August weather forecastCoatesville, PA
August
Weather in August
August graces Coatesville with a hot summer, experiencing a decrease in temperature from a peak of 83.5°F (28.6°C) in July to 81.1°F (27.3°C). The warmth of this month actively contributes to the nourishment of the city's flora. As a prelude to September, the notion of an ending summer establishes itself with mild decreases in temperature. Despite this, August carries the essence of summer with its striking sunshine and longer daylight hours. It leaves memorable experiences of hot sunny days and mild summer nights for the citizens of Coatesville.Temperature
As August takes hold, the average high-temperature is a still moderately hot 81.1°F (27.3°C), nearly mirroring that of the previous month. An average low-temperature of 64.2°F (17.9°C) marks the nights throughout August.Heat index
For most parts of August, the heat index is computed to be a tropical 86°F (30°C). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.Given the heat index, its values are aligned with shaded sites and gentle winds. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Humidity
In August, the average relative humidity is 79%.Rainfall
The month with the most rainfall is August, when the rain falls for 14.8 days and typically aggregates up to 2.72" (69mm) of precipitation.Snowfall
In Coatesville, snow does not fall in June through September.Daylight
The average length of the day in August in Coatesville is 13h and 42min.On the first day of the month, sunrise is at 6:02 am and sunset at 8:16 pm. On the last day of August, in Coatesville, sunrise is at 6:30 am and sunset at 7:35 pm EDT.
Sunshine
In August, the average sunshine is 9.8h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In August, the UV index of 6 transforms into the following advice:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Coatesville, PA
- Average high temperature in August: 81.1°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in August: 64.2°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in August
Coatesville, PA
- Average pressure in August: 29.99"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in August
Coatesville, PA
- Average wind speed in August: 5.2mph
The windiest months (with the highest average wind speed) are January, February and March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in August
Coatesville, PA
- Average humidity in August: 79%
The months with the highest relative humidity are May and October (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall in August
Coatesville, PA
- Average rainfall in August: 2.72"
The wettest month (with the highest rainfall) is August (2.72").
The driest month (with the least rainfall) is February (1.14").
Average rainfall days in August
Coatesville, PA
- Average rainfall days in August: 14.8 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (6.4 days).
Average snowfall in August
Coatesville, PA
- Average snowfall in August: 0"
The month with the highest snowfall is March (2.32").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Coatesville, PA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Coatesville, PA
- Average daylight in August: 13h and 42min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in August: 9h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in August
Coatesville, PA
- Average sunshine days in August: 13.2 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is July (12.4 days).
Average UV index in August
Coatesville, PA
- 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, March, November and December (UV index 2).
Average cloud cover in August
Coatesville, PA
- Average cloud cover in August: 35
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in August
Coatesville, PA
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).





