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
The average high-temperature for August is a still warm 82.9°F (28.3°C), closely aligning with the temperature of the preceding month. Throughout August, the nighttime temperature in Louisville averages to a refreshing 65.7°F (18.7°C).Heat index
August's heat index is appraised at a hot 91.4°F (33°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. 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.
Humidity
In Louisville, the average relative humidity in August is 79%.Rainfall
In Louisville, in August, it is raining for 15.4 days, with typically 2.91" (74mm) of accumulated precipitation. In Louisville, during the entire year, the rain falls for 167.3 days and collects up to 37.17" (944mm) of precipitation.Snowfall
In Louisville, snow does not fall in May through September.Daylight
In Louisville, Illinois, the average length of the day in August is 13h and 38min.On the first day of the month, sunrise is at 5:56 am and sunset at 8:04 pm. On the last day of August, sunrise is at 6:22 am and sunset at 7:25 pm CDT.
Sunshine
In Louisville, Illinois, the average sunshine in August is 10.2h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index in Louisville. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index, 6 during August, leads to the following recommendations:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is August in Louisville?
What is the average humidity in August in Louisville?
How many days does it rain in August in Louisville?
When it does not snow in Louisville?
What is the average length of the day in August in Louisville?
When are sunrise and sunset in August in Louisville?
How long on average sun shines in August in Louisville?
What are the months with the highest UV index in Louisville?
How high is the UV index in August in Louisville?
Average temperature in August
Louisville, IL
- Average high temperature in August: 82.9°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in August: 65.7°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in August
Louisville, 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
Louisville, IL
- Average wind speed in August: 6mph
The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in August
Louisville, IL
- Average humidity in August: 79%
The months with the highest relative humidity are May and July (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall in August
Louisville, IL
- Average rainfall in August: 2.91"
The wettest month (with the highest rainfall) is April (4.88").
The driest months (with the least rainfall) are February and September (2.09").
Average rainfall days in August
Louisville, IL
- Average rainfall days in August: 15.4 days
The month with the highest number of rainy days is May (19.9 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in August
Louisville, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Louisville, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (7.1 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
Louisville, IL
- Average daylight in August: 13h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in August: 10h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in August
Louisville, IL
- Average sunshine days in August: 11.7 days
The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is May (9 days).
Average UV index in August
Louisville, 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, November and December (UV index 2).
Average cloud cover in August
Louisville, IL
- Average cloud cover in August: 29
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in August
Louisville, 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).
Louisville, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location