January weather forecast
Penbrook, PA

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Weather in January

January, like December, in Penbrook, Pennsylvania, is a wintry winter month, with an average temperature ranging between max 35.1°F (1.7°C) and min 22.1°F (-5.5°C).

Temperature

Penbrook experiences its lowest temperatures in January, with an average peak of 35.1°F (1.7°C) and a low of 22.1°F (-5.5°C).

Humidity

In Penbrook, the average relative humidity in January is 77%.

Rainfall

January and February are months with the least rain in Penbrook when the rain falls for 5.7 days and typically aggregates up to 0.71" (18mm) of rain.

Snowfall

January through April, November and December are months with snowfall. In January, it is snowing for 6.3 days. Throughout January, 1.18" (30mm) of snow is accumulated. In Penbrook, Pennsylvania, during the entire year, snow falls for 19.9 days and aggregates up to 4.29" (109mm) of snow.

Daylight

The average length of the day in January is 9h and 41min.
On the first day of the month, sunrise is at 7:29 am and sunset at 4:51 pm. On the last day of January, sunrise is at 7:17 am and sunset at 5:24 pm EST.

Sunshine

In January, the average sunshine is 4.6h.

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 estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily maximum UV index of 2 in January interprets into the following advice:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Updated: Jul 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months in Penbrook?

January is the coldest month of the year, registering average temperatures as high as 35.1°F (1.7°C) and as low as 22.1°F (-5.5°C).

How cold is January in Penbrook?

The high-temperature, in January, in Penbrook, is 35.1°F (1.7°C), while the low-temperature averages to 22.1°F (-5.5°C).

What is the average humidity in January in Penbrook?

In January, the average relative humidity is 77%.

What is the driest month?

January and February are months with the least rain when the rain falls for 5.7 days and typically aggregates up to 0.71" (18mm) of rain.

How many days does it rain in January?

In Penbrook, in January, during 5.7 rainfall days, 0.71" (18mm) of precipitation is typically accumulated.

How many days does it snow in January?

In Penbrook, in January, during 6.3 snowfall days, 1.18" (30mm) of snow is typically accumulated.

How many hours of daylight does Penbrook have in January?

In January, the average day length is 9h and 41min.

When is the sunrise / sunset in January?

On the first day of January, sunrise is at 7:29 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:24 pm EST.

How long on average sun shines in January?

In Penbrook, the average sunshine duration in January is 4.6h.

What is the month with the lowest UV index?

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

How high is the UV index in January?

In Penbrook, the average daily maximum UV index in January 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
Penbrook, PA

Average temperature in January - Penbrook, PA
  • Average high temperature in January: 35.1°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 (35.1°F).

  • Average low temperature in January: 22.1°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).

Average pressure in January
Penbrook, PA

Average pressure in January - Penbrook, PA
  • Average pressure in January: 30.1"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
Penbrook, PA

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

The windiest month (with the highest average wind speed) is March (8.2mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

Average humidity in January
Penbrook, PA

Average humidity in January - Penbrook, PA
  • Average humidity in January: 77%

The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are March and April (75%).

Average rainfall in January
Penbrook, PA

Average rainfall in January - Penbrook, PA
  • Average rainfall in January: 0.71"

The wettest month (with the highest rainfall) is August (1.3").
The driest months (with the least rainfall) are January and February (0.71").

Average rainfall days in January
Penbrook, PA

Average rainfall days in January - Penbrook, PA
  • Average rainfall days in January: 5.7 days

The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is January (5.7 days).

Average snowfall in January
Penbrook, PA

Average snowfall in January - Penbrook, PA
  • Average snowfall in January: 1.18"

The month with the highest snowfall is February (1.3").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Penbrook, PA

Average snowfall days in January - Penbrook, PA
  • Average snowfall days in January: 6.3 days

The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in January / Average sunshine in January - Penbrook, 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).

Average sunshine days in January
Penbrook, PA

Average sunshine days in January - Penbrook, PA
  • Average sunshine days in January: 20.6 days

The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is July (14.1 days).

Average UV index in January
Penbrook, PA

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

The months with the highest UV index are May, June and July (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
Penbrook, PA

Average cloud cover in January - Penbrook, PA
  • Average cloud cover in January: 49

The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in January
Penbrook, PA

Average visibility in January - Penbrook, 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).

Penbrook, Pennsylvania, USA

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