January weather forecast
Newtown Square, PA

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Weather in January

January, the same as December, is an icy winter month in Newtown Square, Pennsylvania, with an average temperature varying between 24.3°F (-4.3°C) and 36.5°F (2.5°C).

Temperature

January proves to be the coldest month, recording an average maximum temperature of 36.5°F (2.5°C) and a minimum temperature of 24.3°F (-4.3°C).

Humidity

In January, the average relative humidity in Newtown Square, Pennsylvania, is 76%.

Rainfall

The months with the least rainfall in Newtown Square are January, February and November Rain falls for 6.3 days and accumulates 1.3" (33mm) of rain.

Snowfall

January through May, October through December are months with snowfall in Newtown Square. In January, in Newtown Square, it is snowing for 6.1 days. Throughout January, 1.69" (43mm) of snow is accumulated. Throughout the year, there are 19.3 snowfall days, and 7.68" (195mm) of snow is accumulated.

Daylight

In January, the average length of the day is 9h and 43min.
On the first day of the month, sunrise is at 7:23 am and sunset at 4:46 pm. On the last day of January, sunrise is at 7:11 am and sunset at 5:18 pm EST.

Sunshine

In January, the average sunshine is 4.7h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: An average UV index of 2 in January transforms into this advice:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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Frequently asked questions

What part of the year is the coldest in Newtown Square?

January stands out as Newtown Square's coldest month, with an average high-temperature of 36.5°F (2.5°C) and a low-temperature of 24.3°F (-4.3°C).

How cold is January in Newtown Square?

The high-temperature, in January, in Newtown Square, is 36.5°F (2.5°C), while the low-temperature averages to 24.3°F (-4.3°C).

What is the average humidity in January in Newtown Square?

The average relative humidity in January is 76%.

What is the driest month in Newtown Square?

January, February and November are months with the least rain in Newtown Square when the rain falls for 6.3 days and typically aggregates up to 1.3" (33mm) of rain.

How much does it rain in Newtown Square in January?

In Newtown Square, in January, it is raining for 6.3 days, with typically 1.3" (33mm) of accumulated precipitation.

How many days does it snow in January in Newtown Square?

In Newtown Square, in January, during 6.1 snowfall days, 1.69" (43mm) of snow is typically accumulated.

How many hours of daylight does Newtown Square have in January?

In Newtown Square, the average day length in January is 9h and 43min.

When are sunrise and sunset in January in Newtown Square?

On the first day of January, sunrise is at 7:23 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 5:18 pm EST.

How many hours of sunshine does Newtown Square have in January?

In January, the average sunshine duration is 4.7h.

When is the lowest UV index in Newtown Square?

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

How high is the UV index in January in Newtown Square?

The average daily maximum UV index in January in Newtown Square, Pennsylvania, is 2. A UV Index of 2, and less, symbolizes a low health risk 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
Newtown Square, PA

Average temperature in January - Newtown Square, PA
  • Average high temperature in January: 36.5°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (36.5°F).

  • Average low temperature in January: 24.3°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure in January
Newtown Square, PA

Average pressure in January - Newtown Square, PA
  • Average pressure in January: 30.09"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in January
Newtown Square, PA

Average wind speed in January - Newtown Square, PA
  • Average wind speed in January: 8.3mph

The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in January
Newtown Square, PA

Average humidity in January - Newtown Square, PA
  • Average humidity in January: 76%

The months with the highest relative humidity are February and October (79%).
The months with the lowest relative humidity are April, July and August (73%).

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Average rainfall in January
Newtown Square, PA

Average rainfall in January - Newtown Square, PA
  • Average rainfall in January: 1.3"

The wettest month (with the highest rainfall) is August (2.72").
The driest months (with the least rainfall) are January, February and November (1.3").

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Average rainfall days in January
Newtown Square, PA

Average rainfall days in January - Newtown Square, PA
  • Average rainfall days in January: 6.3 days

The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (6.3 days).

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Average snowfall in January
Newtown Square, PA

Average snowfall in January - Newtown Square, PA
  • Average snowfall in January: 1.69"

The month with the highest snowfall is March (1.93").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Newtown Square, PA

Average snowfall days in January - Newtown Square, PA
  • Average snowfall days in January: 6.1 days

The month with the highest number of snowfall days is January (6.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Newtown Square, PA

Average daylight in January / Average sunshine in January - Newtown Square, 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 24min).

  • Average sunshine in January: 4h and 4min

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

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Average sunshine days in January
Newtown Square, PA

Average sunshine days in January - Newtown Square, PA
  • Average sunshine days in January: 19 days

The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is July (12.7 days).

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Average UV index in January
Newtown Square, PA

Average UV index in January - Newtown Square, PA
  • Average UV index in January: 2

The months with the highest UV index are May, 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
Newtown Square, PA

Average cloud cover in January - Newtown Square, PA
  • Average cloud cover in January: 47

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 33).

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Average visibility in January
Newtown Square, PA

Average visibility in January - Newtown Square, PA
  • Average visibility in January: 6mi

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

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Newtown Square, Pennsylvania, USA

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