January Weather in North Boston, United States

Last updated: June 24, 2025

In January, the average temperature in North Boston, United States hovers around -3°C (27°F), with a minimum dipping as low as -21°C (-6°F) and a maximum reaching 17°C (63°F). Expect about 87 mm (3.4 in) of precipitation spread across 14 days, contributing to a high average humidity of 91%. Stay warm and prepared for the elements!

January Temperature in North Boston

In January in North Boston, the average temperature is -3°C (27°F), with maximums reaching 17°C (63°F) and minimums dipping as low as -21°C (-6°F). This varied climate makes North Boston an intriguing destination for travelers seeking to experience a wide range of winter conditions.

January Weather in North Boston: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in North Boston, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In North Boston, January typically has an average temperature of -3°C (27°F), with highs reaching up to 17°C (63°F) and lows dropping to around -21°C (-6°F).

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

January Precipitation in North Boston

In North Boston in January, the precipitation amount is 87 mm (3.4 in) over a span of 14 days.

January Precipitation Trends in North Boston

The chart displays monthly precipitation patterns in North Boston, 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 North Boston, January typically receives around 87 mm (3.4 inches) of precipitation spread over approximately 14 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 North Boston

In North Boston in January humidity is 91%. With an average temperature of -3°C (27°F), this humidity feels like a thick, icy blanket wrapping around you, making travel quite uncomfortable as every breath is a mix of frigid air and moisture, and the cold dampness clings to your skin, turning even short outings into a test of endurance.

January Average Humidity in North Boston

This chart illustrates the average monthly humidity levels in North Boston, 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 North Boston is approximately 91%, 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 North Boston

In North Boston in January, 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 North Boston, you can check the information here.

Maximum UV Index Levels in North Boston for January

The chart shows the monthly maximum UV Index (UVI) for North Boston 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 North Boston typically reaches 3, which falls under the moderate exposure category.

Data source: North Boston 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 North Boston Compares to Other Months

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

This table compares monthly weather conditions in North Boston, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (27°F)	87 mm (3.4 inches)	91%	moderate
February Weather	-2°C (29°F)	90 mm (3.5 inches)	91%	moderate
March Weather	2°C (35°F)	80 mm (3.2 inches)	88%	high
April Weather	7°C (45°F)	119 mm (4.7 inches)	88%	very high
May Weather	14°C (58°F)	107 mm (4.2 inches)	82%	very high
June Weather	19°C (67°F)	89 mm (3.5 inches)	79%	very high
July Weather	22°C (72°F)	127 mm (5.0 inches)	77%	very high
August Weather	21°C (70°F)	85 mm (3.3 inches)	72%	very high
September Weather	18°C (64°F)	76 mm (3.0 inches)	76%	very high
October Weather	12°C (54°F)	134 mm (5.3 inches)	83%	high
November Weather	4°C (40°F)	99 mm (3.9 inches)	88%	moderate
December Weather	0°C (33°F)	105 mm (4.1 inches)	87%	low