WI
  • Average rainfall in December: 1.02"

The wettest months (with the highest rainfall) are May and June (2.76").
The driest month (with the least rainfall) is February (0.87").

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Average rainfall days in December
Waupun, WI

Average rainfall days in December - Waupun, WI
  • Average rainfall days in December: 5.1 days

The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is February (3 days).

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Average snowfall in December
Waupun, WI

Average snowfall in December - Waupun, WI
  • Average snowfall in December: 2.87"

The month with the highest snowfall is January (3.94").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Waupun, WI

Average snowfall days in December - Waupun, WI
  • Average snowfall days in December: 13 days

The month with the highest number of snowfall days is January (13.8 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
Waupun, WI

Average daylight in December / Average sunshine in December - Waupun, WI
  • Average daylight in December: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in December: 3h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).

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Average sunshine days in December
Waupun, WI

Average sunshine days in December - Waupun, WI
  • Average sunshine days in December: 16 days

The month with the most sunshine days is November (16.1 days).
The months with the least sunshine days are June and July (12.1 days).

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Average UV index in December
Waupun, WI

Average UV index in December - Waupun, WI
  • Average UV index in December: 1

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).

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Average cloud cover in December
Waupun, WI

Average cloud cover in December - Waupun, WI
  • Average cloud cover in December: 63

The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 33).

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Average visibility in December
Waupun, WI

Average visibility in December - Waupun, WI
  • Average visibility in December: 5mi

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

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Waupun, Wisconsin, USA

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