August weather forecast
Marietta, OH

Share

Weather in August

The last month of the summer, August, is also a moderately hot month in Marietta, Ohio, with temperature in the range of an average low of 61.3°F (16.3°C) and an average high of 84.2°F (29°C).

Temperature

Marietta, Ohio, records an average high-temperature of a still warm 84.2°F (29°C) in August, maintaining a close correlation with July's 85.6°F (29.8°C). In the month of August, Marietta witnesses a marked temperature drop at night, averaging a low of 61.3°F (16.3°C).

Heat index

The heat index value for August is appraised at a hot 93.2°F (34°C). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an estimation of the warmth sensation when considering humidity levels. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.

Humidity

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

Rainfall

In Marietta, in August, during 14 rainfall days, 1.73" (44mm) of precipitation is typically accumulated. In Marietta, during the entire year, the rain falls for 156.1 days and collects up to 24.8" (630mm) of precipitation.

Snowfall

In Marietta, Ohio, snow does not fall in May through September.

Daylight

The average length of the day in August is 13h and 40min.
On the first day of August, sunrise is at 6:26 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 7:57 pm EDT.

Sunshine

August has the most sunshine of the year, with an average of 10.1h of sunshine.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Marietta. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum high daily UV index of 6 during August translates into the following directions:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
[Resources]

Frequently asked questions

How hot does it get in Marietta in August?

The average high-temperature, in August, in Marietta, is 84.2°F (29°C), while the average low-temperature is 61.3°F (16.3°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in August is appraised at 93.2°F (34°C).

What is the least humid month in Marietta?

June through August, with an average relative humidity of 76%, are the least humid months in Marietta, Ohio.

What is the average humidity in August in Marietta?

The average relative humidity in August is 76%.

How many days does it rain in August in Marietta?

In Marietta, in August, it is raining for 14 days, with typically 1.73" (44mm) of accumulated precipitation.

When it does not snow in Marietta?

May through September are months without snowfall in Marietta, Ohio.

How many hours of daylight does Marietta have in August?

In August, the average day length in Marietta is 13h and 40min.

When is the sunrise / sunset in August in Marietta?

On the first day of August in Marietta, sunrise is at 6:26 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 7:57 pm EDT.

What month has the most sunshine in Marietta?

With an average of 10.1h of sunshine, August has the most sunshine of the year in Marietta.

How many hours of sunshine does Marietta have in August?

In August, the average sunshine duration in Marietta is 10.1h.

When is the highest UV index in Marietta?

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

What is the UV index reading in August in Marietta?

The average daily maximum UV index in August in Marietta, Ohio, is 6. A UV Index value of 6 to 7 symbolizes a high health risk 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
Marietta, OH

Average temperature in August - Marietta, OH
  • Average high temperature in August: 84.2°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in August: 61.3°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).

[Resources]

Average pressure in August
Marietta, OH

Average pressure in August - Marietta, OH
  • Average pressure in August: 30"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

[Resources]

Average wind speed in August
Marietta, OH

Average wind speed in August - Marietta, OH
  • Average wind speed in August: 4.2mph

The windiest month (with the highest average wind speed) is February (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

[Resources]

Average humidity in August
Marietta, OH

Average humidity in August - Marietta, OH
  • Average humidity in August: 76%

The months with the highest relative humidity are January and February (83%).
The months with the lowest relative humidity are June, July and August (76%).

[Resources]

Average rainfall in August
Marietta, OH

Average rainfall in August - Marietta, OH
  • Average rainfall in August: 1.73"

The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is September (1.46").

[Resources]

Average rainfall days in August
Marietta, OH

Average rainfall days in August - Marietta, OH
  • Average rainfall days in August: 14 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is November (8.4 days).

[Resources]

Average snowfall in August
Marietta, OH

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

The month with the highest snowfall is February (2.8").
The months with the least snowfall are May, June, July, August and September (0").

[Resources]

Average snowfall days in August
Marietta, OH

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

The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

[Resources]

Average daylight in August /
Average sunshine in August
Marietta, OH

Average daylight in August / Average sunshine in August - Marietta, 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 24min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).

[Resources]

Average sunshine days in August
Marietta, OH

Average sunshine days in August - Marietta, OH
  • Average sunshine days in August: 14.3 days

The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is May (9.8 days).

[Resources]

Average UV index in August
Marietta, OH

Average UV index in August - Marietta, OH
  • Average UV index in August: 6

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

[Resources]

Average cloud cover in August
Marietta, OH

Average cloud cover in August - Marietta, OH
  • Average cloud cover in August: 34

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 34).

[Resources]

Average visibility in August
Marietta, OH

Average visibility in August - Marietta, OH
  • Average visibility in August: 5mi

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

[Resources]

Marietta, Ohio, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location