July weather forecast
Sandston, VA

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Weather in July

July in Sandston, Virginia, is a hot summer month, with an average temperature varying between 90.3°F (32.4°C) and 69.8°F (21°C).

Temperature

In Sandston, July is the warmest month, with temperatures averaging a high of 90.3°F (32.4°C) and a low of 69.8°F (21°C).

Heat index

During July, the heat index is calculated to be an extremely hot 105.8°F (41°C). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
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. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

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

Rainfall

In Sandston, in July, during 13.3 rainfall days, 1.81" (46mm) of precipitation is typically accumulated. In Sandston, during the entire year, the rain falls for 133.2 days and collects up to 18.94" (481mm) of precipitation.

Snowfall

May through October are months without snowfall in Sandston.

Daylight

The average length of the day in July in Sandston, Virginia, is 14h and 27min.
On the first day of the month, sunrise is at 5:52 am and sunset at 8:34 pm. On the last day of July, sunrise is at 6:13 am and sunset at 8:18 pm EDT.

Sunshine

With an average of 10.5h of sunshine, July has the most sunshine of the year.

UV index

June and July, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: An average UV index of 7 in July transforms into this advice:
Fend off overexposure. Sun protection is vital. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight 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 is the hottest time of year in Sandston?

In Sandston, Virginia, the peak temperatures are generally noted in July, averaging a high of 90.3°F (32.4°C) and a low of 69.8°F (21°C).

How hot does it get in Sandston in July?

July temperatures in Sandston vary between a high-temperature of 90.3°F (32.4°C) and a low-temperature of 69.8°F (21°C). In July, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is calculated to be 105.8°F (41°C).

What is the least humid month in Sandston?

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

What is the average humidity in July in Sandston?

In Sandston, Virginia, the average relative humidity in July is 69%.

How much does it rain in Sandston in July?

In Sandston, in July, during 13.3 rainfall days, 1.81" (46mm) of precipitation is typically accumulated.

When it does not snow in Sandston?

May through October are months without snowfall in Sandston.

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

In July, the average day length in Sandston is 14h and 27min.

When are sunrise and sunset in July in Sandston?

On the first day of July in Sandston, Virginia, sunrise is at 5:52 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 8:18 pm EDT.

What month has the most sunshine in Sandston?

With an average of 10.5h of sunshine, July has the most sunshine of the year in Sandston, Virginia.

How long on average sun shines in July in Sandston?

In July, the average sunshine duration is 10.5h.

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

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

What is the UV index reading in July in Sandston?

The average daily maximum UV index in July in Sandston, Virginia, is 7. A UV Index value of 6 to 7 symbolizes a high health threat 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
Sandston, VA

Average temperature in July - Sandston, VA
  • Average high temperature in July: 90.3°F

The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (44.8°F).

  • Average low temperature in July: 69.8°F

The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).

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Average pressure in July
Sandston, VA

Average pressure in July - Sandston, VA
  • 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
Sandston, VA

Average wind speed in July - Sandston, VA
  • Average wind speed in July: 5.5mph

The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity in July
Sandston, VA

Average humidity in July - Sandston, VA
  • Average humidity in July: 69%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (69%).

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Average rainfall in July
Sandston, VA

Average rainfall in July - Sandston, VA
  • Average rainfall in July: 1.81"

The wettest month (with the highest rainfall) is August (2.05").
The driest month (with the least rainfall) is September (1.1").

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Average rainfall days in July
Sandston, VA

Average rainfall days in July - Sandston, VA
  • Average rainfall days in July: 13.3 days

The month with the highest number of rainy days is May (14.8 days).
The months with the least rainy days are October and November (8.2 days).

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Average snowfall in July
Sandston, VA

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

The month with the highest snowfall is March (0.67").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in July
Sandston, VA

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

The month with the highest number of snowfall days is February (2.4 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
Sandston, VA

Average daylight in July / Average sunshine in July - Sandston, 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 3min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 5h and 12min).

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Average sunshine days in July
Sandston, VA

Average sunshine days in July - Sandston, VA
  • Average sunshine days in July: 15.7 days

The months with the most sunshine days are October and December (21.4 days).
The month with the least sunshine days is May (14.4 days).

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Average UV index in July
Sandston, VA

Average UV index in July - Sandston, 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).

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Average cloud cover in July
Sandston, VA

Average cloud cover in July - Sandston, VA
  • Average cloud cover in July: 33

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 33).

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Average visibility in July
Sandston, VA

Average visibility in July - Sandston, VA
  • 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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Sandston, Virginia, USA

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