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 arrival of August records an average high-temperature of a still warm 79.3°F (26.3°C), closely related to the 80.4°F (26.9°C) observed in July. Lyons experiences a nighttime temperature average of 66.7°F (19.3°C) during August.Humidity
In August, the average relative humidity in Lyons is 75%.Rainfall
In Lyons, in August, it is raining for 9.5 days, with typically 0.63" (16mm) of accumulated precipitation. Throughout the year, there are 92 rainfall days, and 7.4" (188mm) of precipitation is accumulated.Snowfall
In Lyons, snow does not fall in May through September.Daylight
In August, the average length of the day in Lyons is 13h and 49min.On the first day of August, sunrise is at 5:46 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 7:25 pm CDT.
Sunshine
August has the most sunshine of the year in Lyons, with an average of 10.6h of sunshine.UV index
The months with the highest UV index in Lyons are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum daily UV index of 6 during August morphs into the following directions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
Frequently asked questions
What is the average August temperature in Lyons?
What is the average humidity in August in Lyons?
How much does it rain in Lyons in August?
When it does not snow in Lyons?
What is the average length of the day in August in Lyons?
What time are sunrise and sunset in August in Lyons?
What month has the most sunshine in Lyons?
How many hours of sunshine does Lyons have in August?
When is the highest UV index in Lyons?
What is the UV index reading in August in Lyons?
Average temperature in August
Lyons, IL
- Average high temperature in August: 79.3°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (29.1°F).
- Average low temperature in August: 66.7°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 (19.2°F).
Average pressure in August
Lyons, IL
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Lyons, IL
- Average wind speed in August: 6.8mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in August
Lyons, IL
- Average humidity in August: 75%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall in August
Lyons, IL
- Average rainfall in August: 0.63"
The wettest month (with the highest rainfall) is May (1.1").
The driest months (with the least rainfall) are February, March, November and December (0.39").
Average rainfall days in August
Lyons, IL
- Average rainfall days in August: 9.5 days
The month with the highest number of rainy days is June (11.7 days).
The month with the least rainy days is January (3.1 days).
Average snowfall in August
Lyons, IL
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Lyons, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (7.3 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
Lyons, IL
- Average daylight in August: 13h and 5min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in August: 10h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in August
Lyons, IL
- Average sunshine days in August: 17.2 days
The month with the most sunshine days is December (23.7 days).
The month with the least sunshine days is June (14.3 days).
Average UV index in August
Lyons, 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 and December (UV index 1).
Average cloud cover in August
Lyons, IL
- Average cloud cover in August: 27
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in August
Lyons, 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).
Lyons, Illinois, USA
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