August weather forecast
Charles Town, WV

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Weather in August

In August, temperatures marginally plummet compared to July’s peaks, signalling the onset of the end of the summer season. Despite the slight dip, August continues to favour warm weather lovers. Frequent showers remain characteristic of this month. It's nearly indistinguishable from July in terms of daylight hours, but a slight variation in wind gust is observable.

Temperature

August's presence in Charles Town marks an average high-temperature of a warm 84°F (28.9°C), subtly varied from July's 86.5°F (30.3°C). In Charles Town, the average low-temperature during the month of August is a comfortable 63.1°F (17.3°C).

Heat index

The heat index in August is appraised at a tropical 91.4°F (33°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', quantifies the warmth felt when relative humidity is considered. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.

Humidity

In Charles Town, the average relative humidity in August is 75%.

Rainfall

The months with the most rainfall in Charles Town are May, July and August, with an average 3.15" (80mm) of precipitation.

Snowfall

In Charles Town, snow does not fall in June through October.

Daylight

The average length of the day in August is 13h and 40min.
On the first day of August in Charles Town, sunrise is at 6:12 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 7:43 pm EDT.

Sunshine

The average sunshine in August in Charles Town is 10.4h.

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 threat to health from exposure to the Sun's UV radiation for average individuals.
Note: An average UV index of 6 in August transforms into this advice:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
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Frequently asked questions

Is it hot in Charles Town during August?

The average high-temperature, in August, in Charles Town, is 84°F (28.9°C), while the average low-temperature is 63.1°F (17.3°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 appraised at 91.4°F (33°C).

What is the average humidity in August in Charles Town?

In August, the average relative humidity in Charles Town, West Virginia, is 75%.

What is the wettest month in Charles Town?

The months with the most rainfall in Charles Town are May, July and August, with an average 3.15" (80mm) of precipitation.

How much does it rain in Charles Town in August?

In Charles Town, West Virginia, in August, it is raining for 17.3 days, with typically 3.15" (80mm) of accumulated precipitation.

When it does not snow in Charles Town?

In Charles Town, snow does not fall in June through October.

How many hours of daylight does Charles Town have in August?

In August, the average day length is 13h and 40min.

When are sunrise and sunset in August in Charles Town?

On the first day of August in Charles Town, sunrise is at 6:12 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 7:43 pm EDT.

How long on average sun shines in August in Charles Town?

The average sunshine duration in August in Charles Town, West Virginia, is 10.4h.

What is the month with the highest UV index in Charles Town?

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

How high is the UV index in August in Charles Town?

The average daily maximum UV index in August in Charles Town, West Virginia, is 6. A UV Index of 6 to 7 symbolizes a high hazard to health 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
Charles Town, WV

Average temperature in August - Charles Town, WV
  • Average high temperature in August: 84°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in August: 63.1°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).

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Average pressure in August
Charles Town, WV

Average pressure in August - Charles Town, WV
  • Average pressure in August: 30"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 August
Charles Town, WV

Average wind speed in August - Charles Town, WV
  • Average wind speed in August: 4.3mph

The windiest month (with the highest average wind speed) is March (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

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Average humidity in August
Charles Town, WV

Average humidity in August - Charles Town, WV
  • Average humidity in August: 75%

The months with the highest relative humidity are May, October and December (78%).
The month with the lowest relative humidity is July (73%).

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Average rainfall in August
Charles Town, WV

Average rainfall in August - Charles Town, WV
  • Average rainfall in August: 3.15"

The wettest months (with the highest rainfall) are May, July and August (3.15").
The driest month (with the least rainfall) is September (1.89").

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Average rainfall days in August
Charles Town, WV

Average rainfall days in August - Charles Town, WV
  • Average rainfall days in August: 17.3 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (9.2 days).

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Average snowfall in August
Charles Town, WV

Average snowfall in August - Charles Town, WV
  • Average snowfall in August: 0"

The month with the highest snowfall is January (4.17").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in August
Charles Town, WV

Average snowfall days in August - Charles Town, WV
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (7.8 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
Charles Town, WV

Average daylight in August / Average sunshine in August - Charles Town, WV
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 6min).

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Average sunshine days in August
Charles Town, WV

Average sunshine days in August - Charles Town, WV
  • Average sunshine days in August: 12 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (11.2 days).

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Average UV index in August
Charles Town, WV

Average UV index in August - Charles Town, WV
  • Average UV index in August: 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).

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Average cloud cover in August
Charles Town, WV

Average cloud cover in August - Charles Town, WV
  • Average cloud cover in August: 32

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in August
Charles Town, WV

Average visibility in August - Charles Town, WV
  • Average visibility in August: 6mi

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

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Charles Town, West Virginia, USA

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