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December Weather in New Berlin, United States

Last updated: June 24, 2025

In New Berlin, United States, the average temperature in December hovers around 2°C (36°F), with a minimum plunging to -19°C (-3°F) and a maximum reaching up to 20°C (69°F). Expect around 50 mm (2.0 in) of precipitation over approximately 7 days, and be prepared for a high average humidity of 86%.

December Temperature in New Berlin

In December in New Berlin, the average temperature is 2°C (36°F). Maximums can reach 20°C (69°F), while minimums can dip as low as -19°C (-3°F). Be prepared for a wide range of temperatures and pack accordingly for your travels!

December Weather in New Berlin: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in New Berlin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In New Berlin, December typically has an average temperature of 2°C (36°F), with highs reaching up to 20°C (69°F) and lows dropping to around -19°C (-3°F).
JanFebMarAprMayJunJulAugSepOctNovDec293244526575777471574236
Data source: Temperature data for New Berlin 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 New Berlin

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

December Precipitation Trends in New Berlin

The chart displays monthly precipitation patterns in New Berlin, 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 New Berlin, December typically receives around 50 mm (2.0 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec676714113314813211489601057050
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in New Berlin

In New Berlin in December, humidity is 86%. With an average temperature of 2°C (36°F), this humidity feels like a biting chill that clings to your skin, making outdoor exploration uncomfortable and dampening any enthusiasm for travel.

December Average Humidity in New Berlin

This chart illustrates the average monthly humidity levels in New Berlin, 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 New Berlin is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%80%80%82%83%81%80%76%76%85%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in New Berlin

In New Berlin in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in New Berlin, you can check the information here.

Maximum UV Index Levels in New Berlin for December

The chart shows the monthly maximum UV Index (UVI) for New Berlin 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 New Berlin typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec367910111199643
Data source: New Berlin 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 New Berlin Compares to Other Months

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

This table compares monthly weather conditions in New Berlin, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)67 mm (2.6 inches)82%moderate
February Weather0°C (32°F)67 mm (2.6 inches)80%high
March Weather6°C (44°F)141 mm (5.5 inches)80%high
April Weather11°C (53°F)133 mm (5.2 inches)80%very high
May Weather19°C (66°F)148 mm (5.8 inches)82%very high
June Weather24°C (75°F)132 mm (5.2 inches)83%extreme
July Weather25°C (78°F)114 mm (4.5 inches)81%extreme
August Weather23°C (75°F)88 mm (3.5 inches)80%very high
September Weather21°C (71°F)60 mm (2.4 inches)76%very high
October Weather14°C (57°F)105 mm (4.1 inches)76%high
November Weather5°C (42°F)70 mm (2.8 inches)85%moderate
December Weather2°C (36°F)50 mm (2.0 inches)86%moderate

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