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December Weather in Newton, United States

Last updated: June 24, 2025

In December, the average temperature in Newton, United States hovers around 11°C (52°F). Temperatures can vary significantly, with a minimum of -4°C (25°F) and a maximum reaching 27°C (80°F). Expect 125 mm (4.9 in) of precipitation spread over 12 days, accompanied by high humidity levels averaging 88%.

December Temperature in Newton

In December in Newton, the average temperature is 11°C (52°F). The maximum can reach 27°C (80°F), while the minimum can drop as low as -4°C (25°F). This varied climate makes Newton an intriguing destination for travelers seeking both mild and cooler experiences.

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

The chart illustrates December temperature patterns in Newton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Newton, December typically has an average temperature of 11°C (52°F), with highs reaching up to 27°C (80°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec495461647379818178695552
Data source: Temperature data for Newton 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 Newton

In Newton in December, the total precipitation amount is 125 mm (4.9 in) spread over 12 days.

December Precipitation Trends in Newton

The chart displays monthly precipitation patterns in Newton, 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 Newton, December typically receives around 125 mm (4.9 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec107155124140135161136132969870125
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Newton

In Newton in December, humidity is 88%. With an average temperature of 11°C (52°F), this humidity feels like a heavy blanket wrapping around you, making travel uncomfortable and the air feel thick, encouraging you to seek shelter or stay hydrated as you explore.

December Average Humidity in Newton

This chart illustrates the average monthly humidity levels in Newton, 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 Newton is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%82%82%82%79%82%77%74%73%85%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Newton

In Newton in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Newton for better planning.

Maximum UV Index Levels in Newton for December

The chart shows the monthly maximum UV Index (UVI) for Newton 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 Newton typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478111111111110864
Data source: Newton 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 Newton Compares to Other Months

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

This table compares monthly weather conditions in Newton, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (49°F)107 mm (4.2 inches)85%moderate
February Weather12°C (54°F)155 mm (6.1 inches)84%high
March Weather16°C (61°F)124 mm (4.9 inches)82%very high
April Weather18°C (65°F)140 mm (5.5 inches)82%extreme
May Weather23°C (74°F)135 mm (5.3 inches)82%extreme
June Weather26°C (79°F)161 mm (6.4 inches)79%extreme
July Weather27°C (81°F)136 mm (5.3 inches)82%extreme
August Weather27°C (81°F)132 mm (5.2 inches)77%extreme
September Weather25°C (78°F)96 mm (3.8 inches)74%very high
October Weather21°C (69°F)98 mm (3.8 inches)73%very high
November Weather13°C (56°F)70 mm (2.7 inches)85%high
December Weather11°C (52°F)125 mm (4.9 inches)88%moderate

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