August weather forecast
Saint Charles, KY

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Weather in August

The last month of the summer, August, is also a moderately hot month in Saint Charles, Kentucky, with an average temperature varying between 66.7°F (19.3°C) and 85.5°F (29.7°C).

Temperature

Saint Charles records an average high-temperature of a warm 85.5°F (29.7°C) in August, maintaining a close correlation with July's 86.4°F (30.2°C). The average temperature during August nights is registered at a comfortable 66.7°F (19.3°C).

Heat index

The heat index value during August is computed to be a very hot 96.8°F (36°C). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. 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 are primarily vital for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

In August, the average relative humidity in Saint Charles, Kentucky, is 77%.

Rainfall

In Saint Charles, in August, during 12.6 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. In Saint Charles, during the entire year, the rain falls for 118.1 days and collects up to 12.28" (312mm) of precipitation.

Snowfall

April through October are months without snowfall in Saint Charles.

Daylight

In August, the average length of the day is 13h and 32min.
On the first day of the month, sunrise is at 5:55 am and sunset at 7:57 pm. On the last day of August, in Saint Charles, sunrise is at 6:20 am and sunset at 7:19 pm CDT.

Sunshine

In August, the average sunshine is 10.4h.

UV index

The months with the highest UV index in Saint Charles are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In August, the average maximum UV index of 6 translates into the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Saint Charles in August?

In Saint Charles, in August, the average high-temperature is 85.5°F (29.7°C), and the average low-temperature is 66.7°F (19.3°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is computed to be 96.8°F (36°C).

What is the average humidity in August in Saint Charles?

In August, the average relative humidity in Saint Charles, Kentucky, is 77%.

How many days does it rain in August in Saint Charles?

In Saint Charles, Kentucky, in August, it is raining for 12.6 days, with typically 1.22" (31mm) of accumulated precipitation.

When it does not snow in Saint Charles?

In Saint Charles, Kentucky, snow does not fall in April through October.

How many hours of daylight does Saint Charles have in August?

The average day length in August in Saint Charles is 13h and 32min.

When are sunrise and sunset in August in Saint Charles?

In August, on the first day of the month, sunrise is at 5:55 am and sunset at 7:57 pm. On the last day of the month, in Saint Charles, sunrise is at 6:20 am and sunset at 7:19 pm CDT.

How long on average sun shines in August in Saint Charles?

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

What are the months with the highest UV index in Saint Charles?

The months with the highest UV index in Saint Charles, Kentucky, are May through August, with an average maximum UV index of 6.

What is the UV index intensity in August in Saint Charles?

In Saint Charles, Kentucky, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health risk from 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
Saint Charles, KY

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

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (41.2°F).

  • Average low temperature in August: 66.7°F

The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (28°F).

Average pressure in August
Saint Charles, KY

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

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in August
Saint Charles, KY

Average wind speed in August - Saint Charles, KY
  • Average wind speed in August: 5.6mph

The windiest month (with the highest average wind speed) is February (9.4mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).

Average humidity in August
Saint Charles, KY

Average humidity in August - Saint Charles, KY
  • Average humidity in August: 77%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).

Average rainfall in August
Saint Charles, KY

Average rainfall in August - Saint Charles, KY
  • Average rainfall in August: 1.22"

The wettest month (with the highest rainfall) is April (1.34").
The driest month (with the least rainfall) is September (0.47").

Average rainfall days in August
Saint Charles, KY

Average rainfall days in August - Saint Charles, KY
  • Average rainfall days in August: 12.6 days

The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is January (6.9 days).

Average snowfall in August
Saint Charles, KY

Average snowfall in August - Saint Charles, KY
  • Average snowfall in August: 0"

The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
Saint Charles, KY

Average snowfall days in August - Saint Charles, KY
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (2.9 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
Saint Charles, KY

Average daylight in August / Average sunshine in August - Saint Charles, 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 2min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

Average sunshine days in August
Saint Charles, KY

Average sunshine days in August - Saint Charles, KY
  • Average sunshine days in August: 16.4 days

The month with the most sunshine days is October (21.7 days).
The month with the least sunshine days is May (14.1 days).

Average UV index in August
Saint Charles, KY

Average UV index in August - Saint Charles, 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
Saint Charles, KY

Average cloud cover in August - Saint Charles, 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
Saint Charles, KY

Average visibility in August - Saint Charles, 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).

Saint Charles, Kentucky, USA

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