August weather forecastRichton Park, IL
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Richton Park, Illinois, with an average temperature varying between 64.6°F (18.1°C) and 80.1°F (26.7°C).Temperature
Richton Park indicates an average high-temperature of a still warm 80.1°F (26.7°C) in August, showing minor variation from July's 81.3°F (27.4°C). Richton Park's temperature in August lowers to a consistent average of 64.6°F (18.1°C) during the nights.Humidity
In Richton Park, the average relative humidity in August is 78%.Rainfall
In Richton Park, in August, during 14.8 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. Throughout the year, in Richton Park, there are 155.6 rainfall days, and 31.3" (795mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall in Richton Park.Daylight
In August, the average length of the day is 13h and 47min.On the first day of August, sunrise is at 5:46 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 7:25 pm CDT.
Sunshine
With an average of 10.1h of sunshine, August has the most sunshine of the year.UV index
In Richton Park, Illinois, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 5 during August translates into the following directions:
Heed the precautions - Suggestions to avoid sunburn are made. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Richton Park, IL
- Average high temperature in August: 80.1°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in August: 64.6°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 (18.9°F).
Average pressure in August
Richton Park, 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
Richton Park, IL
- Average wind speed in August: 6.3mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in August
Richton Park, IL
- Average humidity in August: 78%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (73%).
Average rainfall in August
Richton Park, IL
- Average rainfall in August: 2.56"
The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is December (1.54").
Average rainfall days in August
Richton Park, IL
- Average rainfall days in August: 14.8 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (6.1 days).
Average snowfall in August
Richton Park, 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
Richton Park, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Richton Park, IL
- Average daylight in August: 13h and 48min
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 6min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in August
Richton Park, IL
- Average sunshine days in August: 13.3 days
The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is April (10.2 days).
Average UV index in August
Richton Park, IL
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Richton Park, IL
- Average cloud cover in August: 30
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in August
Richton Park, IL
- Average visibility in August: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
