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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
Climate and monthly weather forecast
Weather in January
January, like December, in Glenn Dale, Maryland, is a wintry winter month, with an average temperature ranging between min 28°F (-2.2°C) and max 39.7°F (4.3°C). During the coldest month, January, temperatures average a high of 39.7°F (4.3°C) and a low of 28°F (-2.2°C). Weather in January »
Weather in February
February, the last month of the winter in Glenn Dale, is a frosty month, with an average temperature varying between 30.4°F (-0.9°C) and 43.5°F (6.4°C). Glenn Dale's weather in February, with an average high-temperature of a frosty 43.5°F (6.4°C), subtly shifts from January's 39.7°F (4.3°C). Weather in February »
Weather in March
March, the first month of the spring in Glenn Dale, is a fresh month, with an average temperature ranging between min 37.2°F (2.9°C) and max 51.8°F (11°C). March introduces a minor temperature shift, with average high-temperatures adjusting from February's frosty 43.5°F (6.4°C) to a fresh 51.8°F (11°C). Weather in March »
Weather in April
April is an enjoyable spring month in Glenn Dale, Maryland, with an average temperature fluctuating between 47.5°F (8.6°C) and 63.7°F (17.6°C). Glenn Dale in April experiences an increase in the average high-temperature, moving from March's cool 51.8°F (11°C) to an enjoyable 63.7°F (17.6°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Glenn Dale, Maryland, with an average temperature varying between 73.2°F (22.9°C) and 57°F (13.9°C). With the arrival of May, the average high-temperature transitions from a refreshing 63.7°F (17.6°C) in April to an agreeable 73.2°F (22.9°C). Weather in May »
Weather in June
June, the first month of the summer in Glenn Dale, is a warm month, with an average temperature ranging between max 81.1°F (27.3°C) and min 64.9°F (18.3°C). With the onset of June, Glenn Dale observes a minor temperature ascent, with the average high-temperature adjusting from May's pleasant 73.2°F (22.9°C) to a moderately hot 81.1°F (27.3°C). Weather in June »
Weather in July
July is a hot summer month in Glenn Dale, Maryland, with temperature in the range of an average low of 69.8°F (21°C) and an average high of 86.4°F (30.2°C). The warmest time of the year is July, with temperatures averaging a high of 86.4°F (30.2°C) and a low of 69.8°F (21°C). During July, the heat index is calculated to be a sweltering 96.8°F (36°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Glenn Dale, Maryland, with an average temperature fluctuating between 68.7°F (20.4°C) and 84.4°F (29.1°C). The shift into August records an average high-temperature of a warm 84.4°F (29.1°C), subtly varied from July's 86.4°F (30.2°C). Weather in August »
Weather in September
September, the first month of the autumn in Glenn Dale, is still a warm month, with an average temperature ranging between min 62.8°F (17.1°C) and max 77.9°F (25.5°C). Start of September brings a slight shift in the average high-temperature, dipping a bit from August's moderately hot 84.4°F (29.1°C) to a still warm 77.9°F (25.5°C). Weather in September »
Weather in October
October, like September, in Glenn Dale, Maryland, is another refreshing autumn month, with an average temperature varying between 52°F (11.1°C) and 66°F (18.9°C). Glenn Dale in October experiences a subtle temperature decline, with average high-temperatures reducing from a warm 77.9°F (25.5°C) in September to a refreshing 66°F (18.9°C). Weather in October »
Weather in November
November, the last month of the autumn in Glenn Dale, is also a fresh month, with an average temperature fluctuating between 40.5°F (4.7°C) and 54°F (12.2°C). A shift in Glenn Dale's weather is observed as October turns into November, with the average high temperature reducing from a comfortable 66°F (18.9°C) to a cool 54°F (12.2°C). Weather in November »
Weather in December
The first month of the winter, December, is still a chilly month in Glenn Dale, Maryland, with an average temperature ranging between min 34.5°F (1.4°C) and max 45.5°F (7.5°C). With the onset of December, Glenn Dale's average high-temperature slightly adjusts, moderately receding from November's fresh 54°F (12.2°C) to a frosty 45.5°F (7.5°C). Weather in December »
Updated: Jul 27, 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 are the coldest months?
In Glenn Dale, January is known for its average lowest temperatures, reaching a high of 39.7°F (4.3°C) and a low of 28°F (-2.2°C).
What is the driest month?
The month with the least rainfall is January, when the rain falls for 8.9 days and typically collects 2.05" (52mm) of precipitation.
How much does it rain?
In Glenn Dale, during the entire year, the rain falls for 156.7 days and collects up to 31.81" (808mm) of precipitation.
When does it snow?
Months with snowfall are January through April, November and December.
When does it snow the most?
The month with the most snowfall is January, when snow falls for 4.3 days and typically aggregates up to 2.36" (60mm) of snow.
How many days does it snow?
Throughout the year, there are 13.6 snowfall days, and 6.73" (171mm) of snow is accumulated.
When is the lowest UV index?
The months with the lowest UV index are January and December, with an average maximum UV index of 2.
What is the month with the least sunshine?
With an average of 5h of sunshine, February has the least sunshine of the year.
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.
What is the least humid month?
April is the least humid month in Glenn Dale, with an average relative humidity of 71%.
What is the most humid month?
The most humid month is May, with an average relative humidity of 77%.
When it does not snow?
May through October are months without snowfall.
What are the months with the highest UV index?
The months with the highest UV index are May through August, with an average maximum UV index of 6.
When are the longest days?
June has the longest days of the year, with an average of 14h and 54min of daylight.
What month is the hottest?
July, with its average high-temperature of 86.4°F (30.2°C) and an average low-temperature of 69.8°F (21°C), holds the record as the warmest month.
What month has the most sunshine?
July has the most sunshine of the year in Glenn Dale, with an average of 10.9h of sunshine.
What is the rainiest month?
August is the month with the most rainfall. Rain falls for 16.2 days and accumulates 3.62" (92mm) 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
Glenn Dale, MD
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (39.7°F).
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (28°F).
Average pressure
Glenn Dale, 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:
29.97"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:
30.14"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Glenn Dale, MD
- Average wind speed in January:
8.5mph - Average wind speed in February:
8.6mph - Average wind speed in March:
8.8mph - Average wind speed in April:
8.5mph - Average wind speed in May:
7mph - Average wind speed in June:
6.5mph
- Average wind speed in July:
5.6mph - Average wind speed in August:
5.6mph - Average wind speed in September:
6.4mph - Average wind speed in October:
7.3mph - Average wind speed in November:
7.6mph - Average wind speed in December:
7.8mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).
Average humidity
Glenn Dale, MD
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is April (71%).
Average rainfall
Glenn Dale, MD
- Average rainfall in January:
2.05" - Average rainfall in February:
2.13" - Average rainfall in March:
2.4" - Average rainfall in April:
2.72" - Average rainfall in May:
2.95" - Average rainfall in June:
2.91"
- Average rainfall in July:
3.39" - Average rainfall in August:
3.62" - Average rainfall in September:
2.13" - Average rainfall in October:
2.68" - Average rainfall in November:
2.17" - Average rainfall in December:
2.68"
The wettest month (with the highest rainfall) is August (3.62").
The driest month (with the least rainfall) is January (2.05").
Average rainfall days
Glenn Dale, MD
- Average rainfall days in January:
8.9 days - Average rainfall days in February:
9.7 days - Average rainfall days in March:
13.7 days - Average rainfall days in April:
15.4 days - Average rainfall days in May:
17.5 days - Average rainfall days in June:
15.1 days
- Average rainfall days in July:
16.8 days - Average rainfall days in August:
16.2 days - Average rainfall days in September:
12.6 days - Average rainfall days in October:
11.8 days - Average rainfall days in November:
9.2 days - Average rainfall days in December:
9.8 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (8.9 days).
Average snowfall
Glenn Dale, MD
The month with the highest snowfall is January (2.36").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Glenn Dale, MD
- Average snowfall days in January:
4.3 days - Average snowfall days in February:
3.8 days - Average snowfall days in March:
2.7 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:
0.3 days - Average snowfall days in December:
2.4 days
The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Glenn Dale, 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 2min - 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 1min - 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:
8h and 5min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 5min - Average sunshine in August:
10h and 2min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 4min - Average sunshine in December:
5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days
Glenn Dale, MD
- Average sunshine days in January:
18.5 days - Average sunshine days in February:
15.8 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
13.1 days - Average sunshine days in May:
11.5 days - Average sunshine days in June:
13.1 days
- Average sunshine days in July:
12.2 days - Average sunshine days in August:
13 days - Average sunshine days in September:
16 days - Average sunshine days in October:
16.9 days - Average sunshine days in November:
19 days - Average sunshine days in December:
18.2 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (11.5 days).
Average UV index
Glenn Dale, 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 and December (UV index 2).
Average cloud cover
Glenn Dale, MD
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility
Glenn Dale, 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).