January weather forecast
Glen Isle, MD

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Weather in January

January, the same as December, is a wintry winter month in Glen Isle, Maryland, with an average temperature varying between 40.3°F (4.6°C) and 29.8°F (-1.2°C).

Temperature

January is the coldest month, with an average high-temperature of 40.3°F (4.6°C) and an average low-temperature of 29.8°F (-1.2°C).

Humidity

The months with the lowest humidity in Glen Isle are January, March, April and November, with an average relative humidity of 72%.

Rainfall

January is the month with the least rainfall. Rain falls for 6 days and accumulates 0.47" (12mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall in Glen Isle, Maryland. The month with the most snowfall in Glen Isle, Maryland, is January, when snow falls for 2.3 days and typically aggregates up to 0.67" (17mm) of snow.

Daylight

In Glen Isle, the average length of the day in January is 9h and 48min.
On the first day of January, sunrise is at 7:25 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 5:25 pm EST.

Sunshine

In Glen Isle, the average sunshine in January is 5.3h.

UV index

The months with the lowest UV index in Glen Isle are January, February and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The daily maximum UV index of 2 in January interprets into the following advice:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
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Frequently asked questions

What are the coldest months in Glen Isle?

January is the coldest month in Glen Isle, with the temperature often reaching an average high of 40.3°F (4.6°C) and an average low of 29.8°F (-1.2°C).

How cold is January in Glen Isle?

In January, the average high-temperature and low-temperature are 40.3°F (4.6°C) and 29.8°F (-1.2°C) respectively.

What are the least humid months in Glen Isle?

The months with the lowest humidity in Glen Isle are January, March, April and November, with an average relative humidity of 72%.

What is the average humidity in January in Glen Isle?

In Glen Isle, Maryland, the average relative humidity in January is 72%.

What is the driest month in Glen Isle?

January is the month with the least rainfall. Rain falls for 6 days and accumulates 0.47" (12mm) of precipitation.

How much does it rain in Glen Isle in January?

In Glen Isle, Maryland, in January, during 6 rainfall days, 0.47" (12mm) of precipitation is typically accumulated.

When does it snow the most in Glen Isle?

The month with the most snowfall in Glen Isle is January, when snow falls for 2.3 days and typically aggregates up to 0.67" (17mm) of snow.

How many days does it snow in January in Glen Isle?

In Glen Isle, Maryland, in January, during 2.3 snowfall days, 0.67" (17mm) of snow is typically accumulated.

What is the average length of the day in January in Glen Isle?

The average day length in January in Glen Isle is 9h and 48min.

What time are sunrise and sunset in January in Glen Isle?

In January, on the first day of the month, sunrise is at 7:25 am and sunset at 4:54 pm. On the last day of the month, in Glen Isle, sunrise is at 7:13 am and sunset at 5:25 pm EST.

How long on average sun shines in January in Glen Isle?

In January, the average sunshine duration in Glen Isle, Maryland, is 5.3h.

When is the lowest UV index in Glen Isle?

The months with the lowest UV index in Glen Isle, Maryland, are January, February and December, with an average maximum UV index of 2.

How high is the UV index in January in Glen Isle?

In January, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Glen Isle, MD

Average temperature in January - Glen Isle, MD
  • Average high temperature in January: 40.3°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (40.3°F).

  • Average low temperature in January: 29.8°F

The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

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Average pressure in January
Glen Isle, MD

Average pressure in January - Glen Isle, MD
  • 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 (29.94"Hg).

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Average wind speed in January
Glen Isle, MD

Average wind speed in January - Glen Isle, MD
  • Average wind speed in January: 10mph

The windiest month (with the highest average wind speed) is January (10mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

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Average humidity in January
Glen Isle, MD

Average humidity in January - Glen Isle, MD
  • Average humidity in January: 72%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March, April and November (72%).

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Average rainfall in January
Glen Isle, MD

Average rainfall in January - Glen Isle, MD
  • Average rainfall in January: 0.47"

The wettest month (with the highest rainfall) is August (1.69").
The driest month (with the least rainfall) is January (0.47").

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Average rainfall days in January
Glen Isle, MD

Average rainfall days in January - Glen Isle, MD
  • Average rainfall days in January: 6 days

The months with the highest number of rainy days are July and August (14.3 days).
The month with the least rainy days is November (5.3 days).

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Average snowfall in January
Glen Isle, MD

Average snowfall in January - Glen Isle, MD
  • Average snowfall in January: 0.67"

The month with the highest snowfall is January (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in January
Glen Isle, MD

Average snowfall days in January - Glen Isle, MD
  • Average snowfall days in January: 2.3 days

The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in January /
Average sunshine in January
Glen Isle, MD

Average daylight in January / Average sunshine in January - Glen Isle, MD
  • Average daylight in January: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in January: 5h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

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Average sunshine days in January
Glen Isle, MD

Average sunshine days in January - Glen Isle, MD
  • Average sunshine days in January: 23 days

The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is August (13.8 days).

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Average UV index in January
Glen Isle, MD

Average UV index in January - Glen Isle, MD
  • 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 and December (UV index 2).

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Average cloud cover in January
Glen Isle, MD

Average cloud cover in January - Glen Isle, MD
  • Average cloud cover in January: 43

The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in January
Glen Isle, MD

Average visibility in January - Glen Isle, MD
  • Average visibility in January: 6mi

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

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Glen Isle, Maryland, USA

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