December Weather in Saint Croix Falls, United States

Last updated: June 24, 2025

In December, the average temperature in Saint Croix Falls, United States hovers around -6°C (22°F). Be prepared for chilly days, as temperatures can plummet to a minimum of -27°C (-16°F), while occasionally reaching a maximum of 14°C (57°F). With an average precipitation of 54 mm (2.1 in) spread over 7 days, and an average humidity level of 84%, don’t forget to bundle up and stay dry!

December Temperature in Saint Croix Falls

In December in Saint Croix Falls, the average temperature is -6°C (22°F), with a maximum that can reach 14°C (57°F) and a minimum that can drop as low as -27°C (-16°F). Travelers should prepare for a wide range of temperatures and dress in layers to stay comfortable during their visit.

December Weather in Saint Croix Falls: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Saint Croix Falls, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Croix Falls, December typically has an average temperature of -6°C (22°F), with highs reaching up to 14°C (57°F) and lows dropping to around -27°C (-16°F).

Data source: Temperature data for Saint Croix Falls generated using information from the Copernicus Climate Change Service.

December Precipitation in Saint Croix Falls

In Saint Croix Falls in December, the precipitation amount is 54 mm (2.1 in) over a duration of 7 days.

December Precipitation Trends in Saint Croix Falls

The chart displays monthly precipitation patterns in Saint Croix Falls, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Saint Croix Falls, December typically receives around 54 mm (2.1 inches) of precipitation spread over approximately 7 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Saint Croix Falls

In Saint Croix Falls in December humidity is 84%. With an average temperature of -6°C (22°F), this humidity feels like an unpleasant chill that seeps into your bones, making travel feel much more uncomfortable and harsh than the temperature alone suggests.

December Average Humidity in Saint Croix Falls

This chart illustrates the average monthly humidity levels in Saint Croix Falls, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Saint Croix Falls is approximately 84%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Saint Croix Falls

In Saint Croix Falls in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Saint Croix Falls, you can visit Hourly UV Index in Saint Croix Falls.

Maximum UV Index Levels in Saint Croix Falls for December

The chart shows the monthly maximum UV Index (UVI) for Saint Croix Falls in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Saint Croix Falls typically reaches 2, which falls under the low exposure category.

Data source: Saint Croix Falls December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How December Weather in Saint Croix Falls Compares to Other Months

Weather in Saint Croix Falls varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Saint Croix Falls, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Saint Croix Falls, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-9°C (15°F)	22 mm (0.9 inches)	87%	low
February Weather	-9°C (16°F)	33 mm (1.3 inches)	90%	moderate
March Weather	0°C (32°F)	50 mm (2.0 inches)	85%	moderate
April Weather	6°C (43°F)	89 mm (3.5 inches)	84%	high
May Weather	14°C (58°F)	117 mm (4.6 inches)	78%	very high
June Weather	21°C (70°F)	89 mm (3.5 inches)	80%	very high
July Weather	23°C (73°F)	101 mm (4.0 inches)	81%	very high
August Weather	21°C (70°F)	126 mm (5.0 inches)	81%	very high
September Weather	17°C (63°F)	102 mm (4.0 inches)	81%	high
October Weather	9°C (48°F)	102 mm (4.0 inches)	84%	moderate
November Weather	0°C (32°F)	39 mm (1.5 inches)	88%	moderate
December Weather	-6°C (22°F)	54 mm (2.1 inches)	84%	low