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 unfolding of August shows an average high-temperature of a still warm 79.3°F (26.3°C), indicating a slight variance from July's 80.1°F (26.7°C). Throughout August, the temperature in South Holland falls to an average low of 66°F (18.9°C).Humidity
The average relative humidity in August is 77%.Rainfall
In South Holland, in August, during 11 rainfall days, 0.98" (25mm) of precipitation is typically accumulated. Throughout the year, in South Holland, there are 110.3 rainfall days, and 10.31" (262mm) of precipitation is accumulated.Snowfall
In South Holland, snow does not fall in May through September.Daylight
The average length of the day in August is 13h and 48min.On the first day of August in South Holland, sunrise is at 5:45 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 7:24 pm CDT.
Sunshine
August has the most sunshine of the year in South Holland, with an average of 10.4h of sunshine.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index in South Holland. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The average daily UV index of 6 in August transforms into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Frequently asked questions
What are August temperatures in South Holland?
What is the average humidity in August in South Holland?
How many days does it rain in August in South Holland?
When it does not snow in South Holland?
What is the average length of the day in August in South Holland?
When are sunrise and sunset in August in South Holland?
What month has the most sunshine in South Holland?
How many hours of sunshine does South Holland have in August?
What are the months with the highest UV index in South Holland?
How high is the UV index in August in South Holland?
Average temperature in August
South Holland, IL
- Average high temperature in August: 79.3°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in August: 66°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in August
South Holland, 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
South Holland, IL
- Average wind speed in August: 6.8mph
The windiest month (with the highest average wind speed) is January (11mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in August
South Holland, IL
- Average humidity in August: 77%
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
South Holland, IL
- Average rainfall in August: 0.98"
The wettest months (with the highest rainfall) are May and June (1.38").
The driest months (with the least rainfall) are February and December (0.47").
Average rainfall days in August
South Holland, IL
- Average rainfall days in August: 11 days
The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is February (4.1 days).
Average snowfall in August
South Holland, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (1.1").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
South Holland, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (9.3 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
South Holland, 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: 10h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in August
South Holland, IL
- Average sunshine days in August: 15.6 days
The month with the most sunshine days is December (19.8 days).
The month with the least sunshine days is June (13.1 days).
Average UV index in August
South Holland, 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 December (UV index 1).
Average cloud cover in August
South Holland, IL
- Average cloud cover in August: 28
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in August
South Holland, 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).
South Holland, Illinois, USA
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