August weather forecast
Mariemont, OH

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Weather in August

August, the last month of the summer in Mariemont, is also a moderately hot month, with an average temperature fluctuating between 64.2°F (17.9°C) and 83.8°F (28.8°C).

Temperature

The arrival of August denotes a barely perceptible change in the average high-temperatures to a still warm 83.8°F (28.8°C) from July's 84.7°F (29.3°C). In Mariemont, the expected average low-temperature for August is a comfortable 64.2°F (17.9°C).

Heat index

During August, the heat index is computed to be a tropical 91.4°F (33°C). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.

Humidity

The months with the lowest humidity in Mariemont are August through October, with an average relative humidity of 74%.

Rainfall

In August, in Mariemont, Ohio, the rain falls for 13.6 days. Throughout August, 1.97" (50mm) of precipitation is accumulated. In Mariemont, during the entire year, the rain falls for 150.9 days and collects up to 27.64" (702mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in August is 13h and 39min.
On the first day of August, sunrise is at 6:38 am and sunset at 8:48 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 8:09 pm EDT.

Sunshine

In August, the average sunshine is 10.2h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 6 in August converts into the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Updated: Jul 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in August?

The high-temperature during August is 83.8°F (28.8°C) and the low-temperature is 64.2°F (17.9°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, is computed to be 91.4°F (33°C).

What are the least humid months?

The months with the lowest humidity are August through October, with an average relative humidity of 74%.

What is the average humidity in August?

In Mariemont, the average relative humidity in August is 74%.

How much does it rain in August?

In Mariemont, in August, it is raining for 13.6 days, with typically 1.97" (50mm) of accumulated precipitation.

When it does not snow?

May through October are months without snowfall.

What is the average length of the day in August?

The average day length in August is 13h and 39min.

What time are sunrise and sunset in August?

On the first day of August, sunrise is at 6:38 am and sunset at 8:48 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 8:09 pm EDT.

How many hours of sunshine does Mariemont have in August?

In Mariemont, the average sunshine duration in August is 10.2h.

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 Mariemont, Ohio, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health threat from 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
Mariemont, OH

Average temperature in August - Mariemont, OH
  • Average high temperature in August: 83.8°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in August: 64.2°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).

Average pressure in August
Mariemont, OH

Average pressure in August - Mariemont, OH
  • Average pressure in August: 29.99"Hg

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in August
Mariemont, OH

Average wind speed in August - Mariemont, OH
  • Average wind speed in August: 5mph

The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in August
Mariemont, OH

Average humidity in August - Mariemont, OH
  • Average humidity in August: 74%

The months with the highest relative humidity are February and December (81%).
The months with the lowest relative humidity are August, September and October (74%).

Average rainfall in August
Mariemont, OH

Average rainfall in August - Mariemont, OH
  • Average rainfall in August: 1.97"

The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is September (1.54").

Average rainfall days in August
Mariemont, OH

Average rainfall days in August - Mariemont, OH
  • Average rainfall days in August: 13.6 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (8.2 days).

Average snowfall in August
Mariemont, OH

Average snowfall in August - Mariemont, OH
  • Average snowfall in August: 0"

The month with the highest snowfall is February (2.01").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Mariemont, OH

Average snowfall days in August - Mariemont, OH
  • Average snowfall days in August: 0 days

The months with the highest number of snowfall days are January and February (5.5 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
Mariemont, OH

Average daylight in August / Average sunshine in August - Mariemont, OH
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
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 July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in August
Mariemont, OH

Average sunshine days in August - Mariemont, OH
  • Average sunshine days in August: 15 days

The months with the most sunshine days are October and November (19.2 days).
The month with the least sunshine days is May (10.9 days).

Average UV index in August
Mariemont, OH

Average UV index in August - Mariemont, OH
  • 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
Mariemont, OH

Average cloud cover in August - Mariemont, OH
  • Average cloud cover in August: 27

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in August
Mariemont, OH

Average visibility in August - Mariemont, OH
  • 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).

Mariemont, Ohio, USA

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