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
At the start of August, Raleigh's average high-temperature reaches a warm 84.9°F (29.4°C), subtly different from the preceding month. Throughout August, Raleigh experiences a low-temperature average of 66.2°F (19°C).Heat index
In August, the heat index is computed to be a very hot 95°F (35°C). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are of high significance for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.
Humidity
The average relative humidity in August is 77%.Rainfall
In Raleigh, in August, during 13.3 rainfall days, 1.77" (45mm) of precipitation is typically accumulated. Throughout the year, there are 146.3 rainfall days, and 24.96" (634mm) of precipitation is accumulated.Snowfall
In Raleigh, snow does not fall in May through October.Daylight
In August, the average length of the day in Raleigh, Illinois, is 13h and 35min.On the first day of the month, sunrise is at 5:58 am and sunset at 8:02 pm. On the last day of August, in Raleigh, sunrise is at 6:23 am and sunset at 7:24 pm CDT.
Sunshine
The average sunshine in August in Raleigh is 10.4h.UV index
The months with the highest UV index in Raleigh are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.Note: A daily maximum UV index of 6 in August translates into the following instructions:
Shield from overexposure. Defense against sun-related harm is required. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Raleigh in August?
What is the average humidity in August in Raleigh?
How many days does it rain in August in Raleigh?
When it does not snow in Raleigh?
What is the average length of the day in August in Raleigh?
When is the sunrise / sunset in August in Raleigh?
How many hours of sunshine does Raleigh have in August?
What is the month with the highest UV index in Raleigh?
What is the UV index intensity in August in Raleigh?
Average temperature in August
Raleigh, IL
- Average high temperature in August: 84.9°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (39.7°F).
- Average low temperature in August: 66.2°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure in August
Raleigh, IL
- Average pressure in August: 29.99"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in August
Raleigh, IL
- Average wind speed in August: 5.8mph
The windiest month (with the highest average wind speed) is February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in August
Raleigh, IL
- Average humidity in August: 77%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall in August
Raleigh, IL
- Average rainfall in August: 1.77"
The wettest month (with the highest rainfall) is April (3.27").
The driest month (with the least rainfall) is September (1.14").
Average rainfall days in August
Raleigh, IL
- Average rainfall days in August: 13.3 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is November (9 days).
Average snowfall in August
Raleigh, IL
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.87").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Raleigh, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (4.8 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
Raleigh, 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 month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in August
Raleigh, IL
- Average sunshine days in August: 15.3 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is May (11.2 days).
Average UV index in August
Raleigh, 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
Raleigh, IL
- Average cloud cover in August: 28
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in August
Raleigh, 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).
Raleigh, Illinois, USA
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