August weather forecast
Grafton, WV

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Weather in August

August continues the trend of high summer temperatures, though slightly less than in July. Despite occasional rains, August's weather is characterized by temperatures hovering from 58.3°F (14.6°C) to 81.5°F (27.5°C). This month proves particularly sunny, making sunscreen a must for residents and tourists. Compared to July, there is a minimal decrease in daylight hours, though this is hardly noticeable.

Temperature

August brings a marginal elevation to a still warm 81.5°F (27.5°C) from July's 82°F (27.8°C) in Grafton's average high-temperatures. Despite a significant deviation from daily highs, August sees an average nighttime temperature of 58.3°F (14.6°C) in Grafton.

Heat index

August's heat index is evaluated at a hot 87.8°F (31°C). Persistent activity under exposure might lead to a feeling of weariness, with subsequent heat cramps.
Be advised, the heat index considers values for conditions in shade and with a light breeze. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', combines both the air temperature and the humidity level to give a perceived human temperature. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.

Humidity

The months with the lowest humidity in Grafton are July and August, with an average relative humidity of 77%.

Rainfall

In Grafton, in August, during 15.7 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. In Grafton, during the entire year, the rain falls for 184.5 days and collects up to 35.35" (898mm) of precipitation.

Snowfall

In Grafton, snow does not fall in June through September.

Daylight

In August, the average length of the day in Grafton is 13h and 40min.
On the first day of August in Grafton, sunrise is at 6:20 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 7:52 pm EDT.

Sunshine

The month with the most sunshine in Grafton is August, with an average of 10.1h of sunshine.

UV index

The average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index of 5 during August translates into these guidelines:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
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Frequently asked questions

What is the usual temperature for Grafton in August?

Grafton in August has an average high-temperature of 81.5°F (27.5°C) and an average low-temperature of 58.3°F (14.6°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 87.8°F (31°C).

What are the least humid months in Grafton?

The months with the lowest humidity are July and August, with an average relative humidity of 77%.

What is the average humidity in August in Grafton?

The average relative humidity in August in Grafton, West Virginia, is 77%.

How many days does it rain in August in Grafton?

In Grafton, West Virginia, in August, during 15.7 rainfall days, 2.32" (59mm) of precipitation is typically accumulated.

When it does not snow in Grafton?

June through September are months without snowfall.

What is the average length of the day in August in Grafton?

In August, the average day length in Grafton, West Virginia, is 13h and 40min.

What time are sunrise and sunset in August in Grafton?

In August, on the first day of the month, sunrise is at 6:20 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 7:52 pm EDT.

What month has the most sunshine in Grafton?

August has the most sunshine of the year in Grafton, with an average of 10.1h of sunshine.

How many hours of sunshine does Grafton have in August?

The average sunshine duration in August is 10.1h.

How high is the UV index in August in Grafton?

In Grafton, West Virginia, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from 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
Grafton, WV

Average temperature in August - Grafton, WV
  • Average high temperature in August: 81.5°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in August: 58.3°F

The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).

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Average pressure in August
Grafton, WV

Average pressure in August - Grafton, WV
  • Average pressure in August: 30.01"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

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Average wind speed in August
Grafton, WV

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

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

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Average humidity in August
Grafton, WV

Average humidity in August - Grafton, WV
  • Average humidity in August: 77%

The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are July and August (77%).

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Average rainfall in August
Grafton, WV

Average rainfall in August - Grafton, WV
  • Average rainfall in August: 2.32"

The wettest month (with the highest rainfall) is May (4.06").
The driest month (with the least rainfall) is September (1.89").

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Average rainfall days in August
Grafton, WV

Average rainfall days in August - Grafton, WV
  • Average rainfall days in August: 15.7 days

The month with the highest number of rainy days is May (20.8 days).
The month with the least rainy days is February (11.9 days).

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Average snowfall in August
Grafton, WV

Average snowfall in August - Grafton, WV
  • Average snowfall in August: 0"

The month with the highest snowfall is January (7.87").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Grafton, WV

Average snowfall days in August - Grafton, WV
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Grafton, WV

Average daylight in August / Average sunshine in August - Grafton, 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 1min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

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Average sunshine days in August
Grafton, WV

Average sunshine days in August - Grafton, WV
  • Average sunshine days in August: 13 days

The month with the most sunshine days is October (13.7 days).
The month with the least sunshine days is January (6.5 days).

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Average UV index in August
Grafton, WV

Average UV index in August - Grafton, WV
  • Average UV index in August: 5

The month with the highest UV index is July (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
Grafton, WV

Average cloud cover in August - Grafton, WV
  • Average cloud cover in August: 35

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 35).

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Average visibility in August
Grafton, WV

Average visibility in August - Grafton, WV
  • Average visibility in August: 5mi

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).

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Grafton, West Virginia, USA

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