August weather forecastLouisville, MS
August
Weather in August
The last month of the summer, August, is another hot month in Louisville, Mississippi, with an average temperature varying between 70.9°F (21.6°C) and 90.5°F (32.5°C).Temperature
The arrival of August marks a slight shift to an average high-temperature of a still hot 90.5°F (32.5°C) from July's 91°F (32.8°C). In Louisville, August's nights observe an average temperature dip to an agreeable 70.9°F (21.6°C).Heat index
During August, the heat index is estimated at a blistering 111.2°F (44°C). Keep wary: Heat cramps along with heat exhaustion are expected. Heatstroke is a possible outcome of ongoing activity.It is worth noting that heat index values are gauged for conditions in the shade and light breezes. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and 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 are of high significance for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. As body temperatures escalate without effective heat release, one might face dehydration threats.
Humidity
In August, the average relative humidity in Louisville, Mississippi, is 74%.Rainfall
In Louisville, in August, during 19.5 rainfall days, 2.99" (76mm) of precipitation is typically accumulated. Throughout the year, in Louisville, there are 157.5 rainfall days, and 32.13" (816mm) of precipitation is accumulated.Snowfall
In Louisville, Mississippi, snow does not fall in April through November.Daylight
In Louisville, Mississippi, the average length of the day in August is 13h and 20min.On the first day of August, sunrise is at 6:09 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 7:22 pm CDT.
Sunshine
In August, the average sunshine in Louisville is 10.2h.UV index
In Louisville, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In August, a regular UV index of 6 translates into these guidelines:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Louisville, MS
- Average high temperature in August: 90.5°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (51.8°F).
- Average low temperature in August: 70.9°F
The month with the highest average low temperature is July (71.1°F).
The coldest month (with the lowest average low temperature) is January (36.7°F).
Average pressure in August
Louisville, MS
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in August
Louisville, MS
- Average wind speed in August: 4.9mph
The windiest month (with the highest average wind speed) is February (7.7mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in August
Louisville, MS
- Average humidity in August: 74%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Louisville, MS
- Average rainfall in August: 2.99"
The wettest month (with the highest rainfall) is April (3.31").
The driest month (with the least rainfall) is November (1.81").
Average rainfall days in August
Louisville, MS
- Average rainfall days in August: 19.5 days
The month with the highest number of rainy days is August (19.5 days).
The month with the least rainy days is November (7.9 days).
Average snowfall in August
Louisville, MS
- Average snowfall in August: 0"
The months with the highest snowfall are January and February (0.35").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in August
Louisville, MS
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Louisville, MS
- Average daylight in August: 13h and 18min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in August: 10h and 12min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in August
Louisville, MS
- Average sunshine days in August: 9.6 days
The month with the most sunshine days is October (21 days).
The months with the least sunshine days are July and August (9.6 days).
Average UV index in August
Louisville, MS
- Average UV index in August: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in August
Louisville, MS
- Average cloud cover in August: 31
The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in August
Louisville, MS
- 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).
