Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
August's arrival brings an average high-temperature of a still warm 83.5°F (28.6°C), demonstrating subtle variation from the preceding month. During August, Saint Charles notes a substantial drop from the daytime peak to an average minimum temperature of 60.4°F (15.8°C).Heat index
The heat index in August is calculated to be a tropical 91.4°F (33°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.Remember that heat index calculations are made for conditions in the shade with light wind. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', determines the feeling of heat when you account for the relative humidity. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Humidity
August and November, with an average relative humidity of 76%, are the least humid months.Rainfall
In Saint Charles, during August, the rain falls for 16.8 days and regularly aggregates up to 2.48" (63mm) of precipitation. In Saint Charles, during the entire year, the rain falls for 176.3 days and collects up to 32.87" (835mm) of precipitation.Snowfall
May through September are months without snowfall in Saint Charles.Daylight
In Saint Charles, the average length of the day in August is 13h and 31min.On the first day of August in Saint Charles, sunrise is at 6:38 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 8:01 pm EDT.
Sunshine
In August, the average sunshine is 10h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index in Saint Charles. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 6 during August leads to these instructions:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Saint Charles in August?
What are the least humid months in Saint Charles?
What is the average humidity in August in Saint Charles?
How many days does it rain in August in Saint Charles?
When it does not snow in Saint Charles?
What is the average length of the day in August in Saint Charles?
When is the sunrise / sunset in August in Saint Charles?
How long on average sun shines in August in Saint Charles?
What is the month with the highest UV index in Saint Charles?
What is the UV index reading in August in Saint Charles?
Average temperature in August
Saint Charles, VA
- Average high temperature in August: 83.5°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (41°F).
- Average low temperature in August: 60.4°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure in August
Saint Charles, VA
- Average pressure in August: 30.02"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in August
Saint Charles, VA
- Average wind speed in August: 3.7mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in August
Saint Charles, VA
- Average humidity in August: 76%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are August and November (76%).
Average rainfall in August
Saint Charles, VA
- Average rainfall in August: 2.48"
The wettest month (with the highest rainfall) is February (3.78").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in August
Saint Charles, VA
- Average rainfall days in August: 16.8 days
The month with the highest number of rainy days is July (19.1 days).
The month with the least rainy days is November (10.5 days).
Average snowfall in August
Saint Charles, VA
- Average snowfall in August: 0"
The month with the highest snowfall is February (3.27").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Saint Charles, VA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Saint Charles, VA
- Average daylight in August: 13h and 3min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in August: 10h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in August
Saint Charles, VA
- Average sunshine days in August: 12.5 days
The month with the most sunshine days is October (17.6 days).
The month with the least sunshine days is May (10 days).
Average UV index in August
Saint Charles, VA
- 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, November and December (UV index 2).
Average cloud cover in August
Saint Charles, VA
- Average cloud cover in August: 33
The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in August
Saint Charles, VA
- Average visibility in August: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Saint Charles, Virginia, USA
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