July weather forecast
Bethesda, MD

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Weather in July

July is a hot summer month in Bethesda, Maryland, with an average temperature ranging between min 69.4°F (20.8°C) and max 87.8°F (31°C).

Temperature

The warmest time of the year is July, with temperatures averaging a high of 87.8°F (31°C) and a low of 69.4°F (20.8°C).

Heat index

During July, the heat index is computed to be a sweltering 98.6°F (37°C). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', embodies the combination of air temperature and moisture content to illustrate perceived heat. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital 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.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

The least humid month in Bethesda is July, with an average relative humidity of 69%.

Rainfall

In Bethesda, in July, it is raining for 16.1 days, with typically 2.95" (75mm) of accumulated precipitation. In Bethesda, Maryland, during the entire year, the rain falls for 150.3 days and collects up to 28.66" (728mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In July, the average length of the day is 14h and 35min.
On the first day of July in Bethesda, sunrise is at 5:46 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 8:20 pm EDT.

Sunshine

The month with the most sunshine is July, with an average of 10.7h of sunshine.

UV index

The months with the highest UV index in Bethesda are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A daily maximum UV index of 6 in July translates into the following instructions:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Frequently asked questions

What part of the year is the hottest in Bethesda?

July, with an average high of 87.8°F (31°C) and a low of 69.4°F (20.8°C), signifies the warmest month of the year.

How hot is it in Bethesda in July?

An average high-temperature, in July, in Bethesda, is 87.8°F (31°C) and the average low-temperature is 69.4°F (20.8°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in July is computed to be 98.6°F (37°C).

What is the least humid month in Bethesda?

July is the least humid month, with an average relative humidity of 69%.

What is the average humidity in July in Bethesda?

The average relative humidity in July is 69%.

How many days does it rain in July in Bethesda?

In July, in Bethesda, Maryland, the rain falls for 16.1 days. Throughout July, 2.95" (75mm) of precipitation is accumulated.

When it does not snow in Bethesda?

In Bethesda, Maryland, snow does not fall in May through October.

What is the average length of the day in July in Bethesda?

In Bethesda, the average day length in July is 14h and 35min.

What time are sunrise and sunset in July in Bethesda?

In July, on the first day of the month, sunrise is at 5:46 am and sunset at 8:37 pm. On the last day of the month, in Bethesda, sunrise is at 6:08 am and sunset at 8:20 pm EDT.

What month has the most sunshine in Bethesda?

The month with the most sunshine in Bethesda is July, with an average of 10.7h of sunshine.

How long on average sun shines in July in Bethesda?

The average sunshine duration in July in Bethesda is 10.7h.

What is the month with the highest UV index in Bethesda?

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

What is the UV index intensity in July in Bethesda?

The average daily maximum UV index in July in Bethesda is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to Sun's UV rays.
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
Bethesda, MD

Average temperature in July - Bethesda, MD
  • Average high temperature in July: 87.8°F

The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (39.9°F).

  • Average low temperature in July: 69.4°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27°F).

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Average pressure in July
Bethesda, MD

Average pressure in July - Bethesda, 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
Bethesda, MD

Average wind speed in July - Bethesda, MD
  • Average wind speed in July: 5.2mph

The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity in July
Bethesda, MD

Average humidity in July - Bethesda, MD
  • Average humidity in July: 69%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (69%).

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Average rainfall in July
Bethesda, MD

Average rainfall in July - Bethesda, MD
  • Average rainfall in July: 2.95"

The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is January (1.69").

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Average rainfall days in July
Bethesda, MD

Average rainfall days in July - Bethesda, MD
  • Average rainfall days in July: 16.1 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is November (8.5 days).

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Average snowfall in July
Bethesda, MD

Average snowfall in July - Bethesda, MD
  • Average snowfall in July: 0"

The month with the highest snowfall is January (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in July
Bethesda, MD

Average snowfall days in July - Bethesda, MD
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (4.4 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
Bethesda, MD

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

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 July: 10h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 0min).

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Average sunshine days in July
Bethesda, MD

Average sunshine days in July - Bethesda, MD
  • Average sunshine days in July: 12.3 days

The month with the most sunshine days is November (20.4 days).
The months with the least sunshine days are May and July (12.3 days).

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Average UV index in July
Bethesda, MD

Average UV index in July - Bethesda, 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
Bethesda, MD

Average cloud cover in July - Bethesda, MD
  • Average cloud cover in July: 31

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in July
Bethesda, MD

Average visibility in July - Bethesda, 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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Bethesda, Maryland, USA

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