August weather forecast
Collinsville, VA

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Weather in August

August, the last month of the summer in Collinsville, is another tropical month, with an average temperature varying between 64.2°F (17.9°C) and 86.7°F (30.4°C).

Temperature

August's onset brings an average high-temperature of a still hot 86.7°F (30.4°C), showing a minute difference from July's 88.9°F (31.6°C). The month of August sees a significant daily temperature drop, recording an average low-temperature of 64.2°F (17.9°C) in Collinsville.

Heat index

For August, the heat index is computed to be a sweltering 98.6°F (37°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Consider that heat index readings are for situations in the shade and light wind. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. 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 particularly important for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

In August, the average relative humidity in Collinsville is 72%.

Rainfall

In August, in Collinsville, the rain falls for 13.7 days. Throughout August, 1.46" (37mm) of precipitation is accumulated. In Collinsville, during the entire year, the rain falls for 132.1 days and collects up to 19.96" (507mm) of precipitation.

Snowfall

In Collinsville, snow does not fall in April, June through October.

Daylight

In August, the average length of the day in Collinsville is 13h and 31min.
On the first day of August in Collinsville, sunrise is at 6:26 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 7:48 pm EDT.

Sunshine

In Collinsville, the average sunshine in August is 10.5h.

UV index

In August, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In August, the maximum UV index of 6 suggests this advice:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
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Frequently asked questions

How hot is it in Collinsville in August?

August temperatures vary between a high-temperature of 86.7°F (30.4°C) and a low-temperature of 64.2°F (17.9°C). The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is computed to be 98.6°F (37°C).

What is the average humidity in August in Collinsville?

The average relative humidity in August is 72%.

How many days does it rain in August in Collinsville?

In Collinsville, Virginia, during August, the rain falls for 13.7 days and regularly aggregates up to 1.46" (37mm) of precipitation.

When it does not snow in Collinsville?

April, June through October are months without snowfall.

How many hours of daylight does Collinsville have in August?

The average day length in August in Collinsville is 13h and 31min.

When is the sunrise / sunset in August in Collinsville?

On the first day of August in Collinsville, Virginia, sunrise is at 6:26 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 7:48 pm EDT.

How long on average sun shines in August in Collinsville?

In Collinsville, Virginia, the average sunshine duration in August is 10.5h.

What is the UV index intensity in August in Collinsville?

In August, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk 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 August
Collinsville, VA

Average temperature in August - Collinsville, VA
  • Average high temperature in August: 86.7°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (44.1°F).

  • Average low temperature in August: 64.2°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).

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Average pressure in August
Collinsville, VA

Average pressure in August - Collinsville, VA
  • Average pressure in August: 30.01"Hg

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in August
Collinsville, VA

Average wind speed in August - Collinsville, VA
  • Average wind speed in August: 4.2mph

The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

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Average humidity in August
Collinsville, VA

Average humidity in August - Collinsville, VA
  • Average humidity in August: 72%

The months with the highest relative humidity are May and December (76%).
The month with the lowest relative humidity is July (70%).

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Average rainfall in August
Collinsville, VA

Average rainfall in August - Collinsville, VA
  • Average rainfall in August: 1.46"

The wettest month (with the highest rainfall) is May (2.48").
The driest month (with the least rainfall) is September (1.14").

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Average rainfall days in August
Collinsville, VA

Average rainfall days in August - Collinsville, VA
  • Average rainfall days in August: 13.7 days

The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is November (7 days).

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Average snowfall in August
Collinsville, VA

Average snowfall in August - Collinsville, VA
  • Average snowfall in August: 0"

The month with the highest snowfall is December (2.05").
The months with the least snowfall are April, June, July, August, September and October (0").

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Average snowfall days in August
Collinsville, VA

Average snowfall days in August - Collinsville, VA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in August /
Average sunshine in August
Collinsville, VA

Average daylight in August / Average sunshine in August - Collinsville, VA
  • Average daylight in August: 13h and 3min

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 August: 10h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).

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Average sunshine days in August
Collinsville, VA

Average sunshine days in August - Collinsville, VA
  • Average sunshine days in August: 15.3 days

The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is July (14.2 days).

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Average UV index in August
Collinsville, VA

Average UV index in August - Collinsville, VA
  • Average UV index in August: 6

The month with the highest UV index is June (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 August
Collinsville, VA

Average cloud cover in August - Collinsville, VA
  • Average cloud cover in August: 32

The months with the most cloud cover are February and March (Cloud cover 41).
The month with the least cloud cover is June (Cloud cover 28).

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Average visibility in August
Collinsville, VA

Average visibility in August - Collinsville, VA
  • Average visibility in August: 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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Collinsville, Virginia, USA

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