August weather forecast
McKinney, KY

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Weather in August

The last month of the summer, August, is also a moderately hot month in McKinney, Kentucky, with an average temperature fluctuating between 84°F (28.9°C) and 63.9°F (17.7°C).

Temperature

A minimal variation is noted in McKinney's average high-temperature at the onset of August, reaching a still moderately hot 84°F (28.9°C) from July's 85.1°F (29.5°C). McKinney reports a consistent average low-temperature of 63.9°F (17.7°C) throughout August nights.

Heat index

The heat index in August is appraised at a hot 93.2°F (34°C). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
Records show heat index calculations are tailored for shaded regions and mild winds. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.

Humidity

The months with the lowest humidity in McKinney are August and October, with an average relative humidity of 76%.

Rainfall

In McKinney, in August, during 16.4 rainfall days, 3.15" (80mm) of precipitation is typically accumulated. In McKinney, during the entire year, the rain falls for 176.6 days and collects up to 39.37" (1000mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in August is 13h and 34min.
On the first day of August, sunrise is at 6:43 am and sunset at 8:46 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 8:09 pm EDT.

Sunshine

In McKinney, Kentucky, the average sunshine in August is 9.6h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in McKinney. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum daily UV index of 6 during August morphs into the following directions:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot in McKinney during August?

The high-temperature, in August, in McKinney, is 84°F (28.9°C), while the low-temperature averages to 63.9°F (17.7°C). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, is appraised at 93.2°F (34°C).

What is the least humid month in McKinney?

The months with the lowest humidity are August and October, with an average relative humidity of 76%.

What is the average humidity in August in McKinney?

In August, the average relative humidity is 76%.

How much does it rain in McKinney in August?

In McKinney, during August, the rain falls for 16.4 days and regularly aggregates up to 3.15" (80mm) of precipitation.

When it does not snow in McKinney?

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

What is the average length of the day in August in McKinney?

In McKinney, Kentucky, the average day length in August is 13h and 34min.

When is the sunrise / sunset in August in McKinney?

In August, on the first day of the month, sunrise is at 6:43 am and sunset at 8:46 pm. On the last day of the month, in McKinney, Kentucky, sunrise is at 7:09 am and sunset at 8:09 pm EDT.

How long on average sun shines in August in McKinney?

In August, the average sunshine duration is 9.6h.

When is the highest UV index in McKinney?

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

How high is the UV index in August in McKinney?

The average daily maximum UV index in August in McKinney is 6. A UV Index estimate of 6 to 7 represents a high health risk 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
McKinney, KY

Average temperature in August - McKinney, KY
  • Average high temperature in August: 84°F

The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (39.7°F).

  • Average low temperature in August: 63.9°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 (26.6°F).

Average pressure in August
McKinney, KY

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

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

Average wind speed in August
McKinney, KY

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

The windiest months (with the highest average wind speed) are January and February (8.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in August
McKinney, KY

Average humidity in August - McKinney, KY
  • Average humidity in August: 76%

The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are August and October (76%).

Average rainfall in August
McKinney, KY

Average rainfall in August - McKinney, KY
  • Average rainfall in August: 3.15"

The wettest month (with the highest rainfall) is February (3.86").
The driest month (with the least rainfall) is September (2.52").

Average rainfall days in August
McKinney, KY

Average rainfall days in August - McKinney, KY
  • Average rainfall days in August: 16.4 days

The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is November (11.2 days).

Average snowfall in August
McKinney, KY

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

The month with the highest snowfall is February (3.35").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
McKinney, KY

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

The month with the highest number of snowfall days is January (9.1 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
McKinney, KY

Average daylight in August / Average sunshine in August - McKinney, KY
  • Average daylight in August: 13h and 4min

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

  • Average sunshine in August: 9h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in August
McKinney, KY

Average sunshine days in August - McKinney, KY
  • Average sunshine days in August: 12.9 days

The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is February (9.5 days).

Average UV index in August
McKinney, KY

Average UV index in August - McKinney, 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
McKinney, KY

Average cloud cover in August - McKinney, KY
  • Average cloud cover in August: 31

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in August
McKinney, KY

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

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

McKinney, Kentucky, USA

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