August weather forecast
Greenville, KY

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Weather in August

August, the last month of the summer in Greenville, is also a moderately hot month, with an average temperature varying between 66.6°F (19.2°C) and 85.6°F (29.8°C).

Temperature

August's average high-temperature stands at a warm 85.6°F (29.8°C), showing little deviation from July's 86.5°F (30.3°C). The average low-temperature during August nights is an enjoyable 66.6°F (19.2°C).

Heat index

August's mean heat index is estimated at a torrid 96.8°F (36°C). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values remain especially vital for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

In Greenville, the average relative humidity in August is 76%.

Rainfall

In August, the rain falls for 15.2 days. Throughout August, 2.09" (53mm) of precipitation is accumulated. Throughout the year, there are 150.9 rainfall days, and 23.46" (596mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Greenville, the average length of the day in August is 13h and 33min.
On the first day of the month, sunrise is at 5:54 am and sunset at 7:55 pm. On the last day of August, sunrise is at 6:19 am and sunset at 7:18 pm CDT.

Sunshine

The average sunshine in August in Greenville is 10.5h.

UV index

May through 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 threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum high daily UV index of 6 during August translates into the following directions:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during August?

In August, in Greenville, the average high-temperature is 85.6°F (29.8°C), and the average low-temperature is 66.6°F (19.2°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, is estimated at 96.8°F (36°C).

What is the average humidity in August?

The average relative humidity in August in Greenville is 76%.

How many days does it rain in August?

In August, the rain falls for 15.2 days. Throughout August, 2.09" (53mm) of precipitation is accumulated.

When it does not snow?

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

How many hours of daylight does Greenville have in August?

In August, the average day length is 13h and 33min.

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 5:54 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 7:18 pm CDT.

How many hours of sunshine does Greenville have in August?

In August, the average sunshine duration is 10.5h.

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

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?

In Greenville, 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 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
Greenville, KY

Average temperature in August - Greenville, KY
  • Average high temperature in August: 85.6°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (41.2°F).

  • Average low temperature in August: 66.6°F

The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).

Average pressure in August
Greenville, KY

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in August
Greenville, KY

Average wind speed in August - Greenville, KY
  • Average wind speed in August: 5.3mph

The windiest month (with the highest average wind speed) is February (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

Average humidity in August
Greenville, KY

Average humidity in August - Greenville, KY
  • Average humidity in August: 76%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (72%).

Average rainfall in August
Greenville, KY

Average rainfall in August - Greenville, KY
  • Average rainfall in August: 2.09"

The wettest month (with the highest rainfall) is February (2.52").
The driest month (with the least rainfall) is September (1.26").

Average rainfall days in August
Greenville, KY

Average rainfall days in August - Greenville, KY
  • Average rainfall days in August: 15.2 days

The month with the highest number of rainy days is July (16.6 days).
The month with the least rainy days is November (8.7 days).

Average snowfall in August
Greenville, KY

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

The month with the highest snowfall is February (1.69").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Greenville, KY

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

The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Greenville, KY
  • Average daylight in August: 13h and 3min

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 42min).

  • Average sunshine in August: 10h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

Average sunshine days in August
Greenville, KY

Average sunshine days in August - Greenville, KY
  • Average sunshine days in August: 13.6 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in August
Greenville, KY

Average UV index in August - Greenville, 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
Greenville, KY

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

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 27).

Average visibility in August
Greenville, KY

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

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

Greenville, Kentucky, USA

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