July weather forecast
Trevilians, VA

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Weather in July

July is a hot summer month in Trevilians, Virginia, with an average temperature varying between 88.5°F (31.4°C) and 66.2°F (19°C).

Temperature

July, having an average high-temperature of 88.5°F (31.4°C) and an average low-temperature of 66.2°F (19°C), is the warmest month.

Heat index

Throughout July, the heat index is estimated at a sweltering 102.2°F (39°C). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
Heat index values are typically calculated for conditions of shade and a light 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 'felt air temperature' or 'feels like', is a numerical representation of warmth when taking temperature and moisture levels into account. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

With an average relative humidity of 71%, July is the least humid month.

Rainfall

In Trevilians, in July, it is raining for 16.5 days, with typically 2.36" (60mm) of accumulated precipitation. Throughout the year, there are 154.2 rainfall days, and 28.54" (725mm) of precipitation is accumulated.

Snowfall

In Trevilians, snow does not fall in May through October.

Daylight

The average length of the day in July is 14h and 30min.
On the first day of the month, sunrise is at 5:53 am and sunset at 8:39 pm. On the last day of July, sunrise is at 6:15 am and sunset at 8:22 pm EDT.

Sunshine

July has the most sunshine of the year, with an average of 10.8h of sunshine.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: A daily high UV index of 6 in July leads to these guidelines:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the hottest time of year?

In Trevilians, July is the month with the highest recorded average temperatures, measuring a high of 88.5°F (31.4°C) and a low of 66.2°F (19°C).

How hot is July in Trevilians?

The high-temperature, in July, in Trevilians, records 88.5°F (31.4°C), while the low-temperature is 66.2°F (19°C). In July, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is estimated at 102.2°F (39°C).

What is the least humid month?

July is the least humid month, with an average relative humidity of 71%.

What is the average humidity in July?

In Trevilians, the average relative humidity in July is 71%.

How much does it rain in Trevilians in July?

In July, the rain falls for 16.5 days. Throughout July, 2.36" (60mm) of precipitation is accumulated.

When it does not snow?

In Trevilians, snow does not fall in May through October.

How many hours of daylight does Trevilians have in July?

In Trevilians, the average day length in July is 14h and 30min.

When are sunrise and sunset in July?

On the first day of July, sunrise is at 5:53 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 8:22 pm EDT.

What month has the most sunshine?

July has the most sunshine of the year, with an average of 10.8h of sunshine.

How many hours of sunshine does Trevilians have in July?

In July, the average sunshine duration is 10.8h.

What is the month with the highest UV index?

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

How high is the UV index in July?

The average daily maximum UV index in July is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability 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
Trevilians, VA

Average temperature in July - Trevilians, VA
  • Average high temperature in July: 88.5°F

The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (42.3°F).

  • Average low temperature in July: 66.2°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).

Average pressure in July
Trevilians, VA

Average pressure in July - Trevilians, VA
  • Average pressure in July: 29.98"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in July
Trevilians, VA

Average wind speed in July - Trevilians, VA
  • Average wind speed in July: 4.5mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

Average humidity in July
Trevilians, VA

Average humidity in July - Trevilians, VA
  • Average humidity in July: 71%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (71%).

Average rainfall in July
Trevilians, VA

Average rainfall in July - Trevilians, VA
  • Average rainfall in July: 2.36"

The wettest month (with the highest rainfall) is April (2.99").
The driest month (with the least rainfall) is September (1.81").

Average rainfall days in July
Trevilians, VA

Average rainfall days in July - Trevilians, VA
  • Average rainfall days in July: 16.5 days

The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is November (8.9 days).

Average snowfall in July
Trevilians, VA

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

The month with the highest snowfall is January (2.91").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in July
Trevilians, VA

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

The month with the highest number of snowfall days is February (4.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

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

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 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 December (Average sunshine: 5h and 24min).

Average sunshine days in July
Trevilians, VA

Average sunshine days in July - Trevilians, VA
  • Average sunshine days in July: 12.4 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is May (12.1 days).

Average UV index in July
Trevilians, VA

Average UV index in July - Trevilians, VA
  • 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).

Average cloud cover in July
Trevilians, VA

Average cloud cover in July - Trevilians, VA
  • Average cloud cover in July: 30

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in July
Trevilians, VA

Average visibility in July - Trevilians, VA
  • Average visibility in July: 6mi

The months with the highest visibility are January, March, April, June, July, August, October and November (6mi).
The months with the lowest visibility are February, May, September and December (5mi).

Trevilians, Virginia, USA

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