Climate and monthly weather forecast
Merryman Heights, MD

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Weather in January

January, like December, in Merryman Heights, Maryland, is another cold winter month, with an average temperature ranging between max 37.6°F (3.1°C) and min 25°F (-3.9°C). January tends to be the coldest month, with temperatures averaging a daily 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 Merryman Heights, is also a wintry month, with an average temperature ranging between max 41.4°F (5.2°C) and min 27.3°F (-2.6°C). The shift from January to February is characterized by an average high-temperature of a still icy 41.4°F (5.2°C), not significantly different from the 37.6°F (3.1°C) of January. Weather in February »

Weather in March

March, the first month of the spring in Merryman Heights, is a cool month, with an average temperature fluctuating between 50°F (10°C) and 34.3°F (1.3°C). In Merryman Heights, the average high-temperature in March slightly rises, from a cold 41.4°F (5.2°C) in February, to a cool 50°F (10°C). Weather in March »

Weather in April

April is a comfortable spring month in Merryman Heights, Maryland, with temperature in the range of an average high of 62.2°F (16.8°C) and an average low of 44.2°F (6.8°C). Merryman Heights's weather in April presents a rise in the average high-temperature, moving from a cool 50°F (10°C) in March to a comfortable 62.2°F (16.8°C). Weather in April »

Weather in May

May, the last month of the spring in Merryman Heights, is an agreeable month, with temperature in the range of an average low of 54.1°F (12.3°C) and an average high of 71.8°F (22.1°C). With the beginning of May, Merryman Heights's average high-temperature sees an increase, transitioning from a refreshing 62.2°F (16.8°C) in April to a pleasant 71.8°F (22.1°C). Weather in May »

Weather in June

June, the first month of the summer in Merryman Heights, is a warm month, with an average temperature varying between 79.3°F (26.3°C) and 62.1°F (16.7°C). As Merryman Heights transitions into June, a marginal rise in the average high-temperature is observed, moving from an agreeable 71.8°F (22.1°C) in May to a warm 79.3°F (26.3°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Merryman Heights, Maryland, with an average temperature ranging between min 66.7°F (19.3°C) and max 84.7°F (29.3°C). July is the month when Merryman Heights experiences its warmest temperatures, averaging a high of 84.7°F (29.3°C) and a low of 66.7°F (19.3°C). July's 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 another warm month in Merryman Heights, Maryland, with an average temperature ranging between max 82.6°F (28.1°C) and min 64.9°F (18.3°C). August's weather records an average high-temperature of a still warm 82.6°F (28.1°C), showing little deviation from July. Weather in August »

Weather in September

September, the first month of the autumn in Merryman Heights, is also a moderately hot month, with an average temperature ranging between max 75.9°F (24.4°C) and min 59°F (15°C). With the commencement of September, Merryman Heights records a moderate temperature decline, with the average high easing from August's moderately hot 82.6°F (28.1°C) to a still warm 75.9°F (24.4°C). Weather in September »

Weather in October

October, like September, in Merryman Heights, Maryland, is another refreshing autumn month, with an average temperature fluctuating between 64.4°F (18°C) and 48.4°F (9.1°C). The shift from September to October involves a decrease in the average high-temperature, from a warm 75.9°F (24.4°C) to a comfortable 64.4°F (18°C). Weather in October »

Weather in November

November, the last month of the autumn in Merryman Heights, is another cool month, with an average temperature ranging between max 52.3°F (11.3°C) and min 37.6°F (3.1°C). Merryman Heights's weather in November involves a decrease in the average high-temperature, moving down from October's refreshing 64.4°F (18°C) to a fresh 52.3°F (11.3°C). Weather in November »

Weather in December

The first month of the winter, December, is still a chilly month in Merryman Heights, Maryland, with an average temperature ranging between max 43.5°F (6.4°C) and min 31.5°F (-0.3°C). The average high-temperature shows a slight dip in December, from November's fresh 52.3°F (11.3°C) to a frosty 43.5°F (6.4°C). Weather in December »

Frequently asked questions

What is the coldest time of year?

January brings the lowest temperatures, with an average high of 37.6°F (3.1°C) and an average low of 25°F (-3.9°C).

How many days does it rain?

In Merryman Heights, during the entire year, the rain falls for 159 days and collects up to 31.61" (803mm) of precipitation.

When does it snow in Merryman Heights?

Months with snowfall are January through May, November and December.

How many days does it snow?

In Merryman Heights, during the entire year, snow falls for 18.7 days and aggregates up to 9.96" (253mm) of snow.

What is the month with the least sunshine?

The months with the least sunshine are January and February, with an average of 4.8h of sunshine.

When is the lowest UV index?

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?

The month with the least rainfall in Merryman Heights is February, when the rain falls for 8.8 days and typically collects 1.97" (50mm) of precipitation.

What is the snowiest month?

The month with the most snowfall is March, when snow falls for 3.8 days and typically aggregates up to 2.8" (71mm) of snow.

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 are the least humid months?

April and July, with an average relative humidity of 74%, are the least humid months.

What is the most humid month?

With an average relative humidity of 79%, May is the most humid month.

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 it does not snow?

June through October are months without snowfall.

When are the longest days?

With an average of 14h and 54min of daylight, June has the longest days of the year.

What time of the year is the hottest?

Merryman Heights experiences its highest temperatures in July, with an average peak of 84.7°F (29.3°C) and a low of 66.7°F (19.3°C).

What month has the most sunshine?

July has the most sunshine of the year, with an average of 10.6h of sunshine.

What is the rainiest month?

August is the month with the most rainfall. Rain falls for 16.8 days and accumulates 3.9" (99mm) of precipitation.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 24min of daylight.

Average temperature
Merryman Heights, MD

Average temperature - Merryman Heights, 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
Merryman Heights, MD

Average pressure - Merryman Heights, MD

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
Merryman Heights, MD

Average wind speed - Merryman Heights, MD

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
Merryman Heights, MD

Average humidity - Merryman Heights, 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
Merryman Heights, MD

Average rainfall - Merryman Heights, MD

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
Merryman Heights, MD

Average rainfall days - Merryman Heights, MD

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
Merryman Heights, MD

Average snowfall - Merryman Heights, MD

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
Merryman Heights, MD

Average snowfall days - Merryman Heights, MD

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
Merryman Heights, MD

Average daylight / Average sunshine - Merryman Heights, MD

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 24min).

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
Merryman Heights, MD

Average sunshine days - Merryman Heights, MD

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
Merryman Heights, MD

Average UV index - Merryman Heights, 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 visibility
Merryman Heights, MD

Average visibility - Merryman Heights, 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).

Merryman Heights, Maryland, USA

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