December weather forecast
Spring Green, WI

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Weather in December

December, the first month of the winter in Spring Green, is still a freezing cold month, with an average temperature ranging between min 18.9°F (-7.3°C) and max 29.3°F (-1.5°C).

Temperature

December implies a gentle temperature shift, with average high-temperatures reducing from November's icy 42.6°F (5.9°C) to a subzero cold 29.3°F (-1.5°C). Spring Green's average low-temperature for the month of December records at 18.9°F (-7.3°C).

Humidity

In December, the average relative humidity in Spring Green is 85%.

Rainfall

In December, the rain falls for 5.4 days. Throughout December, 0.71" (18mm) of precipitation is accumulated. In Spring Green, during the entire year, the rain falls for 122.9 days and collects up to 17.76" (451mm) of precipitation.

Snowfall

Months with snowfall in Spring Green are January through April, October through December. In Spring Green, in December, during 10.5 snowfall days, 1.77" (45mm) of snow is typically accumulated. Throughout the year, in Spring Green, there are 51.6 snowfall days, and 12.17" (309mm) of snow is accumulated.

Daylight

The month with the shortest days in Spring Green is December, with an average of 9h and 6min of daylight.
On the first day of December in Spring Green, sunrise is at 7:13 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 4:35 pm CST.

Sunshine

In Spring Green, the average sunshine in December is 3.7h.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Spring Green. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.
Note: In December, the maximum UV index of 1 suggests these recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
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Frequently asked questions

How cold is December in Spring Green?

December temperatures in Spring Green, Wisconsin, vary between a high-temperature of 29.3°F (-1.5°C) and a low-temperature of 18.9°F (-7.3°C).

What is the average humidity in December in Spring Green?

In Spring Green, the average relative humidity in December is 85%.

How many days does it rain in December in Spring Green?

In Spring Green, in December, it is raining for 5.4 days, with typically 0.71" (18mm) of accumulated precipitation.

How much does it snow in Spring Green in December?

In December, in Spring Green, Wisconsin, it is snowing for 10.5 days. Throughout December, 1.77" (45mm) of snow is accumulated.

What is the month with the shortest days in Spring Green?

December has the shortest days of the year, with an average of 9h and 6min of daylight.

How many hours of daylight does Spring Green have in December?

The average day length in December in Spring Green, Wisconsin, is 9h and 3min.

When is the sunrise / sunset in December in Spring Green?

On the first day of December, sunrise is at 7:13 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 4:35 pm CST.

How long on average sun shines in December in Spring Green?

The average sunshine duration in December in Spring Green is 3.7h.

When is the lowest UV index in Spring Green?

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

What is the UV index reading in December in Spring Green?

In Spring Green, Wisconsin, the average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents 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
Spring Green, WI

Average temperature in December - Spring Green, WI
  • Average high temperature in December: 29.3°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (23.4°F).

  • Average low temperature in December: 18.9°F

The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (10°F).

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Average pressure in December
Spring Green, WI

Average pressure in December - Spring Green, WI
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in December
Spring Green, WI

Average wind speed in December - Spring Green, WI
  • Average wind speed in December: 9.1mph

The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

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Average humidity in December
Spring Green, WI

Average humidity in December - Spring Green, 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 (77%).

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Average rainfall in December
Spring Green, WI

Average rainfall in December - Spring Green, WI
  • Average rainfall in December: 0.71"

The wettest month (with the highest rainfall) is July (2.32").
The driest month (with the least rainfall) is January (0.63").

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Average rainfall days in December
Spring Green, WI

Average rainfall days in December - Spring Green, WI
  • Average rainfall days in December: 5.4 days

The month with the highest number of rainy days is June (16.3 days).
The month with the least rainy days is January (3.2 days).

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Average snowfall in December
Spring Green, WI

Average snowfall in December - Spring Green, WI
  • Average snowfall in December: 1.77"

The month with the highest snowfall is February (2.91").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Spring Green, WI

Average snowfall days in December - Spring Green, WI
  • Average snowfall days in December: 10.5 days

The month with the highest number of snowfall days is February (13 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
Spring Green, WI

Average daylight in December / Average sunshine in December - Spring Green, WI
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in December: 3h and 4min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

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Average sunshine days in December
Spring Green, WI

Average sunshine days in December - Spring Green, WI
  • Average sunshine days in December: 17.3 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is June (10.9 days).

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Average UV index in December
Spring Green, WI

Average UV index in December - Spring Green, WI
  • Average UV index in December: 1

The months with the highest UV index are 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
Spring Green, WI

Average cloud cover in December - Spring Green, WI
  • Average cloud cover in December: 63

The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 34).

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Average visibility in December
Spring Green, WI

Average visibility in December - Spring Green, WI
  • Average visibility in December: 6mi

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

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Spring Green, Wisconsin, USA

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