January weather forecast
Glen Mills, PA

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Weather in January

January, the same as December, is another cold winter month in Glen Mills, Pennsylvania, with an average temperature fluctuating between 25.3°F (-3.7°C) and 37°F (2.8°C).

Temperature

January, having an average high-temperature of 37°F (2.8°C) and an average low-temperature of 25.3°F (-3.7°C), is the coldest month.

Humidity

The average relative humidity in January is 75%.

Rainfall

The month with the least rainfall is January, when the rain falls for 8.6 days and typically collects 2.36" (60mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Glen Mills, during January, snow falls for 6.9 days and regularly aggregates up to 3.03" (77mm) of snow. In Glen Mills, during the entire year, snow falls for 22 days and aggregates up to 11.81" (300mm) of snow.

Daylight

The average length of the day in January is 9h and 43min.
On the first day of the month, sunrise is at 7:23 am and sunset at 4:47 pm. On the last day of January, sunrise is at 7:11 am and sunset at 5:19 pm EST.

Sunshine

In Glen Mills, the average sunshine in January is 4.9h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum high UV index of 2 in January translates into the following recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Updated: Jul 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

January is the month that records the lowest temperatures, with averages ranging from a high of 37°F (2.8°C) to a low of 25.3°F (-3.7°C).

How cold is January?

The high-temperature, in January, in Glen Mills, is 37°F (2.8°C), while the low-temperature averages to 25.3°F (-3.7°C).

What is the average humidity in January?

In January, the average relative humidity is 75%.

What is the driest month?

The month with the least rainfall is January, when the rain falls for 8.6 days and typically collects 2.36" (60mm) of precipitation.

How many days does it rain in January?

In January, the rain falls for 8.6 days. Throughout January, 2.36" (60mm) of precipitation is accumulated.

How much does it snow in January?

In Glen Mills, in January, during 6.9 snowfall days, 3.03" (77mm) of snow is typically accumulated.

How many hours of daylight does Glen Mills have in January?

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

When is the sunrise / sunset in January?

On the first day of January, sunrise is at 7:23 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 5:19 pm EST.

How long on average sun shines in January?

In Glen Mills, Pennsylvania, the average sunshine duration in January is 4.9h.

What are the months with the lowest UV index?

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

How high is the UV index in January?

In Glen Mills, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability 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
Glen Mills, PA

Average temperature in January - Glen Mills, PA
  • Average high temperature in January: 37°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 (37°F).

  • Average low temperature in January: 25.3°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).

Average pressure in January
Glen Mills, PA

Average pressure in January - Glen Mills, 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).

Average wind speed in January
Glen Mills, PA

Average wind speed in January - Glen Mills, PA
  • Average wind speed in January: 8.5mph

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

Average humidity in January
Glen Mills, PA

Average humidity in January - Glen Mills, PA
  • Average humidity in January: 75%

The months with the highest relative humidity are February and October (78%).
The month with the lowest relative humidity is April (72%).

Average rainfall in January
Glen Mills, PA

Average rainfall in January - Glen Mills, PA
  • Average rainfall in January: 2.36"

The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is January (2.36").

Average rainfall days in January
Glen Mills, PA

Average rainfall days in January - Glen Mills, PA
  • Average rainfall days in January: 8.6 days

The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is January (8.6 days).

Average snowfall in January
Glen Mills, PA

Average snowfall in January - Glen Mills, PA
  • Average snowfall in January: 3.03"

The month with the highest snowfall is February (3.19").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Glen Mills, PA

Average snowfall days in January - Glen Mills, PA
  • Average snowfall days in January: 6.9 days

The month with the highest number of snowfall days is January (6.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Glen Mills, PA

Average daylight in January / Average sunshine in January - Glen Mills, 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 5min

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 48min).

Average sunshine days in January
Glen Mills, PA

Average sunshine days in January - Glen Mills, PA
  • Average sunshine days in January: 17.2 days

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is July (10 days).

Average UV index in January
Glen Mills, PA

Average UV index in January - Glen Mills, 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, November and December (UV index 2).

Average cloud cover in January
Glen Mills, PA

Average cloud cover in January - Glen Mills, PA
  • Average cloud cover in January: 46

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

Average visibility in January
Glen Mills, PA

Average visibility in January - Glen Mills, 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).

Glen Mills, Pennsylvania, USA

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