July weather forecast
Gwynn Oak, MD

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Weather in July

July, the same as June, is a moderately hot summer month in Gwynn Oak, Maryland, with an average temperature fluctuating between 68.5°F (20.3°C) and 85.3°F (29.6°C).

Temperature

July is the warmest month, with an average high-temperature of 85.3°F (29.6°C) and an average low-temperature of 68.5°F (20.3°C).

Heat index

July's average heat index is computed to be a very hot 95°F (35°C). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.
Heat index details are generally centered around shaded locations and a mild breeze. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is the result of factoring in humidity to the air temperature, indicating perceived warmth. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

July is the least humid month, with an average relative humidity of 72%.

Rainfall

In Gwynn Oak, Maryland, during July, the rain falls for 18.3 days and regularly aggregates up to 3.31" (84mm) of precipitation. In Gwynn Oak, during the entire year, the rain falls for 160.6 days and collects up to 31.3" (795mm) of precipitation.

Snowfall

May through October are months without snowfall in Gwynn Oak.

Daylight

In July, the average length of the day is 14h and 37min.
On the first day of the month, sunrise is at 5:44 am and sunset at 8:37 pm. On the last day of July, in Gwynn Oak, sunrise is at 6:06 am and sunset at 8:19 pm EDT.

Sunshine

With an average of 10.8h of sunshine, July has the most sunshine of the year in Gwynn Oak, Maryland.

UV index

The months with the highest UV index in Gwynn Oak, Maryland, are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: In July, the maximum UV index of 6 suggests these recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
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Frequently asked questions

What part of the year is the hottest in Gwynn Oak?

Gwynn Oak's July weather, with an average high temperature of 85.3°F (29.6°C) and an average low temperature of 68.5°F (20.3°C), tends to be the warmest of the year.

How hot is it in Gwynn Oak in July?

During July, Gwynn Oak experiences an average high-temperature of 85.3°F (29.6°C) and a low-temperature of 68.5°F (20.3°C). In July, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is computed to be 95°F (35°C).

What is the least humid month in Gwynn Oak?

July is the least humid month in Gwynn Oak, with an average relative humidity of 72%.

What is the average humidity in July in Gwynn Oak?

The average relative humidity in July in Gwynn Oak, Maryland, is 72%.

How much does it rain in Gwynn Oak in July?

In Gwynn Oak, Maryland, during July, the rain falls for 18.3 days and regularly aggregates up to 3.31" (84mm) of precipitation.

When it does not snow in Gwynn Oak?

In Gwynn Oak, snow does not fall in May through October.

What is the average length of the day in July in Gwynn Oak?

In Gwynn Oak, Maryland, the average day length in July is 14h and 37min.

What time are sunrise and sunset in July in Gwynn Oak?

On the first day of July in Gwynn Oak, Maryland, sunrise is at 5:44 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 8:19 pm EDT.

What month has the most sunshine in Gwynn Oak?

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

How many hours of sunshine does Gwynn Oak have in July?

The average sunshine duration in July in Gwynn Oak is 10.8h.

What is the month with the highest UV index in Gwynn Oak?

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

How high is the UV index in July in Gwynn Oak?

In Gwynn Oak, the average daily maximum UV index in July is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe 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
Gwynn Oak, MD

Average temperature in July - Gwynn Oak, MD
  • Average high temperature in July: 85.3°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (37.9°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 (26.1°F).

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Average pressure in July
Gwynn Oak, MD

Average pressure in July - Gwynn Oak, 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 (29.94"Hg).

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Average wind speed in July
Gwynn Oak, MD

Average wind speed in July - Gwynn Oak, MD
  • Average wind speed in July: 5.5mph

The windiest month (with the highest average wind speed) is March (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in July
Gwynn Oak, MD

Average humidity in July - Gwynn Oak, MD
  • Average humidity in July: 72%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is July (72%).

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Average rainfall in July
Gwynn Oak, MD

Average rainfall in July - Gwynn Oak, MD
  • Average rainfall in July: 3.31"

The wettest month (with the highest rainfall) is August (3.94").
The driest months (with the least rainfall) are January and February (2.01").

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Average rainfall days in July
Gwynn Oak, MD

Average rainfall days in July - Gwynn Oak, MD
  • Average rainfall days in July: 18.3 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (8.8 days).

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Average snowfall in July
Gwynn Oak, MD

Average snowfall in July - Gwynn Oak, MD
  • Average snowfall in July: 0"

The month with the highest snowfall is March (2.72").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in July
Gwynn Oak, MD

Average snowfall days in July - Gwynn Oak, MD
  • Average snowfall days in July: 0 days

The months with the highest number of snowfall days are January and February (5.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in July /
Average sunshine in July
Gwynn Oak, MD

Average daylight in July / Average sunshine in July - Gwynn Oak, 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 5min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

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Average sunshine days in July
Gwynn Oak, MD

Average sunshine days in July - Gwynn Oak, MD
  • Average sunshine days in July: 11.2 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (10.7 days).

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Average UV index in July
Gwynn Oak, MD

Average UV index in July - Gwynn Oak, 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, February, November and December (UV index 2).

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Average cloud cover in July
Gwynn Oak, MD

Average cloud cover in July - Gwynn Oak, 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
Gwynn Oak, MD

Average visibility in July - Gwynn Oak, MD
  • Average visibility in July: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Gwynn Oak, Maryland, USA

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