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 weather during August records an average high-temperature of a still moderately hot 80.6°F (27°C), closely mirroring the preceding month. During August, Silvis sees a mean low-temperature of 62.4°F (16.9°C).Heat index
Throughout August, the heat index is evaluated at a tropical 86°F (30°C). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.Note that heat index values are valued for light wind and location in the shade. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. 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 80%.Rainfall
In August, in Silvis, Illinois, the rain falls for 10.7 days. Throughout August, 0.71" (18mm) of precipitation is accumulated. Throughout the year, in Silvis, there are 99.4 rainfall days, and 9.57" (243mm) of precipitation is accumulated.Snowfall
May through August are months without snowfall.Daylight
In August, the average length of the day is 13h and 47min.On the first day of August in Silvis, sunrise is at 5:57 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 7:35 pm CDT.
Sunshine
In Silvis, the average sunshine in August is 9.9h.UV index
The average daily maximum UV index in August in Silvis is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: A daily high UV index of 5 in August leads to these guidelines:
Prioritize safety - Recommendations to avert sunburn are shared. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Frequently asked questions
What are the temperatures in Silvis in August?
What is the average humidity in August in Silvis?
How many days does it rain in August in Silvis?
When it does not snow in Silvis?
Does it snow in Silvis in August?
How many hours of daylight does Silvis have in August?
When is the sunrise / sunset in August in Silvis?
How many hours of sunshine does Silvis have in August?
What is the UV index intensity in August in Silvis?
Average temperature in August
Silvis, IL
- Average high temperature in August: 80.6°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in August: 62.4°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).
Average pressure in August
Silvis, IL
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Silvis, IL
- Average wind speed in August: 6.7mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in August
Silvis, IL
- Average humidity in August: 80%
The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Silvis, IL
- Average rainfall in August: 0.71"
The wettest month (with the highest rainfall) is May (1.61").
The driest month (with the least rainfall) is December (0.35").
Average rainfall days in August
Silvis, IL
- Average rainfall days in August: 10.7 days
The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is January (3.2 days).
Average snowfall in August
Silvis, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (1.26").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in August
Silvis, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Silvis, IL
- Average daylight in August: 13h and 5min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in August: 9h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in August
Silvis, IL
- Average sunshine days in August: 17.4 days
The month with the most sunshine days is December (22.4 days).
The month with the least sunshine days is June (14.4 days).
Average UV index in August
Silvis, IL
- Average UV index in August: 5
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in August
Silvis, IL
- Average cloud cover in August: 30
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in August
Silvis, 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).
Silvis, Illinois, USA
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