August weather forecast
Collinsville, VA

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Weather in August

The last month of the summer, August, is also a hot month in Collinsville, Virginia, with temperature in the range of an average high of 86.7°F (30.4°C) and an average low of 64.2°F (17.9°C).

Temperature

Collinsville, Virginia, experiences a recorded average high-temperature of a still tropical 86.7°F (30.4°C) in August, closely aligned with July's 88.9°F (31.6°C). During August, Collinsville perceives a consistent contrast from the daytime highs, with an average low-temperature of 64.2°F (17.9°C).

Heat index

August's mean heat index is calculated to be a torrid 98.6°F (37°C). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. 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 'felt air temperature' or 'apparent temperature', comes about by integrating the temperature readings with the humidity levels. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In August, the average relative humidity is 72%.

Rainfall

In August, 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

April, June through October are months without snowfall.

Daylight

In Collinsville, the average length of the day in August is 13h and 31min.
On the first day of the month, sunrise is at 6:26 am and sunset at 8:25 pm. On the last day of August, 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 Collinsville, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: In August, the maximum UV index of 6 suggests these recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.

Frequently asked questions

How hot is it in August?

The high-temperature in Collinsville during August is 86.7°F (30.4°C) and the low-temperature is 64.2°F (17.9°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is calculated 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 much does it rain in August?

In Collinsville, in August, during 13.7 rainfall days, 1.46" (37mm) of precipitation is typically accumulated.

When it does not snow in Collinsville?

April, June through October are months without snowfall.

What is the average length of the day in August?

In August, the average day length in Collinsville is 13h and 31min.

What time are sunrise and sunset in August?

On the first day of August, 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 August, the average sunshine duration in Collinsville, Virginia, is 10.5h.

What is the UV index intensity in August?

In August, the average daily maximum UV index in Collinsville is 6. 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 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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Collinsville, Virginia, USA

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