August weather forecast
Thornhill, KY

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Weather in August

August, the last month of the summer in Thornhill, is another warm month, with temperature in the range of an average high of 85.6°F (29.8°C) and an average low of 65.5°F (18.6°C).

Temperature

As Thornhill steps into August, the average high-temperature is measured at a warm 85.6°F (29.8°C), displaying minor differences from July's 86.5°F (30.3°C). Thornhill registers a consistent average low-temperature of 65.5°F (18.6°C) during August.

Heat index

August's heat index is estimated at a very hot 95°F (35°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Records show heat index calculations are tailored for shaded regions and mild winds. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an estimation of the warmth sensation when considering humidity levels. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are highly important for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

The least humid month is August, with an average relative humidity of 73%.

Rainfall

In August, the rain falls for 14.6 days. Throughout August, 2.28" (58mm) of precipitation is accumulated. Throughout the year, there are 168.9 rainfall days, and 34.09" (866mm) of precipitation is accumulated.

Snowfall

In Thornhill, snow does not fall in May through October.

Daylight

The average length of the day in August is 13h and 36min.
On the first day of August, sunrise is at 6:45 am and sunset at 8:52 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 8:13 pm EDT.

Sunshine

In August, the average sunshine is 9.8h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Thornhill. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index, 6 in August, converts into the following recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Updated: Jul 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August in Thornhill?

In Thornhill, in August, the average high-temperature is 85.6°F (29.8°C), and the average low-temperature is 65.5°F (18.6°C). The average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, in August is estimated at 95°F (35°C).

What is the least humid month in Thornhill?

With an average relative humidity of 73%, August is the least humid month.

What is the average humidity in August?

In Thornhill, the average relative humidity in August is 73%.

How many days does it rain in August?

In Thornhill, in August, during 14.6 rainfall days, 2.28" (58mm) of precipitation is typically accumulated.

When it does not snow?

In Thornhill, snow does not fall in May through October.

What is the average length of the day in August?

In Thornhill, Kentucky, the average day length in August is 13h and 36min.

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 6:45 am and sunset at 8:52 pm. On the last day of the month, in Thornhill, sunrise is at 7:11 am and sunset at 8:13 pm EDT.

How long on average sun shines in August?

In Thornhill, the average sunshine duration in August is 9.8h.

When is the highest UV index?

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

What is the UV index reading in August in Thornhill?

In Thornhill, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health threat 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
Thornhill, KY

Average temperature in August - Thornhill, KY
  • Average high temperature in August: 85.6°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in August: 65.5°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).

Average pressure in August
Thornhill, KY

Average pressure in August - Thornhill, KY
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in August
Thornhill, KY

Average wind speed in August - Thornhill, KY
  • Average wind speed in August: 4.8mph

The windiest month (with the highest average wind speed) is January (8mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

Average humidity in August
Thornhill, KY

Average humidity in August - Thornhill, KY
  • Average humidity in August: 73%

The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is August (73%).

Average rainfall in August
Thornhill, KY

Average rainfall in August - Thornhill, KY
  • Average rainfall in August: 2.28"

The wettest month (with the highest rainfall) is April (3.98").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in August
Thornhill, KY

Average rainfall days in August - Thornhill, KY
  • Average rainfall days in August: 14.6 days

The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is February (10.6 days).

Average snowfall in August
Thornhill, KY

Average snowfall in August - Thornhill, KY
  • Average snowfall in August: 0"

The month with the highest snowfall is February (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Thornhill, KY

Average snowfall days in August - Thornhill, KY
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (8.3 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
Thornhill, KY

Average daylight in August / Average sunshine in August - Thornhill, 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 36min).

  • Average sunshine in August: 9h and 5min

The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in August
Thornhill, KY

Average sunshine days in August - Thornhill, KY
  • Average sunshine days in August: 14.1 days

The month with the most sunshine days is October (17.9 days).
The month with the least sunshine days is May (10.2 days).

Average UV index in August
Thornhill, KY

Average UV index in August - Thornhill, 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, November and December (UV index 2).

Average cloud cover in August
Thornhill, KY

Average cloud cover in August - Thornhill, KY
  • Average cloud cover in August: 28

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in August
Thornhill, KY

Average visibility in August - Thornhill, KY
  • Average visibility in August: 6mi

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

Thornhill, Kentucky, USA

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