Climate and monthly 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). 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). Weather in January »

Weather in February

The last month of the winter, February, is a frosty month in Glen Isle, Maryland, with an average temperature ranging between min 32°F (0°C) and max 43°F (6.1°C). February's arrival brings an average high-temperature of a frosty 43°F (6.1°C), demonstrating subtle variation from the preceding month. Weather in February »

Weather in March

March, the first month of the spring in Glen Isle, is a fresh month, with an average temperature fluctuating between 50.5°F (10.3°C) and 38.5°F (3.6°C). The shift from February to March sees a slight increase in the average high-temperature, transitioning from a chilly 43°F (6.1°C) to a cool 50.5°F (10.3°C). Weather in March »

Weather in April

April is an enjoyable spring month in Glen Isle, Maryland, with an average temperature ranging between max 62.2°F (16.8°C) and min 48.2°F (9°C). The beginning of April marks a shift in the average high-temperature, moving from March's fresh 50.5°F (10.3°C) to an enjoyable 62.2°F (16.8°C). Weather in April »

Weather in May

May, the last month of the spring in Glen Isle, is an agreeable month, with temperature in the range of an average high of 71.2°F (21.8°C) and an average low of 57.7°F (14.3°C). May marks a rise in the average high-temperature, moving from April's enjoyable 62.2°F (16.8°C) to a pleasant 71.2°F (21.8°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Glen Isle, Maryland, with an average temperature ranging between max 79.3°F (26.3°C) and min 66.7°F (19.3°C). Glen Isle experiences a minor temperature shift with the start of June, with average high-temperatures moving from a pleasant 71.2°F (21.8°C) in May to a warm 79.3°F (26.3°C). Weather in June »

Weather in July

July, like June, in Glen Isle, Maryland, is a moderately hot summer month, with an average temperature fluctuating between 84.7°F (29.3°C) and 72°F (22.2°C). Glen Isle's July weather, marked by an average high temperature of 84.7°F (29.3°C) and an average low temperature of 72°F (22.2°C), is the warmest in the year. During July, the heat index is appraised at a tropical 93.2°F (34°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Glen Isle, Maryland, with an average temperature fluctuating between 70.5°F (21.4°C) and 83.3°F (28.5°C). Transitioning into August, Glen Isle experiences an average high-temperature of a still moderately hot 83.3°F (28.5°C), marking a minor shift from the preceding month. Weather in August »

Weather in September

September, the first month of the autumn in Glen Isle, is still a warm month, with an average temperature varying between 77°F (25°C) and 64.6°F (18.1°C). Glen Isle's transition into September involves a gentle shift in temperature, receding from a moderately hot 83.3°F (28.5°C) in August to a still warm 77°F (25°C). Weather in September »

Weather in October

October, like September, in Glen Isle, Maryland, is another refreshing autumn month, with an average temperature fluctuating between 66.2°F (19°C) and 54.5°F (12.5°C). October's arrival comes with a decrease in the average high-temperature, moving from a warm 77°F (25°C) in September to an enjoyable 66.2°F (19°C). Weather in October »

Weather in November

November, the last month of the autumn in Glen Isle, is also a fresh month, with temperature in the range of an average high of 54.5°F (12.5°C) and an average low of 43.2°F (6.2°C). In Glen Isle, the average high-temperature in November decreases from an enjoyable 66.2°F (19°C) in October to a cool 54.5°F (12.5°C). Weather in November »

Weather in December

December, the first month of the winter in Glen Isle, is still a chilly month, with temperature in the range of an average low of 36.5°F (2.5°C) and an average high of 46°F (7.8°C). In Glen Isle, entering December brings a subtle temperature decrement, reducing from November's cool 54.5°F (12.5°C) to a frosty 46°F (7.8°C). Weather in December »
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Frequently asked questions

What are the coldest months in Glen Isle?

January is the coldest month in Glen Isle, Maryland, 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).

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 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 many days does it rain in Glen Isle?

In Glen Isle, during the entire year, the rain falls for 120.4 days and collects up to 10.47" (266mm) of precipitation.

When does it snow in Glen Isle?

Months with snowfall in Glen Isle are January through March, November and December.

When does it snow the most in Glen Isle?

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.

How much does it snow in Glen Isle?

Throughout the year, in Glen Isle, Maryland, there are 8.3 snowfall days, and 1.22" (31mm) of snow is accumulated.

When is the lowest UV index in Glen Isle?

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

What is the month with the least sunshine in Glen Isle?

The month with the least sunshine in Glen Isle is February, with an average of 5h of sunshine.

When is Daylight Saving Time (DST) in Glen Isle?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

When it does not snow in Glen Isle?

April through October are months without snowfall.

What is the most humid month in Glen Isle?

With an average relative humidity of 78%, May is the most humid month in Glen Isle.

What is the month with the highest UV index in Glen Isle?

May through August, with an average maximum UV index of 6, are months with the highest UV index in Glen Isle.

When are the longest days in Glen Isle?

June has the longest days of the year, with an average of 14h and 54min of daylight.

What is the warmest month in Glen Isle?

The average temperatures reach their apex in July, averaging 84.7°F (29.3°C) at the high end and 72°F (22.2°C) at the low end.

What month has the most sunshine in Glen Isle?

The month with the most sunshine in Glen Isle, Maryland, is July, with an average of 10.8h of sunshine.

What is the wettest month in Glen Isle?

The month with the most rainfall in Glen Isle, Maryland, is August, when the rain falls for 14.3 days and typically aggregates up to 1.69" (43mm) of precipitation.

What is the month with the shortest days in Glen Isle?

The month with the shortest days in Glen Isle is December, with an average of 9h and 30min of daylight.

Average pressure
Glen Isle, MD

Average pressure - Glen Isle, MD

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
Glen Isle, MD

Average wind speed - Glen Isle, MD

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
Glen Isle, MD

Average humidity - Glen Isle, MD

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
Glen Isle, MD

Average rainfall - Glen Isle, MD

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
Glen Isle, MD

Average rainfall days - Glen Isle, MD

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
Glen Isle, MD

Average snowfall - Glen Isle, MD

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
Glen Isle, MD

Average snowfall days - Glen Isle, MD

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 / Average sunshine
Glen Isle, MD

Average daylight / Average sunshine - Glen Isle, MD

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).

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
Glen Isle, MD

Average sunshine days - Glen Isle, MD

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
Glen Isle, MD

Average UV index - Glen Isle, MD

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 visibility
Glen Isle, MD

Average visibility - Glen Isle, MD

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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