August weather forecast
South Union, KY

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Weather in August

The last month of the summer, August, is another warm month in South Union, Kentucky, with an average temperature varying between 85.5°F (29.7°C) and 66.7°F (19.3°C).

Temperature

As July transitions into August, the average high-temperature rests at a moderately hot 85.5°F (29.7°C), maintaining a close resemblance to the previous month. South Union, during August, witnesses an average low-temperature of 66.7°F (19.3°C).

Heat index

For most parts of August, the heat index is estimated at a fiery hot 96.8°F (36°C). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Note that heat index values are valued for light wind and location in the shade. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In August, the average relative humidity is 76%.

Rainfall

In South Union, Kentucky, during August, the rain falls for 17.3 days and regularly aggregates up to 3.5" (89mm) of precipitation. In South Union, during the entire year, the rain falls for 171.5 days and collects up to 37.2" (945mm) of precipitation.

Snowfall

In South Union, Kentucky, snow does not fall in May through October.

Daylight

In South Union, the average length of the day in August is 13h and 32min.
On the first day of the month, sunrise is at 5:52 am and sunset at 7:53 pm. On the last day of August, sunrise is at 6:17 am and sunset at 7:16 pm CDT.

Sunshine

June and August, with an average of 10.4h of sunshine, are months with the most sunshine.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 6 during August translates into the following directions:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Updated: Jul 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in August?

In August, the average high-temperature and low-temperature are 85.5°F (29.7°C) and 66.7°F (19.3°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in August is estimated at 96.8°F (36°C).

What is the average humidity in August?

In South Union, the average relative humidity in August is 76%.

How many days does it rain in August?

In South Union, in August, it is raining for 17.3 days, with typically 3.5" (89mm) of accumulated precipitation.

When it does not snow?

May through October are months without snowfall.

How many hours of daylight does South Union have in August?

The average day length in August is 13h and 32min.

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 5:52 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 7:16 pm CDT.

What is the month with the most sunshine?

June and August, with an average of 10.4h of sunshine, are months with the most sunshine.

How many hours of sunshine does South Union have in August?

In South Union, the average sunshine duration in August is 10.4h.

What is the month with the highest UV index?

The months with the highest UV index in South Union are May through August, with an average maximum UV index of 6.

What is the UV index intensity in August?

In South Union, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
South Union, KY

Average temperature in August - South Union, KY
  • Average high temperature in August: 85.5°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (42.3°F).

  • Average low temperature in August: 66.7°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 (28.8°F).

Average pressure in August
South Union, KY

Average pressure in August - South Union, KY
  • Average pressure in August: 29.99"Hg

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in August
South Union, KY

Average wind speed in August - South Union, KY
  • Average wind speed in August: 5mph

The windiest month (with the highest average wind speed) is February (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).

Average humidity in August
South Union, KY

Average humidity in August - South Union, KY
  • Average humidity in August: 76%

The months with the highest relative humidity are March, May and December (79%).
The month with the lowest relative humidity is October (74%).

Average rainfall in August
South Union, KY

Average rainfall in August - South Union, KY
  • Average rainfall in August: 3.5"

The wettest month (with the highest rainfall) is July (4.13").
The driest month (with the least rainfall) is September (2.32").

Average rainfall days in August
South Union, KY

Average rainfall days in August - South Union, KY
  • Average rainfall days in August: 17.3 days

The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is November (10.2 days).

Average snowfall in August
South Union, KY

Average snowfall in August - South Union, KY
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.65").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
South Union, KY

Average snowfall days in August - South Union, KY
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (4.2 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
South Union, KY

Average daylight in August / Average sunshine in August - South Union, KY
  • Average daylight in August: 13h and 3min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in August: 10h and 2min

The months with the most sunshine are June and August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

Average sunshine days in August
South Union, KY

Average sunshine days in August - South Union, KY
  • Average sunshine days in August: 11.7 days

The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is July (9.9 days).

Average UV index in August
South Union, KY

Average UV index in August - South Union, KY
  • 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
South Union, KY

Average cloud cover in August - South Union, KY
  • Average cloud cover in August: 30

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in August
South Union, KY

Average visibility in August - South Union, KY
  • 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).

South Union, Kentucky, USA

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