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 transition into August shows a subtle variation to a still moderately hot 80.2°F (26.8°C) from July's 81.7°F (27.6°C) in the average high-temperature. During August, Mokena's temperature falls to a steady low-temperature average of 63.3°F (17.4°C).Humidity
In August, the average relative humidity is 81%.Rainfall
In Mokena, during August, the rain falls for 15.2 days and regularly aggregates up to 2.6" (66mm) of precipitation. Throughout the year, there are 149.8 rainfall days, and 31.26" (794mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in August is 13h and 47min.On the first day of the month, sunrise is at 5:47 am and sunset at 8:08 pm. On the last day of August, sunrise is at 6:17 am and sunset at 7:25 pm CDT.
Sunshine
August has the most sunshine of the year, with an average of 9.6h of sunshine.UV index
In Mokena, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 5 during August morphs into the following directions:
Heed the precautions - It is counselled to guard against solar damage. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are August temperatures?
What is the average humidity in August?
How much does it rain in August?
When it does not snow?
How many hours of daylight does Mokena have in August?
When are sunrise and sunset in August?
What month has the most sunshine?
How long on average sun shines in August?
What is the UV index intensity in August?
Average temperature in August
Mokena, IL
- Average high temperature in August: 80.2°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 (29.3°F).
- Average low temperature in August: 63.3°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in August
Mokena, 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
Mokena, IL
- Average wind speed in August: 6mph
The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in August
Mokena, IL
- Average humidity in August: 81%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in August
Mokena, IL
- Average rainfall in August: 2.6"
The wettest month (with the highest rainfall) is May (4.21").
The driest months (with the least rainfall) are February and December (1.61").
Average rainfall days in August
Mokena, IL
- Average rainfall days in August: 15.2 days
The months with the highest number of rainy days are June and July (17.3 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in August
Mokena, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (4.53").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Mokena, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (12.3 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
Mokena, 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 4min
The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in August
Mokena, IL
- Average sunshine days in August: 12.9 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is April (10.7 days).
Average UV index in August
Mokena, 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 and December (UV index 1).
Average cloud cover in August
Mokena, IL
- Average cloud cover in August: 34
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in August
Mokena, IL
- Average visibility in August: 5mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).
Mokena, Illinois, USA
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