August weather forecast
Johnsville, KY

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Weather in August

The last month of the summer, August, is another warm month in Johnsville, Kentucky, with temperature in the range of an average high of 84.4°F (29.1°C) and an average low of 64°F (17.8°C).

Temperature

The start of August sees the average high-temperature at a still moderately hot 84.4°F (29.1°C), showing little difference from July's 85.3°F (29.6°C). During August, Johnsville sees a mean low-temperature of 64°F (17.8°C).

Heat index

The heat index value during August is estimated at a tropical 93.2°F (34°C). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. 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 especially crucial 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

With an average relative humidity of 74%, August is the least humid month in Johnsville, Kentucky.

Rainfall

In Johnsville, in August, during 14.3 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. In Johnsville, during the entire year, the rain falls for 156.2 days and collects up to 26.1" (663mm) of precipitation.

Snowfall

In Johnsville, snow does not fall in May through October.

Daylight

In Johnsville, the average length of the day in August is 13h and 38min.
On the first day of August, sunrise is at 6:38 am and sunset at 8:47 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 8:07 pm EDT.

Sunshine

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

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily high UV index of 6 in August translates into this advice:
Stay clear of intense sun exposure. Solar protection is of utmost significance. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
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Frequently asked questions

Is it hot in Johnsville during August?

August temperatures in Johnsville vary between a high-temperature of 84.4°F (29.1°C) and a low-temperature of 64°F (17.8°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is estimated at 93.2°F (34°C).

What is the least humid month in Johnsville?

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

What is the average humidity in August in Johnsville?

In Johnsville, Kentucky, the average relative humidity in August is 74%.

How many days does it rain in August in Johnsville?

In Johnsville, in August, during 14.3 rainfall days, 2.01" (51mm) of precipitation is typically accumulated.

When it does not snow in Johnsville?

May through October are months without snowfall in Johnsville.

How many hours of daylight does Johnsville have in August?

In Johnsville, Kentucky, the average day length in August is 13h and 38min.

When is the sunrise / sunset in August in Johnsville?

On the first day of August in Johnsville, sunrise is at 6:38 am and sunset at 8:47 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 8:07 pm EDT.

What month has the most sunshine in Johnsville?

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

How many hours of sunshine does Johnsville have in August?

The average sunshine duration in August in Johnsville, Kentucky, is 10.2h.

What is the month with the highest UV index in Johnsville?

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

What is the UV index intensity in August in Johnsville?

In August, the average daily maximum UV index in Johnsville, Kentucky, is 6. A UV Index reading of 6 to 7 represents 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
Johnsville, KY

Average temperature in August - Johnsville, KY
  • Average high temperature in August: 84.4°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in August: 64°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).

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Average pressure in August
Johnsville, KY

Average pressure in August - Johnsville, KY
  • Average pressure in August: 29.99"Hg

The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in August
Johnsville, KY

Average wind speed in August - Johnsville, KY
  • Average wind speed in August: 5mph

The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).

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Average humidity in August
Johnsville, KY

Average humidity in August - Johnsville, KY
  • Average humidity in August: 74%

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

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Average rainfall in August
Johnsville, KY

Average rainfall in August - Johnsville, KY
  • Average rainfall in August: 2.01"

The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is September (1.61").

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Average rainfall days in August
Johnsville, KY

Average rainfall days in August - Johnsville, KY
  • Average rainfall days in August: 14.3 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is November (9.8 days).

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Average snowfall in August
Johnsville, KY

Average snowfall in August - Johnsville, KY
  • Average snowfall in August: 0"

The month with the highest snowfall is January (1.89").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Johnsville, KY

Average snowfall days in August - Johnsville, KY
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Johnsville, KY

Average daylight in August / Average sunshine in August - Johnsville, KY
  • 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 30min).

  • 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: 4h and 6min).

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Average sunshine days in August
Johnsville, KY

Average sunshine days in August - Johnsville, KY
  • Average sunshine days in August: 13.9 days

The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is May (10.8 days).

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Average UV index in August
Johnsville, KY

Average UV index in August - Johnsville, KY
  • Average UV index in August: 6

The months with the highest UV index are June, July and August (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
Johnsville, KY

Average cloud cover in August - Johnsville, KY
  • Average cloud cover in August: 28

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in August
Johnsville, KY

Average visibility in August - Johnsville, KY
  • Average visibility in August: 6mi

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

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Johnsville, Kentucky, USA

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