August weather forecast
Jaco, WV

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Weather in August

The last month of the summer, August, is another warm month in Jaco, West Virginia, with an average temperature ranging between min 58.6°F (14.8°C) and max 81.5°F (27.5°C).

Temperature

August's arrival registers an average high-temperature of a still warm 81.5°F (27.5°C), closely aligning with the temperature of the previous month. Against the backdrop of high daytime temperatures, an average low-temperature of 58.6°F (14.8°C) is noted during August nights in Jaco, West Virginia.

Heat index

The heat index for August is estimated at a tropical 87.8°F (31°C). A sense of exhaustion might occur with extended exposure and activity, potentially causing heat cramps.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.

Humidity

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

Rainfall

In Jaco, in August, during 17.3 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. Throughout the year, there are 187.8 rainfall days, and 36.46" (926mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In August, the average length of the day is 13h and 41min.
On the first day of the month, sunrise is at 6:19 am and sunset at 8:32 pm. On the last day of August, in Jaco, sunrise is at 6:47 am and sunset at 7:51 pm EDT.

Sunshine

With an average of 10h of sunshine, August has the most sunshine of the year.

UV index

In August, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: The UV index of 5 during August translates into the following guidance:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Jaco in August?

August temperatures in Jaco vary between a high-temperature of 81.5°F (27.5°C) and a low-temperature of 58.6°F (14.8°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in August is estimated at 87.8°F (31°C).

What are the least humid months in Jaco?

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 Jaco?

The average relative humidity in August in Jaco is 77%.

How many days does it rain in August in Jaco?

In Jaco, West Virginia, during August, the rain falls for 17.3 days and regularly aggregates up to 2.56" (65mm) of precipitation.

When it does not snow in Jaco?

June through September are months without snowfall in Jaco.

How many hours of daylight does Jaco have in August?

In Jaco, West Virginia, the average day length in August is 13h and 41min.

When is the sunrise / sunset in August in Jaco?

In August, on the first day of the month, sunrise is at 6:19 am and sunset at 8:32 pm. On the last day of the month, in Jaco, sunrise is at 6:47 am and sunset at 7:51 pm EDT.

What month has the most sunshine in Jaco?

August has the most sunshine of the year in Jaco, West Virginia, with an average of 10h of sunshine.

How many hours of sunshine does Jaco have in August?

In August, the average sunshine duration in Jaco is 10h.

What is the UV index intensity in August in Jaco?

In Jaco, West Virginia, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average max. wind speed
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
Jaco, WV

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

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (34.5°F).

  • Average low temperature in August: 58.6°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in August
Jaco, WV

Average pressure in August - Jaco, 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).

Average wind speed in August
Jaco, WV

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

The windiest month (with the highest average wind speed) is January (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

Average humidity in August
Jaco, WV

Average humidity in August - Jaco, 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%).

Average rainfall in August
Jaco, WV

Average rainfall in August - Jaco, WV
  • Average rainfall in August: 2.56"

The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is September (2.17").

Average rainfall days in August
Jaco, WV

Average rainfall days in August - Jaco, WV
  • Average rainfall days in August: 17.3 days

The month with the highest number of rainy days is May (20.5 days).
The month with the least rainy days is January (11.1 days).

Average snowfall in August
Jaco, WV

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

The month with the highest snowfall is February (7.76").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Jaco, WV

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

The month with the highest number of snowfall days is January (17 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Jaco, 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 24min).

  • Average sunshine in August: 10h

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

Average sunshine days in August
Jaco, WV

Average sunshine days in August - Jaco, WV
  • Average sunshine days in August: 12 days

The month with the most sunshine days is November (13.5 days).
The month with the least sunshine days is January (6.7 days).

Average UV index in August
Jaco, WV

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

The months with the highest UV index are May, June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in August
Jaco, WV

Average cloud cover in August - Jaco, 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).

Average visibility in August
Jaco, WV

Average visibility in August - Jaco, 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).

Jaco, West Virginia, USA

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