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December Weather in Eau Claire, United States

Last updated: June 24, 2025

In December, the average temperature in Eau Claire, United States hovers around 1°C (34°F), with a minimum that can plummet to -21°C (-6°F) and a maximum reaching up to 17°C (63°F). Expect 64 mm (2.5 in) of precipitation spread over 11 days, contributing to a notably high average humidity of 86%. Bundle up and prepare for a mix of chilly conditions and wet weather!

December Temperature in Eau Claire

In December in Eau Claire, the average temperature is 1°C (34°F). The maximum can reach 17°C (63°F) and the minimum can be as low as -21°C (-6°F). Be prepared for a wide temperature range when traveling, so pack accordingly!

December Weather in Eau Claire: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Eau Claire, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Eau Claire, December typically has an average temperature of 1°C (34°F), with highs reaching up to 17°C (63°F) and lows dropping to around -21°C (-6°F).
JanFebMarAprMayJunJulAugSepOctNovDec282938476071757367554034
Data source: Temperature data for Eau Claire 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 Eau Claire

In Eau Claire in December, the total precipitation amount is 64 mm (2.5 in) spread over 11 days.

December Precipitation Trends in Eau Claire

The chart displays monthly precipitation patterns in Eau Claire, 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 Eau Claire, December typically receives around 64 mm (2.5 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec74748710717113610986771407064
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Eau Claire

In Eau Claire in December, humidity is 86%. With an average temperature of 1°C (34°F), this humidity feels like a chilling embrace, making outdoor adventures brisk and invigorating but challenging for travel.

December Average Humidity in Eau Claire

This chart illustrates the average monthly humidity levels in Eau Claire, 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 Eau Claire is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%86%87%81%82%81%79%78%81%89%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Eau Claire

In Eau Claire 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 Eau Claire, you can visit Hourly UV Index in Eau Claire.

Maximum UV Index Levels in Eau Claire for December

The chart shows the monthly maximum UV Index (UVI) for Eau Claire 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 Eau Claire typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689101098642
Data source: Eau Claire 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 Eau Claire Compares to Other Months

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

This table compares monthly weather conditions in Eau Claire, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)74 mm (2.9 inches)85%moderate
February Weather-2°C (29°F)74 mm (2.9 inches)85%moderate
March Weather4°C (39°F)87 mm (3.4 inches)86%high
April Weather8°C (47°F)107 mm (4.2 inches)87%very high
May Weather16°C (60°F)171 mm (6.7 inches)81%very high
June Weather22°C (71°F)136 mm (5.4 inches)82%very high
July Weather24°C (75°F)109 mm (4.3 inches)81%very high
August Weather23°C (73°F)86 mm (3.4 inches)79%very high
September Weather19°C (67°F)77 mm (3.0 inches)78%very high
October Weather13°C (55°F)140 mm (5.5 inches)81%high
November Weather5°C (40°F)70 mm (2.8 inches)89%moderate
December Weather1°C (34°F)64 mm (2.5 inches)86%low

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