January Weather in Cambridge, United States

Last updated: June 24, 2025

In January, the average temperature in Cambridge, United States hovers around -6°C (21°F), but it can dip as low as -31°C (-23°F) and reach a high of 14°C (57°F). This chilly month also brings about 36 mm (1.4 in) of precipitation spread over approximately 6 days, accompanied by a notable average humidity of 78%. Stay warm and prepared!

January Temperature in Cambridge

In January in Cambridge, the average temperature is -6°C (21°F). The maximum can reach 14°C (57°F), while the minimum can plummet to as low as -31°C (-23°F). Travelers should be prepared for a wide range of temperatures and dress accordingly to ensure comfort during their visit.

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

The chart illustrates January temperature patterns in Cambridge, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cambridge, January typically has an average temperature of -6°C (21°F), with highs reaching up to 14°C (57°F) and lows dropping to around -31°C (-23°F).

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

January Precipitation in Cambridge

In Cambridge in January, the total precipitation amount is 36 mm (1.4 in), which falls over the course of 6 days.

January Precipitation Trends in Cambridge

The chart displays monthly precipitation patterns in Cambridge, 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 Cambridge, January typically receives around 36 mm (1.4 inches) of precipitation spread over approximately 6 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Cambridge

In Cambridge in January humidity is 78%. With average temperature -6°C (21°F), this humidity feels like a frosty blanket enveloping you, making it crucial to bundle up if you're planning to explore the area. You'll want to be prepared for the biting chill that lingers in the air, creating an atmosphere that is both invigorating and crisp, perfect for winter adventures but challenging for prolonged outdoor activities.

January Average Humidity in Cambridge

This chart illustrates the average monthly humidity levels in Cambridge, 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 Cambridge is approximately 78%, 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 Cambridge

In Cambridge 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 Cambridge, you can check the information here.

Maximum UV Index Levels in Cambridge for January

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

Data source: Cambridge 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 Cambridge Compares to Other Months

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

This table compares monthly weather conditions in Cambridge, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (21°F)	36 mm (1.4 inches)	78%	moderate
February Weather	-6°C (22°F)	42 mm (1.7 inches)	80%	moderate
March Weather	3°C (39°F)	77 mm (3.0 inches)	77%	high
April Weather	9°C (49°F)	79 mm (3.1 inches)	77%	very high
May Weather	17°C (62°F)	158 mm (6.2 inches)	77%	very high
June Weather	23°C (74°F)	102 mm (4.0 inches)	81%	extreme
July Weather	25°C (77°F)	78 mm (3.1 inches)	81%	very high
August Weather	23°C (73°F)	72 mm (2.8 inches)	77%	very high
September Weather	20°C (68°F)	121 mm (4.8 inches)	73%	very high
October Weather	11°C (52°F)	130 mm (5.1 inches)	75%	high
November Weather	3°C (38°F)	41 mm (1.6 inches)	85%	moderate
December Weather	-1°C (30°F)	36 mm (1.4 inches)	83%	moderate