December Weather in Newton, United States

Last updated: June 24, 2025

In December, the average temperature in Newton, United States hovers around 13°C (56°F), making it a refreshing time of year. While you might experience chilly lows of -2°C (29°F), warmer days can reach a pleasant 28°C (83°F). Expect 133 mm (5.2 in) of precipitation distributed over 10 days, and prepare for a humid atmosphere with an average humidity level of 88%.

December Temperature in Newton

In December in Newton, the average temperature is 13°C (56°F). Maximum can reach 28°C (83°F) and minimum can be as low as -2°C (29°F). Be prepared for a wide range of temperatures if you're planning a trip during this time.

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 13°C (56°F), with highs reaching up to 28°C (83°F) and lows dropping to around -2°C (29°F).

Data source: Temperature data for Newton generated using information from the Copernicus Climate Change Service.

December Precipitation in Newton

In Newton in December, the total precipitation amount is 133 mm (5.2 in) spread over a period of 10 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 133 mm (5.2 inches) of precipitation spread over approximately 10 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Newton

In Newton in December, humidity is 88%. With an average temperature of 13°C (56°F), this humidity feels like a thick, warm blanket wrapping around you, making outdoor adventures sticky and challenging.

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.

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 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Newton.

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 5, which falls under the moderate exposure category.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	11°C (53°F)	104 mm (4.1 inches)	81%	moderate
February Weather	13°C (56°F)	118 mm (4.7 inches)	81%	very high
March Weather	18°C (64°F)	87 mm (3.4 inches)	79%	very high
April Weather	20°C (68°F)	141 mm (5.5 inches)	80%	very high
May Weather	24°C (76°F)	210 mm (8.3 inches)	81%	extreme
June Weather	27°C (81°F)	160 mm (6.3 inches)	76%	extreme
July Weather	28°C (83°F)	116 mm (4.6 inches)	73%	extreme
August Weather	28°C (83°F)	193 mm (7.6 inches)	71%	extreme
September Weather	26°C (79°F)	157 mm (6.2 inches)	72%	very high
October Weather	22°C (71°F)	127 mm (5.0 inches)	73%	very high
November Weather	15°C (60°F)	64 mm (2.5 inches)	83%	high
December Weather	13°C (56°F)	133 mm (5.2 inches)	88%	moderate