August weather forecast
Radnor, WV

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Weather in August

The last month of the summer, August, is also a moderately hot month in Radnor, West Virginia, with an average temperature varying between 85.6°F (29.8°C) and 62.8°F (17.1°C).

Temperature

Radnor in August witnesses an average high-temperature of a warm 85.6°F (29.8°C), indicating a slight variation from July's 87.1°F (30.6°C). The nighttime temperature shows a significant divergence from the daytime highs, averaging at a refreshing 62.8°F (17.1°C) in August.

Heat index

August's heat index is evaluated at a very hot 96.8°F (36°C). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', evaluates the perceived heat by adding the effect of moisture in the air. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

August is the least humid month, with an average relative humidity of 74%.

Rainfall

In Radnor, in August, it is raining for 16.3 days, with typically 2.48" (63mm) of accumulated precipitation. In Radnor, during the entire year, the rain falls for 176.7 days and collects up to 33.82" (859mm) of precipitation.

Snowfall

In Radnor, snow does not fall in May through September.

Daylight

The average length of the day in August is 13h and 35min.
On the first day of August, sunrise is at 6:33 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 8:00 pm EDT.

Sunshine

August has the most sunshine of the year, with an average of 10.4h 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 of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: An average maximum UV index of 6 in August leads to these recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Updated: Jun 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot in Radnor during August?

Radnor in August has an average high-temperature of 85.6°F (29.8°C) and an average low-temperature of 62.8°F (17.1°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is evaluated at 96.8°F (36°C).

What is the least humid month?

August is the least humid month, with an average relative humidity of 74%.

What is the average humidity in August?

The average relative humidity in August is 74%.

How much does it rain in Radnor in August?

In Radnor, during August, the rain falls for 16.3 days and regularly aggregates up to 2.48" (63mm) of precipitation.

When it does not snow?

May through September are months without snowfall.

What is the average length of the day in August?

In August, the average day length is 13h and 35min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 6:33 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 8:00 pm EDT.

What month has the most sunshine?

August has the most sunshine of the year, with an average of 10.4h of sunshine.

How many hours of sunshine does Radnor have in August?

In Radnor, the average sunshine duration in August is 10.4h.

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?

The average daily maximum UV index in August in Radnor is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability 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
Radnor, WV

Average temperature in August - Radnor, WV
  • Average high temperature in August: 85.6°F

The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (39.7°F).

  • Average low temperature in August: 62.8°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 (26.1°F).

Average pressure in August
Radnor, WV

Average pressure in August - Radnor, WV
  • 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
Radnor, WV

Average wind speed in August - Radnor, WV
  • Average wind speed in August: 4.2mph

The windiest months (with the highest average wind speed) are January, February and April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in August
Radnor, WV

Average humidity in August - Radnor, WV
  • Average humidity in August: 74%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is August (74%).

Average rainfall in August
Radnor, WV

Average rainfall in August - Radnor, WV
  • Average rainfall in August: 2.48"

The wettest month (with the highest rainfall) is April (3.43").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days in August
Radnor, WV

Average rainfall days in August - Radnor, WV
  • Average rainfall days in August: 16.3 days

The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is November (10.6 days).

Average snowfall in August
Radnor, WV

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

The month with the highest snowfall is February (3.58").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Radnor, WV

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

The month with the highest number of snowfall days is January (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in August
Radnor, WV

Average sunshine days in August - Radnor, WV
  • Average sunshine days in August: 12.5 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is May (9.7 days).

Average UV index in August
Radnor, WV

Average UV index in August - Radnor, 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
Radnor, WV

Average cloud cover in August - Radnor, WV
  • Average cloud cover in August: 31

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in August
Radnor, WV

Average visibility in August - Radnor, WV
  • Average visibility in August: 6mi

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

Radnor, West Virginia, USA

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