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December Weather in Newton, United States

Last updated: June 24, 2025

In Newton, United States, the average temperature in December hovers around 7°C (45°F), with a temperature range from a chilly -9°C (16°F) to a warm 24°C (75°F). Expect a precipitation amount of 116 mm (4.6 in) spread over 9 days, and be prepared for high humidity levels at 87%.

December Temperature in Newton

In December in Newton, the average temperature is 7°C (45°F). Maximums can reach 24°C (75°F), while minimums can drop as low as -9°C (16°F). Be prepared for a wide range of temperatures during your travels!

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 7°C (45°F), with highs reaching up to 24°C (75°F) and lows dropping to around -9°C (16°F).
JanFebMarAprMayJunJulAugSepOctNovDec414651596875797772634944
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 precipitation amount is 116 mm (4.6 in) spread over 9 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 116 mm (4.6 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec8712197119124938111412612087116
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 87%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that seeps into your bones, making outdoor adventures somewhat uncomfortable and urging travelers to seek refuge in cozy cafes or warm indoor activities.

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 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%84%82%83%82%80%74%75%79%87%87%
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 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 Newton, you can check the information here.

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 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810101111109853
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 Weather5°C (41°F)87 mm (3.4 inches)86%moderate
February Weather8°C (47°F)121 mm (4.8 inches)85%high
March Weather11°C (52°F)97 mm (3.8 inches)84%very high
April Weather15°C (60°F)119 mm (4.7 inches)82%very high
May Weather20°C (69°F)124 mm (4.9 inches)83%very high
June Weather24°C (75°F)93 mm (3.6 inches)82%extreme
July Weather26°C (79°F)81 mm (3.2 inches)80%extreme
August Weather25°C (77°F)114 mm (4.5 inches)74%very high
September Weather22°C (73°F)126 mm (4.9 inches)75%very high
October Weather17°C (63°F)120 mm (4.7 inches)79%very high
November Weather9°C (49°F)87 mm (3.4 inches)87%moderate
December Weather7°C (45°F)116 mm (4.6 inches)87%moderate

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