July weather forecast
Gwynn, VA

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Weather in July

July in Gwynn, Virginia, is a hot summer month, with an average temperature varying between 72.3°F (22.4°C) and 87.8°F (31°C).

Temperature

In Gwynn, the month of July registers the highest temperatures, averaging 87.8°F (31°C) at the peak and 72.3°F (22.4°C) at the lowest.

Heat index

In July, the average heat index is calculated to be a fiery hot 100.4°F (38°C). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
For clarity, heat index numbers account for light winds and areas under shade. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

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

Rainfall

In Gwynn, in July, during 16.9 rainfall days, 3.31" (84mm) of precipitation is typically accumulated. Throughout the year, there are 165.3 rainfall days, and 34.25" (870mm) of precipitation is accumulated.

Snowfall

In Gwynn, snow does not fall in April through October.

Daylight

In July, the average length of the day is 14h and 27min.
On the first day of the month, sunrise is at 5:48 am and sunset at 8:30 pm. On the last day of July, in Gwynn, sunrise is at 6:09 am and sunset at 8:14 pm EDT.

Sunshine

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

UV index

June and July, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: During July, 7 as the daily maximum UV index converts into the following advice:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Updated: Jul 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the hottest?

Gwynn's warmest month, July, registers temperatures that range from a high of 87.8°F (31°C) to a low of 72.3°F (22.4°C).

How hot is July?

During July, Gwynn experiences an average high-temperature of 87.8°F (31°C) and a low-temperature of 72.3°F (22.4°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in July is calculated to be 100.4°F (38°C).

What is the least humid month?

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

What is the average humidity in July?

In July, the average relative humidity is 72%.

How many days does it rain in July in Gwynn?

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

When it does not snow?

In Gwynn, snow does not fall in April through October.

How many hours of daylight does Gwynn have in July?

The average day length in July is 14h and 27min.

What time are sunrise and sunset in July?

On the first day of July, sunrise is at 5:48 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 8:14 pm EDT.

What month has the most sunshine?

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

How many hours of sunshine does Gwynn have in July?

In July, the average sunshine duration is 10.8h.

What is the month with the highest UV index?

June and July, with an average maximum UV index of 7, are months with the highest UV index.

How high is the UV index in July?

In July, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's 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
Gwynn, VA

Average temperature in July - Gwynn, VA
  • 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 (45.1°F).

  • Average low temperature in July: 72.3°F

The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).

Average pressure in July
Gwynn, VA

Average pressure in July - Gwynn, VA
  • Average pressure in July: 29.97"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in July
Gwynn, VA

Average wind speed in July - Gwynn, VA
  • Average wind speed in July: 7.1mph

The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).

Average humidity in July
Gwynn, VA

Average humidity in July - Gwynn, VA
  • Average humidity in July: 72%

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

Average rainfall in July
Gwynn, VA

Average rainfall in July - Gwynn, VA
  • Average rainfall in July: 3.31"

The wettest month (with the highest rainfall) is August (3.62").
The driest month (with the least rainfall) is September (2.4").

Average rainfall days in July
Gwynn, VA

Average rainfall days in July - Gwynn, VA
  • Average rainfall days in July: 16.9 days

The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is November (9.6 days).

Average snowfall in July
Gwynn, VA

Average snowfall in July - Gwynn, VA
  • Average snowfall in July: 0"

The month with the highest snowfall is February (1.34").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in July
Gwynn, VA

Average snowfall days in July - Gwynn, VA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in July /
Average sunshine in July
Gwynn, VA

Average daylight in July / Average sunshine in July - Gwynn, VA
  • Average daylight in July: 14h and 3min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • 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 12min).

Average sunshine days in July
Gwynn, VA

Average sunshine days in July - Gwynn, VA
  • Average sunshine days in July: 12.2 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (11.5 days).

Average UV index in July
Gwynn, VA

Average UV index in July - Gwynn, VA
  • Average UV index in July: 7

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in July
Gwynn, VA

Average cloud cover in July - Gwynn, VA
  • Average cloud cover in July: 28

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in July
Gwynn, VA

Average visibility in July - Gwynn, VA
  • 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).

Gwynn, Virginia, USA

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