August weather forecast
Shelbyville, TX

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Weather in August

August, the last month of the summer in Shelbyville, is a fiery hot month, with an average temperature fluctuating between 73.2°F (22.9°C) and 95°F (35°C).

Temperature

August stands out as Shelbyville's warmest month, with an average high-temperature of 95°F (35°C) and a low-temperature of 73.2°F (22.9°C).

Heat index

In August, the average heat index is appraised at a burning hot 122°F (50°C). Alert: Heat cramps and heat exhaustion are likely to occur. Prolonged exertion can lead to heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. 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 'feels like' or 'felt air temperature', determines the feeling of heat when you account for the relative humidity. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

With an average relative humidity of 70%, August is the least humid month.

Rainfall

In Shelbyville, in August, it is raining for 15.4 days, with typically 2.76" (70mm) of accumulated precipitation. In Shelbyville, during the entire year, the rain falls for 160.4 days and collects up to 35.83" (910mm) of precipitation.

Snowfall

In Shelbyville, snow does not fall in April through August, October and November.

Daylight

In Shelbyville, Texas, the average length of the day in August is 13h and 16min.
On the first day of the month, sunrise is at 6:32 am and sunset at 8:12 pm. On the last day of August, in Shelbyville, sunrise is at 6:51 am and sunset at 7:41 pm CDT.

Sunshine

August has the most sunshine of the year in Shelbyville, with an average of 10.3h of sunshine.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: In August, the maximum UV index of 7 suggests these recommendations:
Shield from overexposure. Defense against sun-related harm is required. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the warmest months in Shelbyville?

August is the warmest month, with an average high-temperature of 95°F (35°C) and an average low-temperature of 73.2°F (22.9°C).

How hot is it in Shelbyville in August?

The average high-temperature and low-temperature during August are 95°F (35°C) and 73.2°F (22.9°C) respectively. In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, is appraised at 122°F (50°C).

What is the least humid month in Shelbyville?

The least humid month in Shelbyville, Texas, is August, with an average relative humidity of 70%.

What is the average humidity in August in Shelbyville?

In Shelbyville, the average relative humidity in August is 70%.

How many days does it rain in August in Shelbyville?

In Shelbyville, in August, it is raining for 15.4 days, with typically 2.76" (70mm) of accumulated precipitation.

When it does not snow in Shelbyville?

In Shelbyville, snow does not fall in April through August, October and November.

Does it snow in Shelbyville in August?

In Shelbyville, in August, it doesn't snow. In September, it regularly snows.

How many hours of daylight does Shelbyville have in August?

In Shelbyville, the average day length in August is 13h and 16min.

When are sunrise and sunset in August in Shelbyville?

On the first day of August in Shelbyville, Texas, sunrise is at 6:32 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 7:41 pm CDT.

What month has the most sunshine in Shelbyville?

August has the most sunshine of the year in Shelbyville, Texas, with an average of 10.3h of sunshine.

How many hours of sunshine does Shelbyville have in August?

The average sunshine duration in August is 10.3h.

When is the highest UV index in Shelbyville?

The months with the highest UV index in Shelbyville, Texas, are May through August, with an average maximum UV index of 7.

What is the UV index intensity in August in Shelbyville?

The average daily maximum UV index in August is 7. 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
Shelbyville, TX

Average temperature in August - Shelbyville, TX
  • Average high temperature in August: 95°F

The warmest month (with the highest average high temperature) is August (95°F).
The month with the lowest average high temperature is January (55.8°F).

  • Average low temperature in August: 73.2°F

The month with the highest average low temperature is August (73.2°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).

Average pressure in August
Shelbyville, TX

Average pressure in August - Shelbyville, TX
  • Average pressure in August: 29.94"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
Shelbyville, TX

Average wind speed in August - Shelbyville, TX
  • Average wind speed in August: 4.8mph

The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest months (with the lowest average wind speed) are July, August and September (4.8mph).

Average humidity in August
Shelbyville, TX

Average humidity in August - Shelbyville, TX
  • Average humidity in August: 70%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is August (70%).

Average rainfall in August
Shelbyville, TX

Average rainfall in August - Shelbyville, TX
  • Average rainfall in August: 2.76"

The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is November (2.44").

Average rainfall days in August
Shelbyville, TX

Average rainfall days in August - Shelbyville, TX
  • Average rainfall days in August: 15.4 days

The month with the highest number of rainy days is March (15.5 days).
The month with the least rainy days is November (10.2 days).

Average snowfall in August
Shelbyville, TX

Average snowfall in August - Shelbyville, TX
  • Average snowfall in August: 0"

The month with the highest snowfall is January (0.39").
The months with the least snowfall are April, May, June, July, August, October and November (0").

Average snowfall days in August
Shelbyville, TX

Average snowfall days in August - Shelbyville, TX
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (0.9 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).

Average daylight in August /
Average sunshine in August
Shelbyville, TX

Average daylight in August / Average sunshine in August - Shelbyville, TX
  • Average daylight in August: 13h and 2min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in August
Shelbyville, TX

Average sunshine days in August - Shelbyville, TX
  • Average sunshine days in August: 13.3 days

The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is February (12.3 days).

Average UV index in August
Shelbyville, TX

Average UV index in August - Shelbyville, TX
  • Average UV index in August: 7

The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

Average cloud cover in August
Shelbyville, TX

Average cloud cover in August - Shelbyville, TX
  • 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 August (Cloud cover 30).

Average visibility in August
Shelbyville, TX

Average visibility in August - Shelbyville, TX
  • Average visibility in August: 6mi

The months with the highest visibility are June, August, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, September and December (5mi).

Shelbyville, Texas, USA

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