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
Stepping into August, Rockwood records an average high-temperature of a still hot 86.2°F (30.1°C), almost consistent with July. During August, the average low-temperature is a refreshing 66°F (18.9°C).Heat index
Throughout August, the heat index is calculated to be a fiery hot 98.6°F (37°C). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.Note that heat index values are valued for light wind and location in the shade. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is achieved by amalgamating air temperature with the relative humidity readings. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.
Humidity
In August, the average relative humidity is 76%.Rainfall
In August, the rain falls for 10.9 days. Throughout August, 0.98" (25mm) of precipitation is accumulated. Throughout the year, there are 111.9 rainfall days, and 10.43" (265mm) of precipitation is accumulated.Snowfall
In Rockwood, Illinois, snow does not fall in April through September.Daylight
The average length of the day in August is 13h and 35min.On the first day of August, sunrise is at 6:02 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 7:29 pm CDT.
Sunshine
In Rockwood, Illinois, the average sunshine in August is 10.3h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: An average UV index of 6 in August transforms into this advice:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. 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
How hot does it get in August?
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 Rockwood have in August?
What time are sunrise and sunset in August?
How many hours of sunshine does Rockwood have in August?
What is the month with the highest UV index?
What is the UV index reading in August?
Average temperature in August
Rockwood, IL
- Average high temperature in August: 86.2°F
The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (39.4°F).
- Average low temperature in August: 66°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in August
Rockwood, IL
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Rockwood, IL
- Average wind speed in August: 5.5mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in August
Rockwood, IL
- Average humidity in August: 76%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Rockwood, IL
- Average rainfall in August: 0.98"
The wettest months (with the highest rainfall) are April and May (1.22").
The driest month (with the least rainfall) is September (0.43").
Average rainfall days in August
Rockwood, IL
- Average rainfall days in August: 10.9 days
The month with the highest number of rainy days is July (13.4 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in August
Rockwood, IL
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.59").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in August
Rockwood, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (3.7 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
Rockwood, IL
- Average daylight in August: 13h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in August: 10h and 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 4h and 48min).
Average sunshine days in August
Rockwood, IL
- Average sunshine days in August: 16.5 days
The month with the most sunshine days is October (21.9 days).
The month with the least sunshine days is July (13.5 days).
Average UV index in August
Rockwood, IL
- Average UV index in August: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in August
Rockwood, IL
- Average cloud cover in August: 28
The months with the most cloud cover are January and February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in August
Rockwood, 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).
Rockwood, Illinois, USA
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