August weather forecast
Mercerville, OH

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Weather in August

The last month of the summer, August, is another warm month in Mercerville, Ohio, with an average temperature fluctuating between 62.6°F (17°C) and 85.3°F (29.6°C).

Temperature

Mercerville's August showcases an average high-temperature of a warm 85.3°F (29.6°C), hardly distinct from July's 86.5°F (30.3°C). August nights indicate a noticeable temperature drop from the daytime highs, with an average reading lowering to a refreshing 62.6°F (17°C).

Heat index

During August, the heat index is calculated to be a torrid 95°F (35°C). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', measures the perceived warmth when incorporating the humidity present in the air. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. 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.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

August is the least humid month in Mercerville, Ohio, with an average relative humidity of 74%.

Rainfall

In Mercerville, during August, the rain falls for 13 days and regularly aggregates up to 1.3" (33mm) of precipitation. Throughout the year, in Mercerville, Ohio, there are 149 rainfall days, and 16.26" (413mm) of precipitation is accumulated.

Snowfall

In Mercerville, snow does not fall in May through September.

Daylight

In Mercerville, the average length of the day in August is 13h and 38min.
On the first day of the month, sunrise is at 6:31 am and sunset at 8:39 pm. On the last day of August, sunrise is at 6:58 am and sunset at 8:00 pm EDT.

Sunshine

The month with the most sunshine in Mercerville is August, with an average of 10.5h of sunshine.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The daily maximum UV index of 6 in August interprets into the following advice:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
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Frequently asked questions

How hot is August in Mercerville?

The average high-temperature, in August, in Mercerville, is 85.3°F (29.6°C), while the average low-temperature is 62.6°F (17°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is calculated to be 95°F (35°C).

What is the least humid month in Mercerville?

With an average relative humidity of 74%, August is the least humid month in Mercerville.

What is the average humidity in August in Mercerville?

The average relative humidity in August in Mercerville is 74%.

How much does it rain in Mercerville in August?

In Mercerville, Ohio, in August, it is raining for 13 days, with typically 1.3" (33mm) of accumulated precipitation.

When it does not snow in Mercerville?

In Mercerville, snow does not fall in May through September.

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

In Mercerville, Ohio, the average day length in August is 13h and 38min.

When are sunrise and sunset in August in Mercerville?

On the first day of August, sunrise is at 6:31 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 8:00 pm EDT.

What month has the most sunshine in Mercerville?

August has the most sunshine of the year in Mercerville, Ohio, with an average of 10.5h of sunshine.

How many hours of sunshine does Mercerville have in August?

In August, the average sunshine duration in Mercerville is 10.5h.

What are the months with the highest UV index in Mercerville?

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

How high is the UV index in August in Mercerville?

The average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Mercerville, OH

Average temperature in August - Mercerville, OH
  • Average high temperature in August: 85.3°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 (37.9°F).

  • Average low temperature in August: 62.6°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure in August
Mercerville, OH

Average pressure in August - Mercerville, OH
  • Average pressure in August: 30.01"Hg

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

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Average wind speed in August
Mercerville, OH

Average wind speed in August - Mercerville, OH
  • Average wind speed in August: 4.4mph

The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

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Average humidity in August
Mercerville, OH

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

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is August (74%).

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Average rainfall in August
Mercerville, OH

Average rainfall in August - Mercerville, OH
  • Average rainfall in August: 1.3"

The wettest month (with the highest rainfall) is May (1.93").
The driest month (with the least rainfall) is November (0.83").

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Average rainfall days in August
Mercerville, OH

Average rainfall days in August - Mercerville, OH
  • Average rainfall days in August: 13 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (8.8 days).

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Average snowfall in August
Mercerville, OH

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

The month with the highest snowfall is February (1.89").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Mercerville, OH

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

The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Mercerville, OH
  • 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 30min).

  • Average sunshine in August: 10h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average sunshine days in August
Mercerville, OH

Average sunshine days in August - Mercerville, OH
  • Average sunshine days in August: 15.3 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (10.3 days).

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Average UV index in August
Mercerville, OH

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

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Average cloud cover in August
Mercerville, OH

Average cloud cover in August - Mercerville, OH
  • Average cloud cover in August: 30

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in August
Mercerville, OH

Average visibility in August - Mercerville, OH
  • 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).

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Mercerville, Ohio, USA

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