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 advent of August presents an average high-temperature of a still warm 82.2°F (27.9°C), maintaining a close correlation with the preceding month. Throughout August, Ferris records an average temperature of 63.9°F (17.7°C) at night.Heat index
In August, the heat index is estimated at a tropical 89.6°F (32°C). Uninterrupted activity during exposure could lead to a sense of exhaustion, possibly causing heat cramps.The heat index's values are generally associated with conditions in shade and light breezes. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is an aggregate value of air's warmth and moisture to show the human-felt temperature. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Humidity
In August, the average relative humidity in Ferris is 79%.Rainfall
In Ferris, in August, it is raining for 12.2 days, with typically 1.69" (43mm) of accumulated precipitation. In Ferris, Illinois, during the entire year, the rain falls for 128.2 days and collects up to 20.08" (510mm) of precipitation.Snowfall
In Ferris, Illinois, snow does not fall in May through September.Daylight
In Ferris, the average length of the day in August is 13h and 44min.On the first day of August, sunrise is at 6:02 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 7:37 pm CDT.
Sunshine
The average sunshine in August in Ferris is 10h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index in Ferris. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 6 in August converts into the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Ferris in August?
What is the average humidity in August in Ferris?
How many days does it rain in August in Ferris?
When it does not snow in Ferris?
How many hours of daylight does Ferris have in August?
When are sunrise and sunset in August in Ferris?
How many hours of sunshine does Ferris have in August?
What are the months with the highest UV index in Ferris?
What is the UV index reading in August in Ferris?
Average temperature in August
Ferris, IL
- Average high temperature in August: 82.2°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (31.3°F).
- Average low temperature in August: 63.9°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).
Average pressure in August
Ferris, IL
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in August
Ferris, IL
- Average wind speed in August: 6.6mph
The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in August
Ferris, IL
- Average humidity in August: 79%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (70%).
Average rainfall in August
Ferris, IL
- Average rainfall in August: 1.69"
The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is January (0.79").
Average rainfall days in August
Ferris, IL
- Average rainfall days in August: 12.2 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (4.6 days).
Average snowfall in August
Ferris, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (2.48").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Ferris, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (8.2 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
Ferris, IL
- 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 18min).
- Average sunshine in August: 10h and 0min
The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in August
Ferris, IL
- Average sunshine days in August: 17.2 days
The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is June (11.6 days).
Average UV index in August
Ferris, IL
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in August
Ferris, IL
- Average cloud cover in August: 29
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July, August and September (Cloud cover 29).
Average visibility in August
Ferris, 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).
Ferris, Illinois, USA
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