August weather forecast
Selwyn, WV

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Weather in August

August, the last month of the summer in Selwyn, is another warm month, with an average temperature fluctuating between 61°F (16.1°C) and 84.4°F (29.1°C).

Temperature

Selwyn's average high-temperature in August is a warm 84.4°F (29.1°C), marking an insignificant difference from the 86°F (30°C) of July. Selwyn documents a striking divergence from daytime highs, with an average nighttime temperature of 61°F (16.1°C) in August.

Heat index

During August, the heat index is estimated at a tropical 93.2°F (34°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Heat index specifics point out values are for conditions of shade and a slight breeze. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', melds the effects of warmth and moisture to generate a feeling of heat. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.

Humidity

July, August and November, with an average relative humidity of 75%, are the least humid months.

Rainfall

In Selwyn, West Virginia, in August, during 13.3 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. Throughout the year, there are 163.6 rainfall days, and 30.43" (773mm) of precipitation is accumulated.

Snowfall

In Selwyn, snow does not fall in June 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 7:59 pm EDT.

Sunshine

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

UV index

June and August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 6 during August translates into the following recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. 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. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.

Frequently asked questions

How hot is August?

The average high-temperature and low-temperature in Selwyn during August are 84.4°F (29.1°C) and 61°F (16.1°C) respectively. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, in August is estimated at 93.2°F (34°C).

What are the least humid months in Selwyn?

July, August and November, with an average relative humidity of 75%, are the least humid months.

What is the average humidity in August?

The average relative humidity in August is 75%.

How many days does it rain in August?

In Selwyn, in August, during 13.3 rainfall days, 1.93" (49mm) of precipitation is typically accumulated.

When it does not snow?

June through September are months without snowfall.

How many hours of daylight does Selwyn have in August?

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

What time are sunrise and 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 7:59 pm EDT.

What month has the most sunshine in Selwyn?

The month with the most sunshine in Selwyn, West Virginia, is August, with an average of 10.4h of sunshine.

How long on average sun shines in August?

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

What are the months with the highest UV index?

June and August, with an average maximum UV index of 6, are months with the highest UV index.

How high is the UV index in August?

The average daily maximum UV index in August is 6. A UV Index value 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
Selwyn, WV

Average temperature in August - Selwyn, WV
  • Average high temperature in August: 84.4°F

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (40.1°F).

  • Average low temperature in August: 61°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).

Average pressure in August
Selwyn, WV

Average pressure in August - Selwyn, 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
Selwyn, WV

Average wind speed in August - Selwyn, WV
  • Average wind speed in August: 3.9mph

The windiest month (with the highest average wind speed) is April (6.4mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

Average humidity in August
Selwyn, WV

Average humidity in August - Selwyn, WV
  • Average humidity in August: 75%

The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are July, August and November (75%).

Average rainfall in August
Selwyn, WV

Average rainfall in August - Selwyn, WV
  • Average rainfall in August: 1.93"

The wettest months (with the highest rainfall) are February and May (3.27").
The driest month (with the least rainfall) is September (1.46").

Average rainfall days in August
Selwyn, WV

Average rainfall days in August - Selwyn, WV
  • Average rainfall days in August: 13.3 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is November (10.1 days).

Average snowfall in August
Selwyn, WV

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

The month with the highest snowfall is February (4.09").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Selwyn, WV

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

The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Selwyn, 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 2min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in August
Selwyn, WV

Average sunshine days in August - Selwyn, WV
  • Average sunshine days in August: 15.2 days

The month with the most sunshine days is October (17.7 days).
The month with the least sunshine days is May (10.5 days).

Average UV index in August
Selwyn, WV

Average UV index in August - Selwyn, WV
  • Average UV index in August: 6

The months with the highest UV index are June 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
Selwyn, WV

Average cloud cover in August - Selwyn, 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
Selwyn, WV

Average visibility in August - Selwyn, 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).

Selwyn, West Virginia, USA

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