Climate and monthly weather forecast
Potomac Heights, MD

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Weather in January

January, the same as December, is an icy winter month in Potomac Heights, Maryland, with an average temperature ranging between min 27.3°F (-2.6°C) and max 41°F (5°C). Potomac Heights notes the coldest temperatures in January, with a high average of 41°F (5°C) and a low of 27.3°F (-2.6°C). Weather in January »

Weather in February

February, the last month of the winter in Potomac Heights, is a chilly month, with temperature in the range of an average high of 45.3°F (7.4°C) and an average low of 29.7°F (-1.3°C). Shifting into February, Potomac Heights records an average high-temperature of a frosty 45.3°F (7.4°C), presenting minor fluctuations compared to the previous month. Weather in February »

Weather in March

The first month of the spring, March, is a fresh month in Potomac Heights, Maryland, with an average temperature varying between 37°F (2.8°C) and 53.2°F (11.8°C). The arrival of March signals a slight increase in the average high-temperature, moving from a chilly 45.3°F (7.4°C) in February to a cool 53.2°F (11.8°C). Weather in March »

Weather in April

April is a refreshing spring month in Potomac Heights, Maryland, with an average temperature fluctuating between 65.5°F (18.6°C) and 47.1°F (8.4°C). Noticing a change, the average high-temperature during April moves from March's cool 53.2°F (11.8°C) to an enjoyable 65.5°F (18.6°C). Weather in April »

Weather in May

The last month of the spring, May, is a warm month in Potomac Heights, Maryland, with an average temperature varying between 75.2°F (24°C) and 56.3°F (13.5°C). Potomac Heights experiences a temperature shift with the start of May, with average high-temperatures moving from an enjoyable 65.5°F (18.6°C) in April to a warm 75.2°F (24°C). Weather in May »

Weather in June

The first month of the summer, June, is also a moderately hot month in Potomac Heights, Maryland, with temperature in the range of an average high of 83.1°F (28.4°C) and an average low of 63.5°F (17.5°C). June showcases a minor temperature ascent, adjusting from May's moderately hot 75.2°F (24°C) to a still warm 83.1°F (28.4°C). Weather in June »

Weather in July

July in Potomac Heights, Maryland, is a hot summer month, with an average temperature fluctuating between 88.2°F (31.2°C) and 68.5°F (20.3°C). With its high average temperature of 88.2°F (31.2°C) and a low of 68.5°F (20.3°C), July is regarded as the warmest month. The heat index value for July is estimated at a torrid 102.2°F (39°C). Weather in July »

Weather in August

The last month of the summer, August, is another hot month in Potomac Heights, Maryland, with an average temperature ranging between min 66.7°F (19.3°C) and max 86°F (30°C). Potomac Heights experiences a subtle adjustment in high-temperatures to a still tropical 86°F (30°C) with the onset of August, maintaining near parity with July's 88.2°F (31.2°C). Weather in August »

Weather in September

September, the first month of the autumn in Potomac Heights, is still a warm month, with an average temperature ranging between min 61.3°F (16.3°C) and max 79°F (26.1°C). Potomac Heights records a mild change in average high-temperature during September, easing from a hot 86°F (30°C) in August to a moderately hot 79°F (26.1°C). Weather in September »

Weather in October

October, the same as September, is another enjoyable autumn month in Potomac Heights, Maryland, with an average temperature varying between 50.7°F (10.4°C) and 67.1°F (19.5°C). The shift from September to October involves a decrease in the average high-temperature, from a warm 79°F (26.1°C) to a refreshing 67.1°F (19.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in Potomac Heights, Maryland, with temperature in the range of an average low of 38.8°F (3.8°C) and an average high of 54.9°F (12.7°C). November's arrival comes with a decrease in the average high-temperature, moving from an enjoyable 67.1°F (19.5°C) in October to a fresh 54.9°F (12.7°C). Weather in November »

Weather in December

December, the first month of the winter in Potomac Heights, is also a frosty month, with an average temperature varying between 33.6°F (0.9°C) and 46.6°F (8.1°C). The start of December involves a subtle temperature drop, shifting from a fresh 54.9°F (12.7°C) in November to a frosty 46.6°F (8.1°C). Weather in December »
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

January is the coldest month in Potomac Heights, exhibiting average temperatures of 41°F (5°C) at the peak and 27.3°F (-2.6°C) at the base.

What is the driest month?

The month with the least rainfall is January, when the rain falls for 10.1 days and typically collects 2.01" (51mm) of precipitation.

How many days does it rain?

Throughout the year, there are 164.3 rainfall days, and 32.32" (821mm) of precipitation is accumulated.

When does it snow in Potomac Heights?

January through April and December are months with snowfall.

When does it snow the most?

The month with the most snowfall in Potomac Heights is January, when snow falls for 4.8 days and typically aggregates up to 2.44" (62mm) of snow.

How many days does it snow?

Throughout the year, there are 14.6 snowfall days, and 7.8" (198mm) of snow is accumulated.

What is the month with the lowest UV index?

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?

February and December, with an average of 5.2h of sunshine, are months with the least sunshine.

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 72%, are the least humid months.

What is the most humid month?

May, October and December, with an average relative humidity of 77%, are most humid months.

When it does not snow?

In Potomac Heights, snow does not fall in May through November.

What is the month with the highest UV index?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

When are the longest days in Potomac Heights?

June has the longest days of the year, with an average of 14h and 48min of daylight.

What part of the year is the hottest?

With average high temperatures of 88.2°F (31.2°C) and lows of 68.5°F (20.3°C), July is the warmest month.

What month has the most sunshine?

With an average of 10.8h of sunshine, July has the most sunshine of the year in Potomac Heights.

What is the rainiest month?

The month with the most rainfall is August, when the rain falls for 17.7 days and typically aggregates up to 3.86" (98mm) of precipitation.

What is the month with the shortest days in Potomac Heights?

The month with the shortest days is December, with an average of 9h and 30min of daylight.

Average temperature
Potomac Heights, MD

Average temperature - Potomac Heights, MD

The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (41°F).

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).

Average pressure
Potomac Heights, MD

Average pressure - Potomac Heights, MD

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed
Potomac Heights, MD

Average wind speed - Potomac Heights, MD

The windiest months (with the highest average wind speed) are March and April (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

Average humidity
Potomac Heights, MD

Average humidity - Potomac Heights, MD

The months with the highest relative humidity are May, October and December (77%).
The months with the lowest relative humidity are April and July (72%).

Average rainfall
Potomac Heights, MD

Average rainfall - Potomac Heights, MD

The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (2.01").

Average rainfall days
Potomac Heights, MD

Average rainfall days - Potomac Heights, MD

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is November (9.1 days).

Average snowfall
Potomac Heights, MD

Average snowfall - Potomac Heights, MD

The month with the highest snowfall is January (2.44").
The months with the least snowfall are May, June, July, August, September, October and November (0").

Average snowfall days
Potomac Heights, MD

Average snowfall days - Potomac Heights, MD

The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight / Average sunshine
Potomac Heights, MD

Average daylight / Average sunshine - Potomac Heights, MD

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).

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are February and December (Average sunshine: 5h and 12min).

Average sunshine days
Potomac Heights, MD

Average sunshine days - Potomac Heights, MD

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (10.6 days).

Average UV index
Potomac Heights, MD

Average UV index - Potomac 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, November and December (UV index 2).

Average visibility
Potomac Heights, MD

Average visibility - Potomac 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).

Potomac Heights, Maryland, USA

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