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
As Johnsville transitions from July to August, the average high-temperatures adjust to a still warm 84.4°F (29.1°C), nearly the same as the previous 85.3°F (29.6°C). August witnesses an average nighttime temperature of 64°F (17.8°C).Heat index
The heat index in August is computed to be a hot 93.2°F (34°C). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.One should consider that heat index numbers are for shaded settings and light wind. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', evaluates the perceived heat by adding the effect of moisture in the air. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Humidity
The least humid month is August, with an average relative humidity of 74%.Rainfall
In August, the rain falls for 14.3 days. Throughout August, 2.01" (51mm) of precipitation is accumulated. Throughout the year, there are 156.2 rainfall days, and 26.1" (663mm) of precipitation is accumulated.Snowfall
In Johnsville, snow does not fall in May through October.Daylight
In Johnsville, the average length of the day in August is 13h and 38min.On the first day of the month, sunrise is at 6:38 am and sunset at 8:47 pm. On the last day of August, sunrise is at 7:05 am and sunset at 8:07 pm EDT.
Sunshine
The month with the most sunshine is August, with an average of 10.2h of sunshine.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A typical high UV index of 6 in August suggests the following recommendations:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in August?
What is the least humid month?
What is the average humidity in August?
How much does it rain in August?
When it does not snow?
What is the average length of the day in August?
When is the sunrise / sunset in August?
What month has the most sunshine?
How many hours of sunshine does Johnsville have in August?
What is the month with the highest UV index?
What is the UV index reading in August?
Average temperature in August
Johnsville, KY
- Average high temperature in August: 84.4°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in August: 64°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure in August
Johnsville, KY
- Average pressure in August: 29.99"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in August
Johnsville, KY
- Average wind speed in August: 5mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in August
Johnsville, KY
- Average humidity in August: 74%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (74%).
Average rainfall in August
Johnsville, KY
- Average rainfall in August: 2.01"
The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in August
Johnsville, KY
- Average rainfall days in August: 14.3 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is November (9.8 days).
Average snowfall in August
Johnsville, KY
- Average snowfall in August: 0"
The month with the highest snowfall is January (1.89").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Johnsville, KY
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (8.4 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
Johnsville, KY
- 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 August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in August
Johnsville, KY
- Average sunshine days in August: 13.9 days
The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in August
Johnsville, KY
- Average UV index in August: 6
The months with the highest UV index are 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
Johnsville, KY
- Average cloud cover in August: 28
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in August
Johnsville, KY
- Average visibility in August: 6mi
The months with the highest visibility are January, March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are February, May and July (5mi).
Johnsville, Kentucky, USA
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