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December Weather in Black River Falls, United States

Last updated: June 24, 2025

In Black River Falls, United States, the average temperature in December hovers around -4°C (26°F), with extremes ranging from a chilling -27°C (-16°F) to a milder 17°C (62°F). Expect about 47 mm (1.9 in) of precipitation over 7 days, contributing to an average humidity level of 85%. Embrace the winter atmosphere while staying prepared for the varying conditions!

December Temperature in Black River Falls

In December in Black River Falls, the average temperature is -4°C (26°F), with maximums reaching up to 17°C (62°F) and minimums plummeting to as low as -27°C (-16°F). Travelers should be prepared for a wide range of temperatures and dress accordingly.

December Weather in Black River Falls: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Black River Falls, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Black River Falls, December typically has an average temperature of -4°C (26°F), with highs reaching up to 17°C (62°F) and lows dropping to around -27°C (-16°F).
JanFebMarAprMayJunJulAugSepOctNovDec192035445970737064493426
Data source: Temperature data for Black River Falls generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Black River Falls

In Black River Falls in December, the total precipitation amount is 47 mm (1.9 in) recorded over a span of 7 days.

December Precipitation Trends in Black River Falls

The chart displays monthly precipitation patterns in Black River 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 Black River Falls, December typically receives around 47 mm (1.9 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec345257891331331091231041145247
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Black River Falls

In Black River Falls in December humidity is 85%. With an average temperature of -4°C (26°F), this humidity feels like a biting chill that seeps through your layers, making travel uncomfortable and urging you to seek warmth quickly.

December Average Humidity in Black River Falls

This chart illustrates the average monthly humidity levels in Black River 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 Black River Falls is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%89%86%85%79%80%80%78%80%84%89%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Black River Falls

In Black River 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 Black River Falls, you can visit Hourly UV Index in Black River Falls.

Maximum UV Index Levels in Black River Falls for December

The chart shows the monthly maximum UV Index (UVI) for Black River 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 Black River Falls typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24588101097532
Data source: Black River 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 Black River Falls Compares to Other Months

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

This table compares monthly weather conditions in Black River Falls, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (19°F)34 mm (1.3 inches)88%low
February Weather-7°C (20°F)52 mm (2.0 inches)89%moderate
March Weather1°C (35°F)57 mm (2.3 inches)86%moderate
April Weather7°C (45°F)89 mm (3.5 inches)85%very high
May Weather15°C (59°F)133 mm (5.2 inches)79%very high
June Weather21°C (70°F)133 mm (5.2 inches)80%very high
July Weather23°C (73°F)109 mm (4.3 inches)80%very high
August Weather21°C (70°F)123 mm (4.8 inches)78%very high
September Weather18°C (64°F)104 mm (4.1 inches)80%high
October Weather10°C (49°F)114 mm (4.5 inches)84%moderate
November Weather1°C (35°F)52 mm (2.1 inches)89%moderate
December Weather-4°C (26°F)47 mm (1.9 inches)85%low

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