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
In Sidell, August's average high-temperature stands at a still warm 81.1°F (27.3°C), closely related to the preceding month. In the month of August, the average temperature dips to an enjoyable 64°F (17.8°C) during the night.Heat index
The heat index value during August is calculated to be a tropical 87.8°F (31°C). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for 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
In August, the average relative humidity in Sidell is 82%.Rainfall
In Sidell, Illinois, in August, during 12.4 rainfall days, 1.54" (39mm) of precipitation is typically accumulated. In Sidell, during the entire year, the rain falls for 133.4 days and collects up to 19.49" (495mm) of precipitation.Snowfall
In Sidell, Illinois, snow does not fall in May through October.Daylight
In August, the average length of the day in Sidell, Illinois, is 13h and 42min.On the first day of the month, sunrise is at 5:50 am and sunset at 8:04 pm. On the last day of August, in Sidell, sunrise is at 6:18 am and sunset at 7:23 pm CDT.
Sunshine
In August, the average sunshine in Sidell is 10.1h.UV index
In August, the average daily maximum UV index in Sidell is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: An average maximum UV index of 5 in August leads to these recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in August in Sidell?
What is the average humidity in August in Sidell?
How many days does it rain in August in Sidell?
When it does not snow in Sidell?
How many hours of daylight does Sidell have in August?
What time are sunrise and sunset in August in Sidell?
How many hours of sunshine does Sidell have in August?
How high is the UV index in August in Sidell?
Average temperature in August
Sidell, IL
- Average high temperature in August: 81.1°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (33.8°F).
- Average low temperature in August: 64°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 (21.7°F).
Average pressure in August
Sidell, IL
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Sidell, IL
- Average wind speed in August: 6.1mph
The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.1mph).
Average humidity in August
Sidell, IL
- Average humidity in August: 82%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Sidell, IL
- Average rainfall in August: 1.54"
The wettest month (with the highest rainfall) is April (2.76").
The driest month (with the least rainfall) is February (0.94").
Average rainfall days in August
Sidell, IL
- Average rainfall days in August: 12.4 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in August
Sidell, IL
- Average snowfall in August: 0"
The month with the highest snowfall is December (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Sidell, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (6.9 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
Sidell, 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 24min).
- Average sunshine in August: 10h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in August
Sidell, IL
- Average sunshine days in August: 14.9 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in August
Sidell, IL
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Sidell, IL
- Average cloud cover in August: 31
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are June, August and September (Cloud cover 31).
Average visibility in August
Sidell, IL
- Average visibility in August: 5mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Sidell, Illinois, USA
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