January Weather in Newton, United States

Last updated: June 24, 2025

In Newton, United States, the average temperature in January hovers around 9°C (49°F), with a minimum dipping as low as -13°C (9°F) and a maximum reaching up to 27°C (81°F). Prepare for some rain, as the area experiences an average precipitation of 107 mm (4.2 in) over 8 days during the month, coupled with a high average humidity level of 85%.

January Temperature in Newton

In January in Newton, the average temperature is 9°C (49°F), with maximums reaching 27°C (81°F) and minimums dropping as low as -13°C (9°F). Travelers should prepare for a wide range of temperatures, ensuring they pack layers to stay comfortable.

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

The chart illustrates January 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, January typically has an average temperature of 9°C (49°F), with highs reaching up to 27°C (81°F) and lows dropping to around -13°C (9°F).

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

January Precipitation in Newton

In Newton in January, the total precipitation amount is 107 mm (4.2 in), occurring over a span of 8 days.

January Precipitation Trends in Newton

The chart displays monthly precipitation patterns in Newton, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Newton, January typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 8 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Newton

In Newton in January humidity is 85%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that seeps into your bones, making every step outside a challenge as the moisture in the air weighs heavily and lingers, transforming even simple outings into a quest for comfort.

January Average Humidity in Newton

This chart illustrates the average monthly humidity levels in Newton, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Newton is approximately 85%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Newton

In Newton in January, 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 January

The chart shows the monthly maximum UV Index (UVI) for Newton in January, 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 January, the maximum UV index in Newton typically reaches 4, which falls under the moderate exposure category.

Data source: Newton January 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 January 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 January’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 January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (49°F)	107 mm (4.2 inches)	85%	moderate
February Weather	12°C (54°F)	155 mm (6.1 inches)	84%	high
March Weather	16°C (61°F)	124 mm (4.9 inches)	82%	very high
April Weather	18°C (65°F)	140 mm (5.5 inches)	82%	extreme
May Weather	23°C (74°F)	135 mm (5.3 inches)	82%	extreme
June Weather	26°C (79°F)	161 mm (6.4 inches)	79%	extreme
July Weather	27°C (81°F)	136 mm (5.3 inches)	82%	extreme
August Weather	27°C (81°F)	132 mm (5.2 inches)	77%	extreme
September Weather	25°C (78°F)	96 mm (3.8 inches)	74%	very high
October Weather	21°C (69°F)	98 mm (3.8 inches)	73%	very high
November Weather	13°C (56°F)	70 mm (2.7 inches)	85%	high
December Weather	11°C (52°F)	125 mm (4.9 inches)	88%	moderate