January weather forecast
Brookline, PA

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Weather in January

January, like December, in Brookline, Pennsylvania, is another cold winter month, with temperature in the range of an average high of 33.4°F (0.8°C) and an average low of 20.8°F (-6.2°C).

Temperature

January, characterized by an average high temperature of 33.4°F (0.8°C) and a low temperature of 20.8°F (-6.2°C), is generally the coldest month.

Humidity

January and February, with an average relative humidity of 84%, are the most humid months in Brookline, Pennsylvania.

Rainfall

In Brookline, during January, the rain falls for 8.5 days and regularly aggregates up to 1.65" (42mm) of precipitation. In Brookline, during the entire year, the rain falls for 164 days and collects up to 26.89" (683mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. The month with the most snowfall in Brookline, Pennsylvania, is January, when snow falls for 16.3 days and typically aggregates up to 3.46" (88mm) of snow.

Daylight

In January, the average length of the day in Brookline is 9h and 41min.
On the first day of January in Brookline, sunrise is at 7:42 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:36 pm EST.

Sunshine

January has the least sunshine of the year in Brookline, with an average of 2.9h of sunshine.

UV index

The average daily maximum UV index in January in Brookline is 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.
Note: A daily high UV index of 2 in January leads to these guidelines:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months in Brookline?

During the coldest month in Brookline, January, temperatures average a high of 33.4°F (0.8°C) and a low of 20.8°F (-6.2°C).

How cold is it in Brookline in January?

The average high-temperature and low-temperature during January are 33.4°F (0.8°C) and 20.8°F (-6.2°C) respectively.

What are the most humid months in Brookline?

The months with the highest humidity are January and February, with an average relative humidity of 84%.

What is the average humidity in January in Brookline?

The average relative humidity in January in Brookline, Pennsylvania, is 84%.

How much does it rain in Brookline in January?

In Brookline, Pennsylvania, in January, during 8.5 rainfall days, 1.65" (42mm) of precipitation is typically accumulated.

What is the snowiest month in Brookline?

January is the month with the most snowfall. Snow falls for 16.3 days and accumulates 3.46" (88mm) of snow.

How much does it snow in Brookline in January?

In Brookline, during January, snow falls for 16.3 days and regularly aggregates up to 3.46" (88mm) of snow.

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

The average day length in January in Brookline is 9h and 41min.

When are sunrise and sunset in January in Brookline?

On the first day of January in Brookline, sunrise is at 7:42 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:36 pm EST.

What is the month with the least sunshine in Brookline?

With an average of 2.9h of sunshine, January has the least sunshine of the year.

How long on average sun shines in January in Brookline?

The average sunshine duration in January is 2.9h.

What is the UV index intensity in January in Brookline?

In Brookline, Pennsylvania, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from unsafe 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
Brookline, PA

Average temperature in January - Brookline, PA
  • Average high temperature in January: 33.4°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in January: 20.8°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).

Average pressure in January
Brookline, PA

Average pressure in January - Brookline, PA
  • Average pressure in January: 30.11"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in January
Brookline, PA

Average wind speed in January - Brookline, PA
  • Average wind speed in January: 7.9mph

The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in January
Brookline, PA

Average humidity in January - Brookline, PA
  • Average humidity in January: 84%

The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (73%).

Average rainfall in January
Brookline, PA

Average rainfall in January - Brookline, PA
  • Average rainfall in January: 1.65"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is November (1.61").

Average rainfall days in January
Brookline, PA

Average rainfall days in January - Brookline, PA
  • Average rainfall days in January: 8.5 days

The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is January (8.5 days).

Average snowfall in January
Brookline, PA

Average snowfall in January - Brookline, PA
  • Average snowfall in January: 3.46"

The month with the highest snowfall is January (3.46").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Brookline, PA

Average snowfall days in January - Brookline, PA
  • Average snowfall days in January: 16.3 days

The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Brookline, PA

Average daylight in January / Average sunshine in January - Brookline, PA
  • Average daylight in January: 9h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in January: 2h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).

Average sunshine days in January
Brookline, PA

Average sunshine days in January - Brookline, PA
  • Average sunshine days in January: 9.7 days

The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is February (9.5 days).

Average UV index in January
Brookline, PA

Average UV index in January - Brookline, PA
  • Average UV index in January: 2

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in January
Brookline, PA

Average cloud cover in January - Brookline, PA
  • Average cloud cover in January: 69

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in January
Brookline, PA

Average visibility in January - Brookline, PA
  • Average visibility in January: 5mi

The months with the highest visibility are April, June, July, August and November (6mi).
The months with the lowest visibility are January, February, March, May, September, October and December (5mi).

Brookline, Pennsylvania, USA

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