August weather forecastSaint Charles, AR
August
Weather in August
The last month of the summer, August, is another tropical month in Saint Charles, Arkansas, with an average temperature fluctuating between 71.4°F (21.9°C) and 88.7°F (31.5°C).Temperature
The arrival of August is marked by an average high-temperature of a still tropical 88.7°F (31.5°C), bearing a close resemblance to July. August nights are marked by an average temperature drop to an agreeable 71.4°F (21.9°C).Heat index
August's heat index is estimated at a blisteringly hot 105.8°F (41°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.Heat index details are generally centered around shaded locations and a mild breeze. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.
Humidity
In Saint Charles, the average relative humidity in August is 75%.Rainfall
In Saint Charles, in August, it is raining for 17.8 days, with typically 3.5" (89mm) of accumulated precipitation. In Saint Charles, during the entire year, the rain falls for 163.1 days and collects up to 42.13" (1070mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in August is 13h and 24min.On the first day of the month, sunrise is at 6:15 am and sunset at 8:05 pm. On the last day of August, sunrise is at 6:37 am and sunset at 7:31 pm CDT.
Sunshine
The average sunshine in August is 10.4h.UV index
The average daily maximum UV index in August in Saint Charles is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In August, the maximum UV index of 6 translates into these guidelines:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Saint Charles, AR
- Average high temperature in August: 88.7°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (49.3°F).
- Average low temperature in August: 71.4°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (36°F).
Average pressure in August
Saint Charles, AR
- Average pressure in August: 29.96"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in August
Saint Charles, AR
- Average wind speed in August: 5.4mph
The windiest month (with the highest average wind speed) is February (9.5mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in August
Saint Charles, AR
- Average humidity in August: 75%
The months with the highest relative humidity are March and December (78%).
The month with the lowest relative humidity is October (67%).
Average rainfall in August
Saint Charles, AR
- Average rainfall in August: 3.5"
The wettest month (with the highest rainfall) is April (4.8").
The driest month (with the least rainfall) is September (2.28").
Average rainfall days in August
Saint Charles, AR
- Average rainfall days in August: 17.8 days
The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is October (9.5 days).
Average snowfall in August
Saint Charles, AR
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Saint Charles, AR
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are January and February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Saint Charles, AR
- Average daylight in August: 13h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in August: 10h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in August
Saint Charles, AR
- Average sunshine days in August: 10.3 days
The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is August (10.3 days).
Average UV index in August
Saint Charles, AR
- Average UV index in August: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in August
Saint Charles, AR
- Average cloud cover in August: 27
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 24).
Average visibility in August
Saint Charles, AR
- 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).
