January weather forecast
Cambridge, MA

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, the same as December, is a wintry winter month in Cambridge, Massachusetts, with temperature in the range of an average low of 22.5°F (-5.3°C) and an average high of 33.8°F (1°C).

Temperature

January is the coldest month, with an average high-temperature of 33.8°F (1°C) and an average low-temperature of 22.5°F (-5.3°C).

Humidity

January and February, with an average relative humidity of 77%, are the most humid months in Cambridge, Massachusetts.

Rainfall

In Cambridge, during January, the rain falls for 4.3 days and regularly aggregates up to 0.39" (10mm) of precipitation. Throughout the year, there are 81.8 rainfall days, and 5.51" (140mm) of precipitation is accumulated.

Snowfall

January through May, November and December are months with snowfall in Cambridge, Massachusetts. In January, it is snowing for 4.8 days. Throughout January, 0.35" (9mm) of snow is accumulated. In Cambridge, during the entire year, snow falls for 16.8 days and aggregates up to 2.4" (61mm) of snow.

Daylight

The average length of the day in January in Cambridge is 9h and 30min.
On the first day of January, sunrise is at 7:13 am and sunset at 4:22 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 4:57 pm EST.

Sunshine

The average sunshine in January in Cambridge is 5.2h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Cambridge. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 2 in January interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Cambridge?

January is the coldest month, with an average high-temperature of 33.8°F (1°C) and an average low-temperature of 22.5°F (-5.3°C).

What are the most humid months in Cambridge?

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

What is the average humidity in January in Cambridge?

The average relative humidity in January in Cambridge is 77%.

How many days does it rain in January in Cambridge?

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

How many days does it snow in January in Cambridge?

In Cambridge, in January, snow falls for 4.8 days, with typically accumulated 0.35" (9mm) of snow.

How many hours of daylight does Cambridge have in January?

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

When 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, in Cambridge, Massachusetts, sunrise is at 6:58 am and sunset at 4:57 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, Massachusetts, are January through March, November and December, with an average maximum UV index of 2.

What is the UV index intensity in January in Cambridge?

In Cambridge, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low health threat from unsafe exposure to Sun's UV rays.

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 30min

The month with the longest days is June (Average daylight: 15h and 14min).
The month with the shortest days is December (Average daylight: 9h and 8min).

  • Average sunshine in January: 5.2h

The month with the most sunshine is August (Average sunshine: 10.5h).
The month with the least sunshine is February (Average sunshine: 4.7h).

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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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