January weather forecast
Brookline, MA

A small league field in Brookline, Massachusetts, overlooking bright yellow trees in the fall, behind the cityscape of Boston
A small league field in Brookline, Massachusetts, overlooking bright yellow trees in the fall, behind the cityscape of Boston

Weather in January

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

Rainfall

In Brookline, during 4.3 rainfall days, 0.39" (10mm) of precipitation is typically accumulated. Throughout the year, in Brookline, Massachusetts, there are 81.8 rainfall days, and 5.51" (140mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, November and December. In Brookline, Massachusetts, during January, snow falls for 4.8 days and regularly aggregates up to 0.35" (9mm) of snow. Throughout the year, there are 16.8 snowfall days, and 2.4" (61mm) of snow is accumulated.

Daylight

In Brookline, the average length of the day in January is 9h and 30min.
On the first day of January in Brookline, Massachusetts, 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 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 Brookline. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
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. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the coldest month in Brookline?

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

What is the temperature in January in Brookline?

In Brookline, in January, the average high-temperature is 33.8°F (1°C), and the average low-temperature is 22.5°F (-5.3°C).

What is the most humid month in Brookline?

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

What is the average humidity in January in Brookline?

The average relative humidity in January is 77%.

How many days does it rain in January in Brookline?

In Brookline, Massachusetts, during January, the rain falls for 4.3 days and regularly aggregates up to 0.39" (10mm) of precipitation.

How many days does it snow in January in Brookline?

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

What is the average length of the day in January in Brookline?

The average day length in January in Brookline is 9h and 30min.

When are sunrise and sunset in January in Brookline?

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 Brookline, Massachusetts, sunrise is at 6:58 am and sunset at 4:57 pm EST.

How many hours of sunshine does Brookline have in January?

The average sunshine duration in January in Brookline, Massachusetts, is 5.2h.

When is the lowest UV index in Brookline?

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

How high is the UV index in January in Brookline?

The average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a low health threat from exposure to the Sun's UV radiation.
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
Brookline, MA

Average temperature in January - Brookline, 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
Brookline, MA

Average pressure in January - Brookline, 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
Brookline, MA

Average wind speed in January - Brookline, 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
Brookline, MA

Average humidity in January - Brookline, 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
Brookline, MA

Average rainfall in January - Brookline, 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
Brookline, MA

Average rainfall days in January - Brookline, 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
Brookline, MA

Average snowfall in January - Brookline, 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
Brookline, MA

Average snowfall days in January - Brookline, 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
Brookline, MA

Average daylight in January / Average sunshine in January - Brookline, 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: 5h and 12min

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
Brookline, MA

Average sunshine days in January - Brookline, 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
Brookline, MA

Average UV index in January - Brookline, 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
Brookline, MA

Average cloud cover in January - Brookline, 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
Brookline, MA

Average visibility in January - Brookline, 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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