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
The average high-temperature in August in West Chester, at a still warm 82.4°F (28°C), reveals a modest deviation from July's 84.9°F (29.4°C). Nighttime temperatures in August average to an enjoyable 65.7°F (18.7°C) in West Chester.Heat index
August's mean heat index is estimated at a hot 87.8°F (31°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.Note that heat index values are valued for light wind and location in the shade. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold particular significance for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Humidity
In August, the average relative humidity is 75%.Rainfall
August is the month with the most rainfall in West Chester, Pennsylvania. Rain falls for 14.6 days and accumulates 2.01" (51mm) of precipitation.Snowfall
In West Chester, snow does not fall in June through October.Daylight
In August, the average length of the day is 13h and 42min.On the first day of August in West Chester, sunrise is at 6:01 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 7:35 pm EDT.
Sunshine
The average sunshine in August in West Chester, Pennsylvania, is 9.9h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In August, a daily UV index of 6 turns into the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Frequently asked questions
Is it hot in West Chester during August?
What is the average humidity in August in West Chester?
What is the wettest month in West Chester?
How much does it rain in West Chester in August?
When it does not snow in West Chester?
What is the average length of the day in August in West Chester?
When is the sunrise / sunset in August in West Chester?
How many hours of sunshine does West Chester have in August?
What is the month with the highest UV index in West Chester?
How high is the UV index in August in West Chester?
Average temperature in August
West Chester, PA
- Average high temperature in August: 82.4°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (36.5°F).
- Average low temperature in August: 65.7°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure in August
West Chester, PA
- Average pressure in August: 29.99"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in August
West Chester, PA
- Average wind speed in August: 5.3mph
The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in August
West Chester, PA
- Average humidity in August: 75%
The months with the highest relative humidity are February and October (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall in August
West Chester, PA
- Average rainfall in August: 2.01"
The wettest month (with the highest rainfall) is August (2.01").
The driest month (with the least rainfall) is January (0.83").
Average rainfall days in August
West Chester, PA
- Average rainfall days in August: 14.6 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is January (5.7 days).
Average snowfall in August
West Chester, PA
- Average snowfall in August: 0"
The month with the highest snowfall is March (1.54").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in August
West Chester, PA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (5.5 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
West Chester, PA
- Average daylight in August: 13h and 4min
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 5min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in August
West Chester, PA
- Average sunshine days in August: 13.1 days
The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is August (13.1 days).
Average UV index in August
West Chester, 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
West Chester, PA
- Average cloud cover in August: 34
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in August
West Chester, 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).
West Chester, Pennsylvania, USA
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