August weather forecast
Rossmore, WV

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Weather in August

The last month of the summer, August, is another warm month in Rossmore, West Virginia, with an average temperature fluctuating between 84.7°F (29.3°C) and 60.6°F (15.9°C).

Temperature

Rossmore's weather in August, with an average high-temperature of a still moderately hot 84.7°F (29.3°C), subtly shifts from July's 85.8°F (29.9°C). August nights bring a pronounced temperature shift, with averages hovering around a mild 60.6°F (15.9°C).

Heat index

August's average heat index is computed to be a sweltering 95°F (35°C). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
Remember that heat index calculations are made for conditions in the shade with light wind. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

April, June through August and November, with an average relative humidity of 76%, are the least humid months.

Rainfall

In Rossmore, during August, the rain falls for 15.7 days and regularly aggregates up to 2.05" (52mm) of precipitation. In Rossmore, during the entire year, the rain falls for 181.3 days and collects up to 34.37" (873mm) of precipitation.

Snowfall

In Rossmore, West Virginia, snow does not fall in June through September.

Daylight

In Rossmore, the average length of the day in August is 13h and 35min.
On the first day of August, sunrise is at 6:32 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 7:58 pm EDT.

Sunshine

The month with the most sunshine is August, with an average of 10.2h of sunshine.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.
Note: The daily high UV index of 6 during August translates into the following recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Updated: Jul 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August?

In Rossmore, 84.7°F (29.3°C) is the average high-temperature and 60.6°F (15.9°C) is the average low-temperature during August. In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, is computed to be 95°F (35°C).

What is the least humid month?

The months with the lowest humidity are April, June through August and November, with an average relative humidity of 76%.

What is the average humidity in August?

In August, the average relative humidity is 76%.

How much does it rain in August?

In August, the rain falls for 15.7 days. Throughout August, 2.05" (52mm) of precipitation is accumulated.

When it does not snow?

June through September are months without snowfall.

What is the average length of the day in August?

The average day length in August is 13h and 35min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:32 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 7:58 pm EDT.

What month has the most sunshine?

August has the most sunshine of the year, with an average of 10.2h of sunshine.

How long on average sun shines in August?

In Rossmore, the average sunshine duration in August is 10.2h.

What are the months with the highest UV index?

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

What is the UV index reading in August?

In Rossmore, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health threat 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
Rossmore, WV

Average temperature in August - Rossmore, WV
  • Average high temperature in August: 84.7°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (39.7°F).

  • Average low temperature in August: 60.6°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

Average pressure in August
Rossmore, WV

Average pressure in August - Rossmore, WV
  • Average pressure in August: 30.02"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
Rossmore, WV

Average wind speed in August - Rossmore, WV
  • Average wind speed in August: 4mph

The windiest months (with the highest average wind speed) are January, February and April (6.5mph).
The calmest month (with the lowest average wind speed) is August (4mph).

Average humidity in August
Rossmore, WV

Average humidity in August - Rossmore, WV
  • Average humidity in August: 76%

The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are April, June, July, August and November (76%).

Average rainfall in August
Rossmore, WV

Average rainfall in August - Rossmore, WV
  • Average rainfall in August: 2.05"

The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in August
Rossmore, WV

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

The month with the highest number of rainy days is May (20.2 days).
The month with the least rainy days is November (10.8 days).

Average snowfall in August
Rossmore, WV

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

The month with the highest snowfall is January (4.53").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Rossmore, WV

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

The month with the highest number of snowfall days is January (11.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

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

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in August
Rossmore, WV

Average sunshine days in August - Rossmore, WV
  • Average sunshine days in August: 13.8 days

The months with the most sunshine days are October and November (17 days).
The month with the least sunshine days is February (8.8 days).

Average UV index in August
Rossmore, WV

Average UV index in August - Rossmore, 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 and December (UV index 2).

Average cloud cover in August
Rossmore, WV

Average cloud cover in August - Rossmore, WV
  • Average cloud cover in August: 33

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in August
Rossmore, WV

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

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

Rossmore, West Virginia, USA

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