July weather forecast
South Boston, VA

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Weather in July

July, like June, is a hot summer month in South Boston, Virginia, with temperature in the range of an average high of 90.3°F (32.4°C) and an average low of 68.5°F (20.3°C).

Temperature

With average temperatures fluctuating between a high of 90.3°F (32.4°C) and a low of 68.5°F (20.3°C), July stands out as the warmest month.

Heat index

The heat index value during July is estimated at a blisteringly hot 105.8°F (41°C). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
The heat index's values are generally associated with conditions in shade and light breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', determines the feeling of heat when you account for the relative humidity. 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. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

With an average relative humidity of 69%, July is the least humid month in South Boston.

Rainfall

In July, the rain falls for 17.3 days. Throughout July, 2.2" (56mm) of precipitation is accumulated. Throughout the year, there are 157.9 rainfall days, and 29.57" (751mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in South Boston, Virginia.

Daylight

The average length of the day in July is 14h and 23min.
On the first day of July, sunrise is at 6:00 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 8:22 pm EDT.

Sunshine

In South Boston, the average sunshine in July is 10.6h.

UV index

July is the month with the highest UV index, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: A daily maximum UV index of 7 in July translates into the following instructions:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
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Frequently asked questions

What month is the hottest in South Boston?

The highest temperatures in South Boston, Virginia, are recorded in July, with averages reaching a high of 90.3°F (32.4°C) and a low of 68.5°F (20.3°C).

How hot does it get in South Boston in July?

The high-temperature in South Boston, Virginia, during July is 90.3°F (32.4°C) and the low-temperature is 68.5°F (20.3°C). In July, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, is estimated at 105.8°F (41°C).

What is the least humid month in South Boston?

With an average relative humidity of 69%, July is the least humid month in South Boston.

What is the average humidity in July in South Boston?

The average relative humidity in July in South Boston, Virginia, is 69%.

How many days does it rain in July in South Boston?

In South Boston, during July, the rain falls for 17.3 days and regularly aggregates up to 2.2" (56mm) of precipitation.

When it does not snow in South Boston?

In South Boston, Virginia, snow does not fall in May through October.

What is the average length of the day in July in South Boston?

In July, the average day length in South Boston, Virginia, is 14h and 23min.

What time are sunrise and sunset in July in South Boston?

In July, on the first day of the month, sunrise is at 6:00 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 8:22 pm EDT.

How many hours of sunshine does South Boston have in July?

The average sunshine duration in July in South Boston, Virginia, is 10.6h.

What is the month with the highest UV index in South Boston?

The month with the highest UV index in South Boston is July, with an average maximum UV index of 7.

How high is the UV index in July in South Boston?

In South Boston, Virginia, the average daily maximum UV index in July is 7. A UV Index reading of 6 to 7 represents 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
South Boston, VA

Average temperature in July - South Boston, 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 (45.5°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 (30.4°F).

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Average pressure in July
South Boston, VA

Average pressure in July - South Boston, VA
  • Average pressure in July: 29.99"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

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Average wind speed in July
South Boston, VA

Average wind speed in July - South Boston, VA
  • Average wind speed in July: 4.9mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity in July
South Boston, VA

Average humidity in July - South Boston, VA
  • Average humidity in July: 69%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (69%).

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Average rainfall in July
South Boston, VA

Average rainfall in July - South Boston, VA
  • Average rainfall in July: 2.2"

The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is September (1.77").

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Average rainfall days in July
South Boston, VA

Average rainfall days in July - South Boston, VA
  • Average rainfall days in July: 17.3 days

The months with the highest number of rainy days are May and July (17.3 days).
The month with the least rainy days is November (9.2 days).

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Average snowfall in July
South Boston, VA

Average snowfall in July - South Boston, VA
  • Average snowfall in July: 0"

The month with the highest snowfall is January (2.48").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in July
South Boston, VA

Average snowfall days in July - South Boston, VA
  • Average snowfall days in July: 0 days

The months with the highest number of snowfall days are January and February (3.1 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
South Boston, VA

Average daylight in July / Average sunshine in July - South Boston, VA
  • Average daylight in July: 14h and 2min

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

  • Average sunshine in July: 10h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

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Average sunshine days in July
South Boston, VA

Average sunshine days in July - South Boston, VA
  • Average sunshine days in July: 12 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is May (11.8 days).

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Average UV index in July
South Boston, VA

Average UV index in July - South Boston, VA
  • Average UV index in July: 7

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in July
South Boston, VA

Average cloud cover in July - South Boston, VA
  • Average cloud cover in July: 31

The month with the most cloud cover is March (Cloud cover 43).
The months with the least cloud cover are June and July (Cloud cover 31).

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Average visibility in July
South Boston, VA

Average visibility in July - South Boston, VA
  • Average visibility in July: 6mi

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

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South Boston, Virginia, USA

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