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 denotes a minimal variation in the average high-temperature to a warm 85.6°F (29.8°C) from July's 87.3°F (30.7°C). In August, Percy experiences an average nighttime temperature of 65.8°F (18.8°C).Heat index
In August, the average heat index is evaluated at a fiery hot 96.8°F (36°C). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', comes about by integrating the temperature readings with the humidity levels. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.
Humidity
In August, the average relative humidity is 77%.Rainfall
In Percy, in August, it is raining for 14.5 days, with typically 3.31" (84mm) of accumulated precipitation. Throughout the year, in Percy, there are 159.4 rainfall days, and 37.2" (945mm) of precipitation is accumulated.Snowfall
In Percy, snow does not fall in May through September.Daylight
In August, the average length of the day in Percy, Illinois, is 13h and 35min.On the first day of August in Percy, sunrise is at 6:02 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 7:29 pm CDT.
Sunshine
The average sunshine in August in Percy is 10h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The UV index of 6 during August leads to these advisories:
Resist extreme sun exposure. Guarding against solar damage is essential. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Percy in August?
What is the average humidity in August in Percy?
How much does it rain in Percy in August?
When it does not snow in Percy?
How many hours of daylight does Percy have in August?
When is the sunrise / sunset in August in Percy?
How many hours of sunshine does Percy have in August?
What are the months with the highest UV index in Percy?
How high is the UV index in August in Percy?
Average temperature in August
Percy, IL
- Average high temperature in August: 85.6°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in August: 65.8°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in August
Percy, IL
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Percy, IL
- Average wind speed in August: 5.7mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in August
Percy, IL
- Average humidity in August: 77%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Percy, IL
- Average rainfall in August: 3.31"
The wettest month (with the highest rainfall) is May (4.49").
The driest months (with the least rainfall) are February and September (2.13").
Average rainfall days in August
Percy, IL
- Average rainfall days in August: 14.5 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in August
Percy, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (2.64").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Percy, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (7.1 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
Percy, IL
- Average daylight in August: 13h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in August: 10h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in August
Percy, IL
- Average sunshine days in August: 12.9 days
The month with the most sunshine days is December (18.2 days).
The month with the least sunshine days is May (10.4 days).
Average UV index in August
Percy, IL
- Average UV index in August: 6
The months with the highest UV index are 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
Percy, IL
- Average cloud cover in August: 29
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in August
Percy, IL
- 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).
Percy, Illinois, USA
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