July weather forecast
Potomac Heights, MD

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Weather in July

July is a hot summer month in Potomac Heights, Maryland, with an average temperature fluctuating between 88.2°F (31.2°C) and 68.5°F (20.3°C).

Temperature

July, with average temperatures reaching a high of 88.2°F (31.2°C) and a low of 68.5°F (20.3°C), is the warmest month.

Heat index

July's average heat index is appraised at a fiery hot 102.2°F (39°C). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

The months with the lowest humidity in Potomac Heights are April and July, with an average relative humidity of 72%.

Rainfall

In Potomac Heights, in July, during 16.9 rainfall days, 3.31" (84mm) of precipitation is typically accumulated. In Potomac Heights, Maryland, during the entire year, the rain falls for 164.3 days and collects up to 32.32" (821mm) of precipitation.

Snowfall

May through November are months without snowfall.

Daylight

The average length of the day in July is 14h and 33min.
On the first day of the month, sunrise is at 5:48 am and sunset at 8:36 pm. On the last day of July, in Potomac Heights, sunrise is at 6:10 am and sunset at 8:19 pm EDT.

Sunshine

The month with the most sunshine is July, with an average of 10.8h of sunshine.

UV index

The months with the highest UV index in Potomac Heights are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: An average UV index of 6 in July transforms into this advice:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
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Frequently asked questions

What time of the year is the hottest in Potomac Heights?

Potomac Heights's warmest temperatures are experienced in July, with average high temperatures of 88.2°F (31.2°C) and lows of 68.5°F (20.3°C).

How hot does it get in Potomac Heights in July?

Potomac Heights in July has an average high-temperature of 88.2°F (31.2°C) and an average low-temperature of 68.5°F (20.3°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in July is appraised at 102.2°F (39°C).

What is the least humid month in Potomac Heights?

The months with the lowest humidity in Potomac Heights, Maryland, are April and July, with an average relative humidity of 72%.

What is the average humidity in July in Potomac Heights?

In July, the average relative humidity in Potomac Heights is 72%.

How much does it rain in Potomac Heights in July?

In Potomac Heights, in July, during 16.9 rainfall days, 3.31" (84mm) of precipitation is typically accumulated.

When it does not snow in Potomac Heights?

May through November are months without snowfall in Potomac Heights.

What is the average length of the day in July in Potomac Heights?

In July, the average day length is 14h and 33min.

When are sunrise and sunset in July in Potomac Heights?

On the first day of July in Potomac Heights, Maryland, sunrise is at 5:48 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 8:19 pm EDT.

What month has the most sunshine in Potomac Heights?

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

How many hours of sunshine does Potomac Heights have in July?

In Potomac Heights, the average sunshine duration in July is 10.8h.

When is the highest UV index in Potomac Heights?

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

What is the UV index intensity in July in Potomac Heights?

The average daily maximum UV index in July in Potomac Heights is 6. A UV Index of 6 to 7 symbolizes a high health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Potomac Heights, MD

Average temperature in July - Potomac Heights, MD
  • Average high temperature in July: 88.2°F

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).

  • Average low temperature in July: 68.5°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).

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Average pressure in July
Potomac Heights, MD

Average pressure in July - Potomac Heights, MD
  • Average pressure in July: 29.97"Hg

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

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Average wind speed in July
Potomac Heights, MD

Average wind speed in July - Potomac Heights, MD
  • Average wind speed in July: 4.8mph

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).

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Average humidity in July
Potomac Heights, MD

Average humidity in July - Potomac Heights, MD
  • Average humidity in July: 72%

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%).

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Average rainfall in July
Potomac Heights, MD

Average rainfall in July - Potomac Heights, MD
  • Average rainfall in July: 3.31"

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

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Average rainfall days in July
Potomac Heights, MD

Average rainfall days in July - Potomac Heights, MD
  • Average rainfall days in July: 16.9 days

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).

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Average snowfall in July
Potomac Heights, MD

Average snowfall in July - Potomac Heights, MD
  • Average snowfall in July: 0"

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").

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Average snowfall days in July
Potomac Heights, MD

Average snowfall days in July - Potomac Heights, MD
  • Average snowfall days in July: 0 days

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).

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Average daylight in July /
Average sunshine in July
Potomac Heights, MD

Average daylight in July / Average sunshine in July - Potomac Heights, MD
  • Average daylight in July: 14h and 4min

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 July: 10h and 5min

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).

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Average sunshine days in July
Potomac Heights, MD

Average sunshine days in July - Potomac Heights, MD
  • Average sunshine days in July: 10.9 days

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

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Average UV index in July
Potomac Heights, MD

Average UV index in July - Potomac Heights, MD
  • Average UV index in July: 6

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).

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Average cloud cover in July
Potomac Heights, MD

Average cloud cover in July - Potomac Heights, MD
  • Average cloud cover in July: 30

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in July
Potomac Heights, MD

Average visibility in July - Potomac Heights, MD
  • Average visibility in July: 6mi

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).

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Potomac Heights, Maryland, USA

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