August weather forecast
Denniston, KY

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Weather in August

The last month of the summer, August, is also a moderately hot month in Denniston, Kentucky, with an average temperature fluctuating between 62.8°F (17.1°C) and 85.5°F (29.7°C).

Temperature

As Denniston welcomes August, the average high-temperature is noted at a moderately hot 85.5°F (29.7°C), closely aligning with the preceding month. Throughout August, Denniston notes a dramatic plunge from the daily high to an average low-temperature of 62.8°F (17.1°C).

Heat index

Throughout August, the heat index is appraised at a torrid 95°F (35°C). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
In reference to the heat index, it's for places in shade and with a slight wind. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

The months with the lowest humidity in Denniston are June, August and November, with an average relative humidity of 75%.

Rainfall

In Denniston, in August, it is raining for 14.7 days, with typically 2.2" (56mm) of accumulated precipitation. Throughout the year, there are 162.2 rainfall days, and 29.45" (748mm) of precipitation is accumulated.

Snowfall

In Denniston, 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 6:38 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 8:04 pm EDT.

Sunshine

August has the most sunshine of the year, with an average of 10h 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 value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 6 during August translates into the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Updated: Jul 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August in Denniston?

In August, in Denniston, the average high-temperature is 85.5°F (29.7°C), and the average low-temperature is 62.8°F (17.1°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in August is appraised at 95°F (35°C).

What is the least humid month?

The months with the lowest humidity are June, August and November, with an average relative humidity of 75%.

What is the average humidity in August?

The average relative humidity in August is 75%.

How much does it rain in August?

In Denniston, during August, the rain falls for 14.7 days and regularly aggregates up to 2.2" (56mm) of precipitation.

When it does not snow?

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

How many hours of daylight does Denniston have in August?

In Denniston, Kentucky, 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 6:38 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 8:04 pm EDT.

What month has the most sunshine?

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

How many hours of sunshine does Denniston have in August?

The average sunshine duration in August is 10h.

What are the months with the highest UV index?

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

What is the UV index reading in August?

The average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to 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
Denniston, KY

Average temperature in August - Denniston, KY
  • Average high temperature in August: 85.5°F

The warmest month (with the highest average high temperature) is July (86.9°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
Denniston, KY

Average pressure in August - Denniston, KY
  • Average pressure in August: 30.01"Hg

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in August
Denniston, KY

Average wind speed in August - Denniston, KY
  • Average wind speed in August: 4.6mph

The windiest month (with the highest average wind speed) is January (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

Average humidity in August
Denniston, KY

Average humidity in August - Denniston, KY
  • Average humidity in August: 75%

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

Average rainfall in August
Denniston, KY

Average rainfall in August - Denniston, KY
  • Average rainfall in August: 2.2"

The wettest month (with the highest rainfall) is February (2.99").
The driest months (with the least rainfall) are September and November (1.89").

Average rainfall days in August
Denniston, KY

Average rainfall days in August - Denniston, KY
  • Average rainfall days in August: 14.7 days

The months with the highest number of rainy days are May and July (17.3 days).
The month with the least rainy days is November (9.7 days).

Average snowfall in August
Denniston, KY

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

The month with the highest snowfall is February (3.23").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Denniston, KY

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

The month with the highest number of snowfall days is January (10.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Denniston, 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 36min).

  • Average sunshine in August: 10h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in August
Denniston, KY

Average sunshine days in August - Denniston, KY
  • Average sunshine days in August: 14.1 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is February (10.3 days).

Average UV index in August
Denniston, KY

Average UV index in August - Denniston, KY
  • 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
Denniston, KY

Average cloud cover in August - Denniston, KY
  • Average cloud cover in August: 33

The months with the most cloud cover are January and February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in August
Denniston, KY

Average visibility in August - Denniston, KY
  • Average visibility in August: 5mi

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

Denniston, Kentucky, USA

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