December weather forecast
Saint Croix Falls, WI

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Weather in December

The first month of the winter, December, is still a freezing cold month in Saint Croix Falls, Wisconsin, with an average temperature varying between 23.9°F (-4.5°C) and 13.1°F (-10.5°C).

Temperature

During the transition into December, Saint Croix Falls observes a decrease in the average high-temperature, falling from an icy 38.1°F (3.4°C) in November to a freezing cold 23.9°F (-4.5°C). The average temperature drops to an extreme cold 13.1°F (-10.5°C) during the night in the month of December.

Humidity

In Saint Croix Falls, the average relative humidity in December is 90%.

Rainfall

In Saint Croix Falls, Wisconsin, during December, the rain falls for 4.6 days and regularly aggregates up to 1.34" (34mm) of precipitation. In Saint Croix Falls, during the entire year, the rain falls for 130.2 days and collects up to 23.19" (589mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Saint Croix Falls. The month with the most snowfall is December, when snow falls for 14.6 days and typically aggregates up to 4.8" (122mm) of snow.

Daylight

December has the shortest days of the year in Saint Croix Falls, Wisconsin, with an average of 8h and 48min of daylight.
On the first day of the month, sunrise is at 7:30 am and sunset at 4:29 pm. On the last day of December, sunrise is at 7:50 am and sunset at 4:37 pm CST.

Sunshine

In Saint Croix Falls, the average sunshine in December is 3h.

UV index

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Saint Croix Falls, Wisconsin. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 1 in December leads to these recommendations:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
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Frequently asked questions

How cold is it in Saint Croix Falls in December?

In Saint Croix Falls, in December, the average high-temperature is 23.9°F (-4.5°C), and the average low-temperature is 13.1°F (-10.5°C).

What is the average humidity in December in Saint Croix Falls?

The average relative humidity in December in Saint Croix Falls is 90%.

How much does it rain in Saint Croix Falls in December?

In December, in Saint Croix Falls, Wisconsin, the rain falls for 4.6 days. Throughout December, 1.34" (34mm) of precipitation is accumulated.

What is the snowiest month in Saint Croix Falls?

The month with the most snowfall in Saint Croix Falls, Wisconsin, is December, when snow falls for 14.6 days and typically aggregates up to 4.8" (122mm) of snow.

How much does it snow in Saint Croix Falls in December?

In Saint Croix Falls, during December, snow falls for 14.6 days and regularly aggregates up to 4.8" (122mm) of snow.

What is the month with the shortest days in Saint Croix Falls?

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

What is the average length of the day in December in Saint Croix Falls?

The average day length in December is 8h and 47min.

When are sunrise and sunset in December in Saint Croix Falls?

In December, on the first day of the month, sunrise is at 7:30 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 4:37 pm CST.

How many hours of sunshine does Saint Croix Falls have in December?

In December, the average sunshine duration in Saint Croix Falls is 3h.

What is the month with the lowest UV index in Saint Croix Falls?

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Saint Croix Falls.

How high is the UV index in December in Saint Croix Falls?

In Saint Croix Falls, Wisconsin, the average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a low health threat 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
Saint Croix Falls, WI

Average temperature in December - Saint Croix Falls, WI
  • Average high temperature in December: 23.9°F

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (18.3°F).

  • Average low temperature in December: 13.1°F

The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (5.2°F).

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Average pressure in December
Saint Croix Falls, WI

Average pressure in December - Saint Croix Falls, WI
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in December
Saint Croix Falls, WI

Average wind speed in December - Saint Croix Falls, WI
  • Average wind speed in December: 8.7mph

The windiest month (with the highest average wind speed) is April (9.7mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).

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Average humidity in December
Saint Croix Falls, WI

Average humidity in December - Saint Croix Falls, WI
  • Average humidity in December: 90%

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

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Average rainfall in December
Saint Croix Falls, WI

Average rainfall in December - Saint Croix Falls, WI
  • Average rainfall in December: 1.34"

The wettest month (with the highest rainfall) is June (3.74").
The driest month (with the least rainfall) is January (0.67").

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Average rainfall days in December
Saint Croix Falls, WI

Average rainfall days in December - Saint Croix Falls, WI
  • Average rainfall days in December: 4.6 days

The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (3.2 days).

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Average snowfall in December
Saint Croix Falls, WI

Average snowfall in December - Saint Croix Falls, WI
  • Average snowfall in December: 4.8"

The month with the highest snowfall is December (4.8").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Saint Croix Falls, WI

Average snowfall days in December - Saint Croix Falls, WI
  • Average snowfall days in December: 14.6 days

The month with the highest number of snowfall days is January (16.8 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
Saint Croix Falls, WI

Average daylight in December / Average sunshine in December - Saint Croix Falls, 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 0min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).

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Average sunshine days in December
Saint Croix Falls, WI

Average sunshine days in December - Saint Croix Falls, WI
  • Average sunshine days in December: 14.3 days

The month with the most sunshine days is October (16.1 days).
The month with the least sunshine days is June (10.2 days).

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Average UV index in December
Saint Croix Falls, WI

Average UV index in December - Saint Croix Falls, 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).

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Average cloud cover in December
Saint Croix Falls, WI

Average cloud cover in December - Saint Croix Falls, WI
  • Average cloud cover in December: 68

The month with the most cloud cover is January (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 34).

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Average visibility in December
Saint Croix Falls, WI

Average visibility in December - Saint Croix Falls, WI
  • Average visibility in December: 5mi

The months with the highest visibility are April, May, June, July, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

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Saint Croix Falls, Wisconsin, USA

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