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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 Marriottsville, Maryland, is an icy winter month, with an average temperature varying between 25°F (-3.9°C) and 37.6°F (3.1°C). During the coldest month, January, temperatures average a high of 37.6°F (3.1°C) and a low of 25°F (-3.9°C). Weather in January »
Weather in February
February, the last month of the winter in Marriottsville, is also a wintry month, with an average temperature fluctuating between 41.4°F (5.2°C) and 27.3°F (-2.6°C). A minor adjustment in Marriottsville's average high-temperature is noted with the start of February, touching a still cold 41.4°F (5.2°C) from January's 37.6°F (3.1°C). Weather in February »
Weather in March
The first month of the spring, March, is a cool month in Marriottsville, Maryland, with an average temperature ranging between max 50°F (10°C) and min 34.3°F (1.3°C). As Marriottsville welcomes March, the average high-temperature displays a subtle shift, adjusting from an icy 41.4°F (5.2°C) in February to a fresh 50°F (10°C). Weather in March »
Weather in April
April is a refreshing spring month in Marriottsville, Maryland, with an average temperature varying between 62.2°F (16.8°C) and 44.2°F (6.8°C). With the onset of April, Marriottsville sees a temperature rise, with the average high-temperature moving from March's cool 50°F (10°C) to an enjoyable 62.2°F (16.8°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Marriottsville, Maryland, with an average temperature ranging between min 54.1°F (12.3°C) and max 71.8°F (22.1°C). An escalation in the average high-temperature is seen with the onset of May, moving from a refreshing 62.2°F (16.8°C) in April to an agreeable 71.8°F (22.1°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Marriottsville, Maryland, with an average temperature fluctuating between 79.3°F (26.3°C) and 62.1°F (16.7°C). In Marriottsville, the onset of June comes with a modest high-temperature shift, transitioning from May's pleasant 71.8°F (22.1°C) to a moderately hot 79.3°F (26.3°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Marriottsville, Maryland, with temperature in the range of an average high of 84.7°F (29.3°C) and an average low of 66.7°F (19.3°C). July, noted for its average high-temperature of 84.7°F (29.3°C) and an average low-temperature of 66.7°F (19.3°C), is considered the warmest month. July's average heat index 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 Marriottsville, Maryland, with an average temperature fluctuating between 82.6°F (28.1°C) and 64.9°F (18.3°C). With the transition into August, Marriottsville notes an average high-temperature of a still moderately hot 82.6°F (28.1°C), closely resembling July. Weather in August »
Weather in September
September, the first month of the autumn in Marriottsville, is still a warm month, with temperature in the range of an average high of 75.9°F (24.4°C) and an average low of 59°F (15°C). The arrival of September is marked by a minor reduction in average high-temperature, sliding from 82.6°F (28.1°C) in August to a still moderately hot 75.9°F (24.4°C). Weather in September »
Weather in October
October, like September, in Marriottsville, Maryland, is another enjoyable autumn month, with an average temperature varying between 48.4°F (9.1°C) and 64.4°F (18°C). The onset of October introduces a moderate change in Marriottsville's weather, with average high-temperatures falling from September's moderately hot 75.9°F (24.4°C) to a refreshing 64.4°F (18°C). Weather in October »
Weather in November
The last month of the autumn, November, is another cool month in Marriottsville, Maryland, with temperature in the range of an average high of 52.3°F (11.3°C) and an average low of 37.6°F (3.1°C). Marriottsville's progression into November involves a drop in the average high-temperature, receding from a refreshing 64.4°F (18°C) in October to a cool 52.3°F (11.3°C). Weather in November »
Weather in December
December, the first month of the winter in Marriottsville, is still a chilly month, with temperature in the range of an average low of 31.5°F (-0.3°C) and an average high of 43.5°F (6.4°C). December's onset brings a negligible change in high-temperatures, falling from a cool 52.3°F (11.3°C) in November to a chilly 43.5°F (6.4°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest month in Marriottsville?
Marriottsville notes the coldest temperatures in January, with a average high of 37.6°F (3.1°C) and a low of 25°F (-3.9°C).
How many days does it rain in Marriottsville?
In Marriottsville, during the entire year, the rain falls for 159 days and collects up to 31.61" (803mm) of precipitation.
When does it snow in Marriottsville?
January through May, November and December are months with snowfall in Marriottsville, Maryland.
How many days does it snow in Marriottsville?
In Marriottsville, during the entire year, snow falls for 18.7 days and aggregates up to 9.96" (253mm) of snow.
What are the months with the least sunshine in Marriottsville?
The months with the least sunshine are January and February, with an average of 4.8h of sunshine.
What are the months with the lowest UV index in Marriottsville?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
What is the driest month in Marriottsville?
February is the month with the least rainfall in Marriottsville, Maryland. Rain falls for 8.8 days and accumulates 1.97" (50mm) of precipitation.
When does it snow the most in Marriottsville?
March is the month with the most snowfall in Marriottsville, Maryland. Snow falls for 3.8 days and accumulates 2.8" (71mm) of snow.
When is Daylight Saving Time (DST) in Marriottsville?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Marriottsville, 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 in Marriottsville?
The months with the lowest humidity are April and July, with an average relative humidity of 74%.
What is the most humid month in Marriottsville?
With an average relative humidity of 79%, May is the most humid month.
What are the months with the highest UV index in Marriottsville?
May through August, with an average maximum UV index of 6, are months with the highest UV index.
When it does not snow in Marriottsville?
In Marriottsville, Maryland, snow does not fall in June through October.
When are the longest days in Marriottsville?
With an average of 14h and 54min of daylight, June has the longest days of the year.
What month is the hottest in Marriottsville?
Marriottsville's July weather, marked by an average high temperature of 84.7°F (29.3°C) and an average low temperature of 66.7°F (19.3°C), is the warmest in the year.
What month has the most sunshine in Marriottsville?
July has the most sunshine of the year in Marriottsville, Maryland, with an average of 10.6h of sunshine.
What is the rainiest month in Marriottsville?
The month with the most rainfall is August, when the rain falls for 16.8 days and typically aggregates up to 3.9" (99mm) of precipitation.
What is the month with the shortest days in Marriottsville?
December has the shortest days of the year, with an average of 9h and 30min of daylight.
Average temperature
Marriottsville, 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 (37.6°F).
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure
Marriottsville, 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:
30.06"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
Marriottsville, MD
- Average wind speed in January:
8.6mph - Average wind speed in February:
8.7mph - Average wind speed in March:
8.8mph - Average wind speed in April:
8.5mph - Average wind speed in May:
6.8mph - Average wind speed in June:
6.2mph
- Average wind speed in July:
5.3mph - Average wind speed in August:
5.3mph - Average wind speed in September:
6mph - Average wind speed in October:
7.2mph - Average wind speed in November:
7.6mph - Average wind speed in December:
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 (5.3mph).
Average humidity
Marriottsville, MD
The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are April and July (74%).
Average rainfall
Marriottsville, MD
- Average rainfall in January:
2.05" - Average rainfall in February:
1.97" - Average rainfall in March:
2.28" - Average rainfall in April:
2.48" - Average rainfall in May:
3.23" - Average rainfall in June:
2.64"
The wettest month (with the highest rainfall) is August (3.9").
The driest month (with the least rainfall) is February (1.97").
Average rainfall days
Marriottsville, MD
- Average rainfall days in January:
8.6 days - Average rainfall days in February:
8.8 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
14.9 days - Average rainfall days in May:
17.7 days - Average rainfall days in June:
15.9 days
- Average rainfall days in July:
17.4 days - Average rainfall days in August:
16.8 days - Average rainfall days in September:
13.9 days - Average rainfall days in October:
12.2 days - Average rainfall days in November:
9.5 days - Average rainfall days in December:
10.5 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (8.6 days).
Average snowfall
Marriottsville, MD
- Average snowfall in January:
2.44" - Average snowfall in February:
2.48" - Average snowfall in March:
2.8" - Average snowfall in April:
0.31" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The month with the highest snowfall is March (2.8").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Marriottsville, MD
- Average snowfall days in January:
5.6 days - Average snowfall days in February:
5.3 days - Average snowfall days in March:
3.8 days - Average snowfall days in April:
0.2 days - Average snowfall days in May:
0.1 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:
3.2 days
The month with the highest number of snowfall days is January (5.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight / Average sunshine
Marriottsville, MD
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 4min - 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 0min - 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:
4h and 5min - Average sunshine in February:
4h and 5min - Average sunshine in March:
6h and 3min - Average sunshine in April:
8h and 3min - Average sunshine in May:
8h and 3min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 3min - 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 36min).
The months with the least sunshine are January and February (Average sunshine: 4h and 48min).
Average sunshine days
Marriottsville, MD
- Average sunshine days in January:
17.5 days - Average sunshine days in February:
14.6 days - Average sunshine days in March:
14.1 days - Average sunshine days in April:
13.9 days - Average sunshine days in May:
11.2 days - Average sunshine days in June:
11.9 days
- Average sunshine days in July:
11.8 days - Average sunshine days in August:
12 days - Average sunshine days in September:
14.6 days - Average sunshine days in October:
16.8 days - Average sunshine days in November:
18.8 days - Average sunshine days in December:
17.4 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is May (11.2 days).
Average UV index
Marriottsville, 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, November and December (UV index 2).
Average cloud cover
Marriottsville, MD
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility
Marriottsville, MD
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Marriottsville, Maryland, USA
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