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December Weather in Mukwonago, United States

Last updated: June 24, 2025

In Mukwonago, United States, the average temperature in December hovers around -1°C (31°F). While the mercury can dip as low as -22°C (-7°F), it can also rise to a comfortable 19°C (66°F). During this period, expect approximately 50 mm (2.0 in) of precipitation over about 7 days, accompanied by an average humidity of 81%. Embrace the chill, but don’t forget your umbrella!

December Temperature in Mukwonago

In December in Mukwonago, the average temperature is -1°C (31°F), with a maximum reaching 19°C (66°F) and a minimum plummeting to -22°C (-7°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack appropriately for both warmth and cooler conditions.

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

The chart illustrates December temperature patterns in Mukwonago, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mukwonago, December typically has an average temperature of -1°C (31°F), with highs reaching up to 19°C (66°F) and lows dropping to around -22°C (-7°F).
JanFebMarAprMayJunJulAugSepOctNovDec232537465870747266533831
Data source: Temperature data for Mukwonago 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 Mukwonago

In Mukwonago in December, the precipitation amount is 50 mm (2.0 in) over a span of 7 days.

December Precipitation Trends in Mukwonago

The chart displays monthly precipitation patterns in Mukwonago, 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 Mukwonago, December typically receives around 50 mm (2.0 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec6055611121451048579921134750
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Mukwonago

In Mukwonago in December humidity is 81%. With an average temperature of -1°C (31°F), this humidity feels like a heavy, cold mist that clings to your skin, making outdoor adventures damp and challenging.

December Average Humidity in Mukwonago

This chart illustrates the average monthly humidity levels in Mukwonago, 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 Mukwonago is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%85%85%78%80%78%76%79%83%88%82%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Mukwonago

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

Maximum UV Index Levels in Mukwonago for December

The chart shows the monthly maximum UV Index (UVI) for Mukwonago 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 Mukwonago typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689101098532
Data source: Mukwonago 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 Mukwonago Compares to Other Months

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

This table compares monthly weather conditions in Mukwonago, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (24°F)60 mm (2.4 inches)85%moderate
February Weather-4°C (25°F)55 mm (2.2 inches)85%moderate
March Weather3°C (37°F)61 mm (2.4 inches)85%high
April Weather8°C (46°F)112 mm (4.4 inches)85%very high
May Weather15°C (59°F)145 mm (5.7 inches)78%very high
June Weather21°C (70°F)104 mm (4.1 inches)80%very high
July Weather24°C (75°F)85 mm (3.4 inches)78%very high
August Weather22°C (72°F)79 mm (3.1 inches)76%very high
September Weather19°C (66°F)92 mm (3.6 inches)79%very high
October Weather11°C (53°F)113 mm (4.4 inches)83%moderate
November Weather3°C (38°F)47 mm (1.9 inches)88%moderate
December Weather-1°C (31°F)50 mm (2.0 inches)81%low

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