January weather forecast
Newtown, PA

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Weather in January

January, like December, in Newtown, Pennsylvania, is another cold winter month, with an average temperature varying between 36.9°F (2.7°C) and 24.3°F (-4.3°C).

Temperature

January, noted for its average high-temperature of 36.9°F (2.7°C) and an average low-temperature of 24.3°F (-4.3°C), is considered the coldest month.

Humidity

In January, the average relative humidity is 75%.

Rainfall

In Newtown, in January, it is raining for 8.8 days, with typically 2.2" (56mm) of accumulated precipitation. Throughout the year, there are 156 rainfall days, and 31.77" (807mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Newtown are January through May, October through December. In January, it is snowing for 7.3 days. Throughout January, 2.4" (61mm) of snow is accumulated. Throughout the year, there are 24 snowfall days, and 12.13" (308mm) of snow is accumulated.

Daylight

In January, the average length of the day is 9h and 42min.
On the first day of the month, sunrise is at 7:22 am and sunset at 4:44 pm. On the last day of January, in Newtown, sunrise is at 7:09 am and sunset at 5:16 pm EST.

Sunshine

In January, the average sunshine is 5h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 2 during January translates into the following directions:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.

Frequently asked questions

What are the coldest months?

January stands out as Newtown's coldest month, with temperatures ranging between an average high of 36.9°F (2.7°C) and a low of 24.3°F (-4.3°C).

How cold is January?

In January, the average high-temperature and low-temperature are 36.9°F (2.7°C) and 24.3°F (-4.3°C) respectively.

What is the average humidity in January?

In January, the average relative humidity is 75%.

How much does it rain in January?

In Newtown, in January, it is raining for 8.8 days, with typically 2.2" (56mm) of accumulated precipitation.

How much does it snow in January?

In January, it is snowing for 7.3 days. Throughout January, 2.4" (61mm) of snow is accumulated.

What is the average length of the day in January?

In January, the average day length is 9h and 42min.

When are sunrise and sunset in January?

On the first day of January, sunrise is at 7:22 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:16 pm EST.

How long on average sun shines in January?

In January, the average sunshine duration is 5h.

What is the month with the lowest UV index?

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

What is the UV index intensity in January?

In January, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health threat 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
Newtown, PA

Average temperature in January - Newtown, PA
  • Average high temperature in January: 36.9°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in January: 24.3°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in January
Newtown, PA

Average pressure in January - Newtown, PA
  • Average pressure in January: 30.08"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in January
Newtown, PA

Average wind speed in January - Newtown, PA
  • Average wind speed in January: 8.1mph

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in January
Newtown, PA

Average humidity in January - Newtown, PA
  • Average humidity in January: 75%

The months with the highest relative humidity are February and October (78%).
The months with the lowest relative humidity are April, July and August (72%).

Average rainfall in January
Newtown, PA

Average rainfall in January - Newtown, PA
  • Average rainfall in January: 2.2"

The wettest month (with the highest rainfall) is December (3.31").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days in January
Newtown, PA

Average rainfall days in January - Newtown, PA
  • Average rainfall days in January: 8.8 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is November (8.5 days).

Average snowfall in January
Newtown, PA

Average snowfall in January - Newtown, PA
  • Average snowfall in January: 2.4"

The month with the highest snowfall is March (3.78").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Newtown, PA

Average snowfall days in January - Newtown, PA
  • Average snowfall days in January: 7.3 days

The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Newtown, 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: 5h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in January
Newtown, PA

Average sunshine days in January - Newtown, PA
  • Average sunshine days in January: 17.7 days

The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is June (11.4 days).

Average UV index in January
Newtown, PA

Average UV index in January - Newtown, 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).

Average cloud cover in January
Newtown, PA

Average cloud cover in January - Newtown, PA
  • Average cloud cover in January: 45

The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in January
Newtown, PA

Average visibility in January - Newtown, 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).

Newtown, Pennsylvania, USA

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