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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 Upper Marlboro, Maryland, is a wintry winter month, with an average temperature varying between 28.2°F (-2.1°C) and 40.1°F (4.5°C). In Upper Marlboro, January is the coldest month, with temperatures averaging a high of 40.1°F (4.5°C) and a low 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 temperature in the range of an average low of 30.9°F (-0.6°C) and an average high of 44.6°F (7°C). Upper Marlboro notes an average high-temperature of a chilly 44.6°F (7°C) in February, displaying minor variation from January. Weather in February »
Weather in March
March, the first month of the spring in Upper Marlboro, is a fresh month, with an average temperature fluctuating between 37.9°F (3.3°C) and 52.3°F (11.3°C). Upper Marlboro perceives a slight temperature ascent during March, with average high-temperatures adjusting 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 ranging between max 64.4°F (18°C) and min 47.7°F (8.7°C). April comes with an increase, with the average high-temperature moving from a cool 52.3°F (11.3°C) in March to a comfortable 64.4°F (18°C). Weather in April »
Weather in May
The last month of the spring, May, is a warm month in Upper Marlboro, Maryland, with an average temperature ranging between max 73.6°F (23.1°C) and min 57°F (13.9°C). With the arrival of May, the average high-temperature transitions from a comfortable 64.4°F (18°C) in April to a moderately hot 73.6°F (23.1°C). Weather in May »
Weather in June
The first month of the summer, June, is also a moderately hot month in Upper Marlboro, Maryland, with an average temperature fluctuating between 64.9°F (18.3°C) and 81.5°F (27.5°C). With the transition into June, Upper Marlboro experiences a subtle uplift in average high-temperatures, adjusting from 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 is a hot summer month in Upper Marlboro, Maryland, with an average temperature ranging between min 69.8°F (21°C) and max 86.7°F (30.4°C). July is Upper Marlboro's warmest month, registering average high temperatures of 86.7°F (30.4°C) and lows of 69.8°F (21°C). In July, the heat index is evaluated at a sweltering 98.6°F (37°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Upper Marlboro, Maryland, with an average temperature ranging between min 68.5°F (20.3°C) and max 84.6°F (29.2°C). In August, Upper Marlboro experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 86.7°F (30.4°C) in July to a moderately hot 84.6°F (29.2°C). Weather in August »
Weather in September
September, the first month of the autumn in Upper Marlboro, is also a moderately hot month, with an average temperature ranging between max 78.3°F (25.7°C) and min 63°F (17.2°C). September's onset corresponds with a subtle shift in the average high-temperature, slightly moving from 84.6°F (29.2°C) in August to a still warm 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 an average temperature varying between 66.2°F (19°C) and 52.2°F (11.2°C). The commencement of October involves a temperature shift, with the average high-temperature dropping from a warm 78.3°F (25.7°C) in September to a comfortable 66.2°F (19°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in Upper Marlboro, Maryland, with an average temperature fluctuating between 40.6°F (4.8°C) and 54.5°F (12.5°C). November involves a decrease in temperature, down 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
The first month of the winter, December, is also a frosty month in Upper Marlboro, Maryland, with an average temperature fluctuating between 34.7°F (1.5°C) and 45.7°F (7.6°C). With the arrival of December, Upper Marlboro experiences a modest decline in average high-temperatures, transitioning from a fresh 54.5°F (12.5°C) in November to a frosty 45.7°F (7.6°C). Weather in December »
[Resources]Frequently asked questions
What are the coldest months in Upper Marlboro?
With its average high temperature of 40.1°F (4.5°C) and a low of 28.2°F (-2.1°C), January is regarded as the coldest month.
What is the least humid month in Upper Marlboro?
The months with the lowest humidity are January, March and April, with an average relative humidity of 72%.
What is the driest month in Upper Marlboro?
The month with the least rainfall is January, when the rain falls for 9.4 days and typically collects 2.05" (52mm) of precipitation.
How many days does it rain in Upper Marlboro?
In Upper Marlboro, Maryland, 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.
When does it snow the most in Upper Marlboro?
January is the month with the most snowfall in Upper Marlboro. Snow falls for 4.6 days and accumulates 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.
What is the month with the lowest UV index in Upper Marlboro?
January, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Upper Marlboro.
What is the month with the least sunshine in Upper Marlboro?
With an average of 5.1h of sunshine, February has the least sunshine of the year.
When is Daylight Saving Time (DST) in Upper Marlboro?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Upper Marlboro, Maryland, 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 most humid month in Upper Marlboro?
May is the most humid month in Upper Marlboro, Maryland, with an average relative humidity of 77%.
When it does not snow in Upper Marlboro?
May through October are months without snowfall in Upper Marlboro.
What is the month with the highest UV index in Upper Marlboro?
The months with the highest UV index in Upper Marlboro, Maryland, are May through August, with an average maximum UV index of 6.
When are the longest days in Upper Marlboro?
The month with the longest days is June, with an average of 14h and 48min of daylight.
What month is the hottest in Upper Marlboro?
During the warmest month in Upper Marlboro, July, temperatures average a high of 86.7°F (30.4°C) and a low of 69.8°F (21°C).
What month has the most sunshine in Upper Marlboro?
The month with the most sunshine in Upper Marlboro is July, with an average of 11h of sunshine.
What is the rainiest month in Upper Marlboro?
The month with the most rainfall 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?
The month with the shortest days in Upper Marlboro is December, with an average of 9h and 30min of daylight.
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 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 48min).
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 1min - Average sunshine in March:
6h and 5min - Average sunshine in April:
9h and 0min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
11h and 0min - 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 5min - Average sunshine in December:
5h and 1min
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).
Upper Marlboro, Maryland, USA
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