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
August's average high-temperature is a still moderately hot 78.1°F (25.6°C), maintaining a close comparison with July's 79.9°F (26.6°C). In the month of August, Rockton's average low-temperature falls to a mild 60.3°F (15.7°C).Humidity
In August, the average relative humidity in Rockton is 83%.Rainfall
In Rockton, in August, it is raining for 13.7 days, with typically 1.69" (43mm) of accumulated precipitation. In Rockton, during the entire year, the rain falls for 122.2 days and collects up to 16.42" (417mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in August in Rockton is 13h and 51min.On the first day of August, sunrise is at 5:49 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 7:31 pm CDT.
Sunshine
The months with the most sunshine in Rockton are July and August, with an average of 9.5h of sunshine.UV index
In August, the average daily maximum UV index in Rockton is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 5 in August translates into this advice:
Exercise prevention - Warding off sunburn is urged. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are August temperatures in Rockton?
What is the average humidity in August in Rockton?
How many days does it rain in August in Rockton?
When it does not snow in Rockton?
How many hours of daylight does Rockton have in August?
When are sunrise and sunset in August in Rockton?
What are the months with the most sunshine in Rockton?
How many hours of sunshine does Rockton have in August?
How high is the UV index in August in Rockton?
Average temperature in August
Rockton, IL
- Average high temperature in August: 78.1°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in August: 60.3°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).
Average pressure in August
Rockton, IL
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Rockton, IL
- Average wind speed in August: 6.4mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in August
Rockton, IL
- Average humidity in August: 83%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and October (76%).
Average rainfall in August
Rockton, IL
- Average rainfall in August: 1.69"
The wettest month (with the highest rainfall) is June (2.28").
The driest months (with the least rainfall) are February and December (0.67").
Average rainfall days in August
Rockton, IL
- Average rainfall days in August: 13.7 days
The months with the highest number of rainy days are May and June (15.3 days).
The month with the least rainy days is January (3.1 days).
Average snowfall in August
Rockton, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (2.52").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Rockton, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (11.5 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
Rockton, 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 6min).
- Average sunshine in August: 9h and 3min
The months with the most sunshine are July and August (Average sunshine: 9h and 30min).
The months with the least sunshine are January and February (Average sunshine: 3h and 30min).
Average sunshine days in August
Rockton, IL
- Average sunshine days in August: 13.9 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is June (12.8 days).
Average UV index in August
Rockton, IL
- Average UV index in August: 5
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in August
Rockton, IL
- Average cloud cover in August: 36
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is September (Cloud cover 35).
Average visibility in August
Rockton, IL
- Average visibility in August: 5mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Rockton, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location