January weather forecast
Cambridge, MA

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The John Weeks Memorial Footbridge in Cambridge, Massachusetts, over the Charles River calm waters, and a distant view of the Havard University student residence unit
The John Weeks Memorial Footbridge in Cambridge, Massachusetts, over the Charles River calm waters, and a distant view of the Havard University student residence unit

Weather in January

January in Cambridge, Massachusetts predominantly delivers snowfall, a common characteristic of weather in this area in winter. With a typical mix of snow-affected and dry days, the climate often alternates from snowy conditions to clear skies. Evocative frozen landscapes often come to mind when considering this month in the Massachusetts region. The peak of winter sees temperatures dipping to as low as 22.5°F (-5.3°C) and reaching no higher than 33.8°F (1°C). The occasional cold snap may make you pause before heading outside, yet the frost and snow enhance the city's scenic vistas.

Temperature

With its high average temperature of 33.8°F (1°C) and a low of 22.5°F (-5.3°C), January is regarded as the coldest month in Cambridge.

Humidity

The months with the highest humidity are January and February, with an average relative humidity of 77%.

Rainfall

In Cambridge, Massachusetts, in January, it is raining for 4.3 days, with typically 0.39" (10mm) of accumulated precipitation. In Cambridge, Massachusetts, during the entire year, the rain falls for 81.8 days and collects up to 5.51" (140mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In Cambridge, in January, snow falls for 4.8 days, with typically accumulated 0.35" (9mm) of snow. Throughout the year, there are 16.8 snowfall days, and 2.4" (61mm) of snow is accumulated.

Daylight

The average length of the day in January is 9h and 30min.
On the first day of January in Cambridge, sunrise is at 7:13 am and sunset at 4:22 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 4:56 pm EST.

Sunshine

In January, the average sunshine in Cambridge is 5.2h.

UV index

The months with the lowest UV index in Cambridge are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum high daily UV index of 2 during January translates into the following directions:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
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Frequently asked questions

What month is the coldest in Cambridge?

With average temperatures fluctuating between a high of 33.8°F (1°C) and a low of 22.5°F (-5.3°C), January stands out as the coldest month.

How cold is it in Cambridge in January?

In January, the average high-temperature and low-temperature in Cambridge, Massachusetts, are 33.8°F (1°C) and 22.5°F (-5.3°C) respectively.

What is the most humid month in Cambridge?

The months with the highest humidity are January and February, with an average relative humidity of 77%.

What is the average humidity in January in Cambridge?

In Cambridge, Massachusetts, the average relative humidity in January is 77%.

How much does it rain in Cambridge in January?

In Cambridge, Massachusetts, in January, it is raining for 4.3 days, with typically 0.39" (10mm) of accumulated precipitation.

How much does it snow in Cambridge in January?

In Cambridge, Massachusetts, in January, during 4.8 snowfall days, 0.35" (9mm) of snow is typically accumulated.

How many hours of daylight does Cambridge have in January?

In January, the average day length in Cambridge is 9h and 30min.

What time are sunrise and sunset in January in Cambridge?

In January, on the first day of the month, sunrise is at 7:13 am and sunset at 4:22 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 4:56 pm EST.

How many hours of sunshine does Cambridge have in January?

The average sunshine duration in January in Cambridge is 5.2h.

What are the months with the lowest UV index in Cambridge?

The months with the lowest UV index in Cambridge are January through March, November and December, with an average maximum UV index of 2.

What is the UV index reading in January in Cambridge?

In Cambridge, Massachusetts, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Cambridge, MA

Average temperature in January - Cambridge, MA
  • Average high temperature in January: 33.8°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (33.8°F).

  • Average low temperature in January: 22.5°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

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Average pressure in January
Cambridge, MA

Average pressure in January - Cambridge, MA
  • Average pressure in January: 30.01"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in January
Cambridge, MA

Average wind speed in January - Cambridge, MA
  • Average wind speed in January: 9.5mph

The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average humidity in January
Cambridge, MA

Average humidity in January - Cambridge, MA
  • Average humidity in January: 77%

The months with the highest relative humidity are January and February (77%).
The month with the lowest relative humidity is April (69%).

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Average rainfall in January
Cambridge, MA

Average rainfall in January - Cambridge, MA
  • Average rainfall in January: 0.39"

The wettest month (with the highest rainfall) is November (0.63").
The driest month (with the least rainfall) is September (0.2").

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Average rainfall days in January
Cambridge, MA

Average rainfall days in January - Cambridge, MA
  • Average rainfall days in January: 4.3 days

The month with the highest number of rainy days is July (9.6 days).
The month with the least rainy days is January (4.3 days).

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Average snowfall in January
Cambridge, MA

Average snowfall in January - Cambridge, MA
  • Average snowfall in January: 0.35"

The month with the highest snowfall is December (0.71").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in January
Cambridge, MA

Average snowfall days in January - Cambridge, MA
  • Average snowfall days in January: 4.8 days

The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in January /
Average sunshine in January
Cambridge, MA

Average daylight in January / Average sunshine in January - Cambridge, MA
  • Average daylight in January: 9h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in January: 5h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in January
Cambridge, MA

Average sunshine days in January - Cambridge, MA
  • Average sunshine days in January: 23.5 days

The month with the most sunshine days is January (23.5 days).
The month with the least sunshine days is June (17.4 days).

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Average UV index in January
Cambridge, MA

Average UV index in January - Cambridge, MA
  • Average UV index in January: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in January
Cambridge, MA

Average cloud cover in January - Cambridge, MA
  • Average cloud cover in January: 45

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in January
Cambridge, MA

Average visibility in January - Cambridge, MA
  • Average visibility in January: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Cambridge, Massachusetts, USA

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