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January Weather in Cambridge, United States

Last updated: June 24, 2025

In Cambridge, United States, the average temperature in January hovers around -2°C (29°F). Expect a chilly range, with minimum temperatures dipping to -20°C (-3°F), while the mercury can rise to a pleasant 17°C (64°F). During this month, anticipate 19 mm (0.8 in) of precipitation spread over 3 days, and enjoy an average humidity level of 73%.

January Temperature in Cambridge

In January in Cambridge, the average temperature is -2°C (29°F), with maximums reaching 17°C (64°F) and minimums dropping as low as -20°C (-3°F). Be prepared for a wide range of temperatures if you plan to travel during this time.

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 -2°C (29°F), with highs reaching up to 17°C (64°F) and lows dropping to around -20°C (-3°F).
JanFebMarAprMayJunJulAugSepOctNovDec292842506175787569524233
Data source: Temperature data for Cambridge 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.

January Precipitation in Cambridge

In Cambridge in January, the precipitation amount averaged 19 mm (0.8 in) over a span of 3 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 19 mm (0.8 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec1918713814457716965551629
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Cambridge

In Cambridge in January, humidity is 73%. With an average temperature of -2°C (29°F), this humidity feels like an icy blanket wrap, making outdoor activities challenging as the cold air becomes damp, seeping into your clothes and chilling you to the bone.

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 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec73%80%64%64%76%79%77%79%70%64%75%78%
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.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111109643
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.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)19 mm (0.8 inches)73%moderate
February Weather-2°C (29°F)18 mm (0.7 inches)80%moderate
March Weather5°C (42°F)71 mm (2.8 inches)64%high
April Weather10°C (50°F)37 mm (1.5 inches)64%very high
May Weather16°C (61°F)144 mm (5.7 inches)76%very high
June Weather24°C (75°F)57 mm (2.2 inches)79%extreme
July Weather26°C (79°F)71 mm (2.8 inches)77%extreme
August Weather24°C (75°F)69 mm (2.7 inches)79%very high
September Weather21°C (69°F)65 mm (2.5 inches)70%very high
October Weather11°C (52°F)55 mm (2.2 inches)64%high
November Weather5°C (42°F)16 mm (0.6 inches)75%moderate
December Weather0°C (33°F)29 mm (1.1 inches)78%moderate

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