August weather forecastRoberts, IL
August
Weather in August
August, the last month of the summer in Roberts, is also a moderately hot month, with temperature in the range of an average high of 80.2°F (26.8°C) and an average low of 63.1°F (17.3°C).Temperature
August is marked by an average high-temperature of a still warm 80.2°F (26.8°C), almost identical to the preceding month. Throughout the month of August, Roberts witnesses an average temperature of 63.1°F (17.3°C).Humidity
The average relative humidity in August is 83%.Rainfall
In Roberts, during August, the rain falls for 13.7 days and regularly aggregates up to 1.93" (49mm) of precipitation. In Roberts, Illinois, during the entire year, the rain falls for 139.8 days and collects up to 22.05" (560mm) of precipitation.Snowfall
In Roberts, snow does not fall in May through October.Daylight
The average length of the day in August is 13h and 44min.On the first day of the month, sunrise is at 5:50 am and sunset at 8:07 pm. On the last day of August, sunrise is at 6:19 am and sunset at 7:25 pm CDT.
Sunshine
In August, the average sunshine in Roberts is 9.7h.UV index
In Roberts, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index, 5 during August, leads to the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Minimize direct exposure to the Sun during midday when its radiation is at its peak. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Roberts, IL
- Average high temperature in August: 80.2°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in August: 63.1°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in August
Roberts, IL
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Roberts, IL
- Average wind speed in August: 6.5mph
The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in August
Roberts, IL
- Average humidity in August: 83%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Roberts, IL
- Average rainfall in August: 1.93"
The wettest month (with the highest rainfall) is May (2.91").
The driest months (with the least rainfall) are February and December (1.14").
Average rainfall days in August
Roberts, IL
- Average rainfall days in August: 13.7 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in August
Roberts, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (2.83").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Roberts, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (10.4 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
Roberts, IL
- Average daylight in August: 13h and 42min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in August: 9h and 42min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in August
Roberts, IL
- Average sunshine days in August: 13.5 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is July (10.6 days).
Average UV index in August
Roberts, 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, February, November and December (UV index 2).
Average cloud cover in August
Roberts, IL
- Average cloud cover in August: 33
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 33).
Average visibility in August
Roberts, IL
- Average visibility in August: 5mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
