January weather forecast
Pen Argyl, PA

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Weather in January

January, like December, in Pen Argyl, Pennsylvania, is an icy winter month, with an average temperature ranging between max 33.4°F (0.8°C) and min 20.7°F (-6.3°C).

Temperature

January is Pen Argyl's coldest month, registering average high temperatures of 33.4°F (0.8°C) and lows of 20.7°F (-6.3°C).

Humidity

The average relative humidity in January is 79%.

Rainfall

In January, the rain falls for 7.3 days. Throughout January, 1.3" (33mm) of precipitation is accumulated. In Pen Argyl, during the entire year, the rain falls for 139.9 days and collects up to 19.88" (505mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Pen Argyl, in January, during 6.4 snowfall days, 2.44" (62mm) of snow is typically accumulated. Throughout the year, there are 24.7 snowfall days, and 10.94" (278mm) of snow is accumulated.

Daylight

In January, the average length of the day is 9h and 38min.
On the first day of January, sunrise is at 7:25 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 5:16 pm EST.

Sunshine

The average sunshine in January is 4.8h.

UV index

In Pen Argyl, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: An average UV index of 2 in January transforms into this advice:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Updated: Jun 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months?

Pen Argyl reaches its average lowest temperatures in January, measuring 33.4°F (0.8°C) at the peak and 20.7°F (-6.3°C) at the lowest.

How cold is January?

The average high-temperature and low-temperature during January are 33.4°F (0.8°C) and 20.7°F (-6.3°C) respectively.

What is the average humidity in January?

In January, the average relative humidity is 79%.

How many days does it rain in January?

In Pen Argyl, Pennsylvania, during January, the rain falls for 7.3 days and regularly aggregates up to 1.3" (33mm) of precipitation.

How much does it snow in January?

In Pen Argyl, in January, during 6.4 snowfall days, 2.44" (62mm) of snow is typically accumulated.

What is the average length of the day in January?

The average day length in January is 9h and 38min.

When is the sunrise / sunset in January?

On the first day of January, sunrise is at 7:25 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 5:16 pm EST.

How long on average sun shines in January?

In Pen Argyl, the average sunshine duration in January is 4.8h.

What is the UV index reading in January?

The average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to 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
Pen Argyl, PA

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

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in January: 20.7°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

Average pressure in January
Pen Argyl, PA

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

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in January
Pen Argyl, PA

Average wind speed in January - Pen Argyl, PA
  • Average wind speed in January: 8mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

Average humidity in January
Pen Argyl, PA

Average humidity in January - Pen Argyl, PA
  • Average humidity in January: 79%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (76%).

Average rainfall in January
Pen Argyl, PA

Average rainfall in January - Pen Argyl, PA
  • Average rainfall in January: 1.3"

The wettest month (with the highest rainfall) is July (2.32").
The driest month (with the least rainfall) is September (1.02").

Average rainfall days in January
Pen Argyl, PA

Average rainfall days in January - Pen Argyl, PA
  • Average rainfall days in January: 7.3 days

The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in January
Pen Argyl, PA

Average snowfall in January - Pen Argyl, PA
  • Average snowfall in January: 2.44"

The month with the highest snowfall is February (2.52").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Pen Argyl, PA

Average snowfall days in January - Pen Argyl, PA
  • Average snowfall days in January: 6.4 days

The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Pen Argyl, PA

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in January: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in January
Pen Argyl, PA

Average sunshine days in January - Pen Argyl, PA
  • Average sunshine days in January: 19.3 days

The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is July (13 days).

Average UV index in January
Pen Argyl, PA

Average UV index in January - Pen Argyl, PA
  • Average UV index in January: 2

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

Average cloud cover in January
Pen Argyl, PA

Average cloud cover in January - Pen Argyl, PA
  • Average cloud cover in January: 48

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in January
Pen Argyl, PA

Average visibility in January - Pen Argyl, PA
  • Average visibility in January: 5mi

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

Pen Argyl, Pennsylvania, USA

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