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 Upper Marlboro, Maryland, is a wintry winter month, with temperature in the range of an average low of 28.2°F (-2.1°C) and an average high of 40.1°F (4.5°C). The coldest month is January, with an average high-temperature of 40.1°F (4.5°C) and an average low-temperature of 28.2°F (-2.1°C). Weather in January »
Weather in February
February, the last month of the winter in Upper Marlboro, is a frosty month, with an average temperature varying between 30.9°F (-0.6°C) and 44.6°F (7°C). In Upper Marlboro, the average high-temperature in February is practically the same as in January - a chilly 44.6°F (7°C). Weather in February »
Weather in March
The first month of the spring, March, is a fresh month in Upper Marlboro, Maryland, with an average temperature ranging between min 37.9°F (3.3°C) and max 52.3°F (11.3°C). In March, the average high-temperature slightly increases from a chilly 44.6°F (7°C) in February to a cool 52.3°F (11.3°C). Weather in March »
Weather in April
April is an enjoyable spring month in Upper Marlboro, Maryland, with an average temperature varying between 64.4°F (18°C) and 47.7°F (8.7°C). In April, the average high-temperature rises from a cool 52.3°F (11.3°C) in March to an enjoyable 64.4°F (18°C). Weather in April »
Weather in May
The last month of the spring, May, is a moderately hot month in Upper Marlboro, Maryland, with an average temperature ranging between min 57°F (13.9°C) and max 73.6°F (23.1°C). In Upper Marlboro, the average high-temperature in May rises from a comfortable 64.4°F (18°C) in April to a warm 73.6°F (23.1°C). Weather in May »
Weather in June
June, the first month of the summer in Upper Marlboro, is also a moderately hot month, with an average temperature fluctuating between 64.9°F (18.3°C) and 81.5°F (27.5°C). In June, the average high-temperature marginally rises from a warm 73.6°F (23.1°C) in May to a still moderately hot 81.5°F (27.5°C). Weather in June »
Weather in July
July in Upper Marlboro, Maryland, is a tropical summer month, with an average temperature ranging between max 86.7°F (30.4°C) and min 69.8°F (21°C). The warmest month is July, with an average high-temperature of 86.7°F (30.4°C) and an average low-temperature of 69.8°F (21°C). In July, the average heat index is calculated to be a torrid 98.6°F (37°C). Weather in July »
Weather in August
August, the last month of the summer in Upper Marlboro, is also a moderately hot month, with an average temperature ranging between min 68.5°F (20.3°C) and max 84.6°F (29.2°C). In Upper Marlboro, the average high-temperature in August is essentially the same as in July - a moderately hot 84.6°F (29.2°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Upper Marlboro, Maryland, with an average temperature fluctuating between 78.3°F (25.7°C) and 63°F (17.2°C). In September, the average high-temperature slightly decreases from a warm 84.6°F (29.2°C) in August to a still moderately hot 78.3°F (25.7°C). Weather in September »
Weather in October
October, like September, in Upper Marlboro, Maryland, is another comfortable autumn month, with temperature in the range of an average low of 52.2°F (11.2°C) and an average high of 66.2°F (19°C). In October, the average high-temperature drops from a warm 78.3°F (25.7°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 Upper Marlboro, is another cool month, with an average temperature ranging between max 54.5°F (12.5°C) and min 40.6°F (4.8°C). In Upper Marlboro, the average high-temperature in November decreases from a comfortable 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 Upper Marlboro, is still a chilly month, with an average temperature varying between 34.7°F (1.5°C) and 45.7°F (7.6°C). In December, the average high-temperature marginally drops from a cool 54.5°F (12.5°C) in November to a frosty 45.7°F (7.6°C). Weather in December »
[Resources]FAQ
What is the coldest month in Upper Marlboro?
January is the coldest month in Upper Marlboro, Maryland, with an average high-temperature of 40.1°F (4.5°C) and an average low-temperature of 28.2°F (-2.1°C).
What is the least humid month in Upper Marlboro?
January, March and April, with an average relative humidity of 72%, are the least humid months in Upper Marlboro, Maryland.
What is the driest month in Upper Marlboro?
The month with the least rainfall in Upper Marlboro is January, when the rain falls for 9.4 days and typically collects 2.05" (52mm) of precipitation.
How much does it rain in Upper Marlboro?
In Upper Marlboro, during the entire year, the rain falls for 164.8 days and collects up to 32.87" (835mm) of precipitation.
When does it snow in Upper Marlboro?
January through April, November and December are months with snowfall.
What is the snowiest month in Upper Marlboro?
The month with the most snowfall is January, when snow falls for 4.6 days and typically aggregates up to 2.76" (70mm) of snow.
How much does it snow in Upper Marlboro?
In Upper Marlboro, during the entire year, snow falls for 15.1 days and aggregates up to 8.5" (216mm) of snow.
When is the lowest UV index in Upper Marlboro?
The months with the lowest UV index are January, November and December, with an average maximum UV index of 2.
What is the month with the least sunshine in Upper Marlboro?
The month with the least sunshine in Upper Marlboro, Maryland, is February, with an average of 5.1h of sunshine.
When is Daylight Saving Time (DST) in Upper Marlboro?
On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts in Upper Marlboro, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from EDT to EST.
What is the most humid month in Upper Marlboro?
May is the most humid month in Upper Marlboro, with an average relative humidity of 77%.
When it does not snow in Upper Marlboro?
In Upper Marlboro, Maryland, snow does not fall in May through October.
What are the months with the highest UV index in Upper Marlboro?
The months with the highest UV index are May through August, with an average maximum UV index of 6.
When are the longest days in Upper Marlboro?
June has the longest days of the year in Upper Marlboro, with an average of 14h and 50min of daylight.
What is the warmest month in Upper Marlboro?
The warmest month is July, with an average high-temperature of 86.7°F (30.4°C) and an average low-temperature of 69.8°F (21°C).
What month has the most sunshine in Upper Marlboro?
July has the most sunshine of the year in Upper Marlboro, Maryland, with an average of 11h of sunshine.
What is the wettest month in Upper Marlboro?
The month with the most rainfall in Upper Marlboro, Maryland, is August, when the rain falls for 17.3 days and typically aggregates up to 3.94" (100mm) of precipitation.
What is the month with the shortest days in Upper Marlboro?
With an average of 9h and 30min of daylight, December has the shortest days of the year in Upper Marlboro.
Average temperature
Upper Marlboro, MD
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (40.1°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 (28.2°F).
Average pressure
Upper Marlboro, MD
- Average pressure in January:
30.11"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:
30.04"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
Upper Marlboro, MD
- Average wind speed in January:
8.3mph - Average wind speed in February:
8.3mph - Average wind speed in March:
8.5mph - Average wind speed in April:
8.3mph - Average wind speed in May:
6.8mph - Average wind speed in June:
6.2mph
- Average wind speed in July:
5.4mph - Average wind speed in August:
5.4mph - Average wind speed in September:
6.2mph - Average wind speed in October:
7.3mph - Average wind speed in November:
7.6mph - Average wind speed in December:
7.6mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.4mph).
Average humidity
Upper Marlboro, MD
The month with the highest relative humidity is May (77%).
The months with the lowest relative humidity are January, March and April (72%).
Average rainfall
Upper Marlboro, MD
- Average rainfall in January:
2.05" - Average rainfall in February:
2.17" - Average rainfall in March:
2.44" - Average rainfall in April:
2.76" - Average rainfall in May:
3.03" - Average rainfall in June:
2.91"
- Average rainfall in July:
3.62" - Average rainfall in August:
3.94" - Average rainfall in September:
2.36" - Average rainfall in October:
2.8" - Average rainfall in November:
2.13" - Average rainfall in December:
2.68"
The wettest month (with the highest rainfall) is August (3.94").
The driest month (with the least rainfall) is January (2.05").
Average rainfall days
Upper Marlboro, MD
- Average rainfall days in January:
9.4 days - Average rainfall days in February:
10.4 days - Average rainfall days in March:
14.5 days - Average rainfall days in April:
15.8 days - Average rainfall days in May:
17.7 days - Average rainfall days in June:
15.8 days
- Average rainfall days in July:
17.8 days - Average rainfall days in August:
17.3 days - Average rainfall days in September:
13.9 days - Average rainfall days in October:
12.3 days - Average rainfall days in November:
8.8 days - Average rainfall days in December:
11.1 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (8.8 days).
Average snowfall
Upper Marlboro, MD
The month with the highest snowfall is January (2.76").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Upper Marlboro, MD
- Average snowfall days in January:
4.6 days - Average snowfall days in February:
4.3 days - Average snowfall days in March:
2.9 days - Average snowfall days in April:
0.3 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:
0.5 days - Average snowfall days in December:
2.5 days
The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Upper Marlboro, MD
- Average daylight in January:
9h and 49min - Average daylight in February:
10h and 46min - Average daylight in March:
11h and 59min - Average daylight in April:
13h and 14min - Average daylight in May:
14h and 19min - Average daylight in June:
14h and 50min
- Average daylight in July:
14h and 34min - Average daylight in August:
13h and 38min - Average daylight in September:
12h and 26min - Average daylight in October:
11h and 10min - Average daylight in November:
10h and 4min - Average daylight in December:
9h and 30min
The month with the longest days is June (Average daylight: 14h and 50min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
5h and 18min - Average sunshine in February:
5h and 6min - Average sunshine in March:
6h and 54min - Average sunshine in April:
9h and 0min - Average sunshine in May:
9h and 6min - Average sunshine in June:
10h and 24min
- Average sunshine in July:
11h and 0min - Average sunshine in August:
10h and 18min - Average sunshine in September:
9h and 6min - Average sunshine in October:
5h and 42min - Average sunshine in November:
5h and 54min - Average sunshine in December:
5h and 12min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days
Upper Marlboro, MD
- Average sunshine days in January:
18.1 days - Average sunshine days in February:
14.2 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
12.3 days - Average sunshine days in May:
11.7 days - Average sunshine days in June:
11.6 days
- Average sunshine days in July:
10.8 days - Average sunshine days in August:
11.7 days - Average sunshine days in September:
14.7 days - Average sunshine days in October:
17.3 days - Average sunshine days in November:
19.5 days - Average sunshine days in December:
16.7 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (10.8 days).
Average UV index
Upper Marlboro, 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, November and December (UV index 2).
Average cloud cover
Upper Marlboro, MD
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility
Upper Marlboro, 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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