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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, in Glen Isle, Maryland, is another cold winter month, with temperature in the range of an average low of 29.8°F (-1.2°C) and an average high of 40.3°F (4.6°C). Glen Isle's January weather reaches an average high of 40.3°F (4.6°C) and an average low of 29.8°F (-1.2°C), making it the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Glen Isle, is a chilly month, with temperature in the range of an average low of 32°F (0°C) and an average high of 43°F (6.1°C). The commencement of February brings an average high-temperature of a frosty 43°F (6.1°C), marking an inconsequential divergence from January. Weather in February »
Weather in March
The first month of the spring, March, is a cool month in Glen Isle, Maryland, with temperature in the range of an average high of 50.5°F (10.3°C) and an average low of 38.5°F (3.6°C). March's arrival coincides with a subtle temperature rise, moving from February's chilly 43°F (6.1°C) to a cool 50.5°F (10.3°C). Weather in March »
Weather in April
April is a refreshing spring month in Glen Isle, Maryland, with an average temperature fluctuating between 48.2°F (9°C) and 62.2°F (16.8°C). Entering April, Glen Isle sees a temperature rise, with the average high-temperature advancing from March's fresh 50.5°F (10.3°C) to a refreshing 62.2°F (16.8°C). Weather in April »
Weather in May
May, the last month of the spring in Glen Isle, is a pleasant month, with temperature in the range of an average low of 57.7°F (14.3°C) and an average high of 71.2°F (21.8°C). In Glen Isle, the average high-temperature in May rises, from a refreshing 62.2°F (16.8°C) in April, to an agreeable 71.2°F (21.8°C). Weather in May »
Weather in June
June, the first month of the summer in Glen Isle, is a warm month, 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 an agreeable 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 another warm summer month, with an average temperature varying between 72°F (22.2°C) and 84.7°F (29.3°C). In Glen Isle, July is identified by the highest average temperatures, reaching a peak of 84.7°F (29.3°C) and a low of 72°F (22.2°C). The heat index value for July is computed to be 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 temperature in the range of an average low of 70.5°F (21.4°C) and an average high of 83.3°F (28.5°C). The arrival of August is marked by an average high-temperature of a still moderately hot 83.3°F (28.5°C), bearing a close resemblance to July. Weather in August »
Weather in September
September, the first month of the autumn in Glen Isle, is also a moderately hot month, with temperature in the range of an average low of 64.6°F (18.1°C) and an average high of 77°F (25°C). September witnesses a gentle descent in average high-temperature, descending from August's moderately hot 83.3°F (28.5°C) 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 temperature in the range of an average high of 66.2°F (19°C) and an average low of 54.5°F (12.5°C). In the transition to October, Glen Isle observes a drop 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 an average temperature varying between 54.5°F (12.5°C) and 43.2°F (6.2°C). November's onset brings a reduction in the average high-temperature, from an enjoyable 66.2°F (19°C) in October to a fresh 54.5°F (12.5°C). Weather in November »
Weather in December
December, the first month of the winter in Glen Isle, is also a frosty month, with an average temperature ranging between min 36.5°F (2.5°C) and max 46°F (7.8°C). The transition to December results in a modest reduction in average high-temperature, moving from a fresh 54.5°F (12.5°C) in November to a frosty 46°F (7.8°C). Weather in December »
Updated: Jul 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
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).
What are the least humid months?
The months with the lowest humidity are January, March, April and November, with an average relative humidity of 72%.
What is the driest month?
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?
Throughout the year, there are 120.4 rainfall days, and 10.47" (266mm) of precipitation is accumulated.
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?
The month with the most snowfall 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 Glen Isle, during the entire year, snow falls for 8.3 days and aggregates up to 1.22" (31mm) of snow.
What are the months with the lowest UV index?
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the month with the least sunshine?
The month with the least sunshine is February, with an average of 5h of sunshine.
When is Daylight Saving Time (DST)?
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?
April through October are months without snowfall.
What is the most humid month?
May is the most humid month, with an average relative humidity of 78%.
When is the highest UV index?
May through August, with an average maximum UV index of 6, are months with the highest UV index.
When are the longest days?
The month with the longest days is June, with an average of 14h and 54min of daylight.
What part of the year is the hottest in Glen Isle?
Glen Isle, Maryland, experiences its average highest temperatures in July, reaching a peak of 84.7°F (29.3°C) and a minimum of 72°F (22.2°C).
What month has the most sunshine?
With an average of 10.8h of sunshine, July has the most sunshine of the year.
What is the rainiest month in Glen Isle?
August is the month with the most rainfall. Rain falls for 14.3 days and accumulates 1.69" (43mm) of precipitation.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 30min of daylight.
Average temperature
Glen Isle, MD
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).
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).
Average pressure
Glen Isle, MD
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.11"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).
Average wind speed
Glen Isle, MD
- Average wind speed in January:
10mph - Average wind speed in February:
9.9mph - Average wind speed in March:
9.9mph - Average wind speed in April:
9.7mph - Average wind speed in May:
8mph - Average wind speed in June:
7.5mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.6mph - Average wind speed in September:
7.6mph - Average wind speed in October:
9mph - Average wind speed in November:
9.3mph - Average wind speed in December:
9.3mph
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).
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%).
Average rainfall
Glen Isle, MD
- Average rainfall in January:
0.47" - Average rainfall in February:
0.55" - Average rainfall in March:
0.67" - Average rainfall in April:
0.75" - Average rainfall in May:
0.87" - Average rainfall in June:
1.26"
- Average rainfall in July:
1.54" - Average rainfall in August:
1.69" - Average rainfall in September:
0.63" - Average rainfall in October:
0.87" - Average rainfall in November:
0.51" - Average rainfall in December:
0.67"
The wettest month (with the highest rainfall) is August (1.69").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days
Glen Isle, MD
- Average rainfall days in January:
6 days - Average rainfall days in February:
6.4 days - Average rainfall days in March:
9.5 days - Average rainfall days in April:
11.3 days - Average rainfall days in May:
13.8 days - Average rainfall days in June:
12.8 days
- Average rainfall days in July:
14.3 days - Average rainfall days in August:
14.3 days - Average rainfall days in September:
10.5 days - Average rainfall days in October:
8.8 days - Average rainfall days in November:
5.3 days - Average rainfall days in December:
7.4 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).
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").
Average snowfall days
Glen Isle, MD
- Average snowfall days in January:
2.3 days - Average snowfall days in February:
2.5 days - Average snowfall days in March:
1.5 days - Average snowfall days in April:
0.1 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.4 days - Average snowfall days in December:
1.5 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).
Average daylight / Average sunshine
Glen Isle, MD
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 3min
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 - Average sunshine in February:
5h and 0min - Average sunshine in March:
6h and 5min - Average sunshine in April:
8h and 5min - Average sunshine in May:
9h and 0min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 5min - Average sunshine in August:
10h and 3min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 5min - Average sunshine in December:
5h and 1min
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).
Average sunshine days
Glen Isle, MD
- Average sunshine days in January:
23 days - Average sunshine days in February:
19.2 days - Average sunshine days in March:
19.8 days - Average sunshine days in April:
17 days - Average sunshine days in May:
14.7 days - Average sunshine days in June:
14.8 days
- Average sunshine days in July:
13.9 days - Average sunshine days in August:
13.8 days - Average sunshine days in September:
17.4 days - Average sunshine days in October:
20 days - Average sunshine days in November:
23.4 days - Average sunshine days in December:
21.5 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).
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).
Average cloud cover
Glen Isle, MD
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).
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).
Glen Isle, Maryland, USA
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