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December Weather in Beloit, United States

Last updated: June 24, 2025

In December, the average temperature in Beloit, United States hovers around 2°C (35°F), with a potential dip to a biting -18°C (0°F) and a mild peak at 17°C (63°F). Expect 92 mm (3.6 in) of precipitation spread over 11 days, coupled with a high average humidity of 86%. Stay prepared for a chilly and damp experience!

December Temperature in Beloit

In December in Beloit, the average temperature is 2°C (35°F). Maximum temperatures can reach 17°C (63°F), while minimums can drop as low as -18°C (0°F). Travelers should be prepared for a wide range of temperatures and pack accordingly to enjoy their trip to Beloit.

December Weather in Beloit: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Beloit, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Beloit, December typically has an average temperature of 2°C (35°F), with highs reaching up to 17°C (63°F) and lows dropping to around -18°C (0°F).
JanFebMarAprMayJunJulAugSepOctNovDec293239506170747267564135
Data source: Temperature data for Beloit 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 Beloit

In Beloit in December, the precipitation amount is 92 mm (3.6 in) spread over 11 days.

December Precipitation Trends in Beloit

The chart displays monthly precipitation patterns in Beloit, 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 Beloit, December typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec87991041331231341351021111109392
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Beloit

In Beloit in December humidity is 86%. With an average temperature of 2°C (35°F), this humidity feels like a damp chill that seeps into your bones, making traveling quite uncomfortable as your clothes cling to you and the cold air cuts through any warmth you try to find.

December Average Humidity in Beloit

This chart illustrates the average monthly humidity levels in Beloit, 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 Beloit is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%87%87%81%83%82%76%77%82%89%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Beloit

In Beloit 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 Beloit, you can visit Hourly UV Index in Beloit.

Maximum UV Index Levels in Beloit for December

The chart shows the monthly maximum UV Index (UVI) for Beloit 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 Beloit typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Beloit 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 Beloit Compares to Other Months

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

This table compares monthly weather conditions in Beloit, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)87 mm (3.4 inches)88%moderate
February Weather0°C (33°F)99 mm (3.9 inches)88%moderate
March Weather4°C (40°F)104 mm (4.1 inches)87%high
April Weather10°C (50°F)133 mm (5.3 inches)87%very high
May Weather16°C (61°F)123 mm (4.8 inches)81%very high
June Weather21°C (70°F)134 mm (5.3 inches)83%very high
July Weather23°C (74°F)135 mm (5.3 inches)82%very high
August Weather22°C (72°F)102 mm (4.0 inches)76%very high
September Weather19°C (67°F)111 mm (4.4 inches)77%very high
October Weather13°C (56°F)110 mm (4.3 inches)82%high
November Weather5°C (41°F)93 mm (3.6 inches)89%moderate
December Weather2°C (35°F)92 mm (3.6 inches)86%low

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