August weather forecast and climate
Clarksville, OH

The last month of the summer, August, is another warm month in Clarksville, Ohio, with average temperature varying between 81.1°F (27.3°C) and 62.6°F (17°C).

Temperature

In August, the average high-temperature is almost the same as in July - a still warm 81.1°F (27.3°C). In August, in Clarksville, the average low-temperature is 62.6°F (17°C).

Heat index

The average heat index in August is appraised at a tropical 86.5°F (30.3°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'felt air temperature', 'real feel', or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like activity, clothing, differences in body mass, height, and shape, and pregnancy affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In August, the average relative humidity is 79%.

Rainfall

In Clarksville, during August, the rain falls for 12.8 days and regularly aggregates up to 1.42" (36mm) of precipitation. In Clarksville, Ohio, during the entire year, the rain falls for 139.1 days and collects up to 16.38" (416mm) of precipitation.

Snowfall

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

Daylight

In August, the average length of the day is 13.7h.

Sunshine

June and August, with an average of 10.2h of sunshine, are months with the most sunshine.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to the UV radiation for the average person.
Note: The average daily UV index of 6 in August transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in August in Clarksville?

In August, in Clarksville, the average high-temperature is 81.1°F (27.3°C), and the average low-temperature is 62.6°F (17°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), that represents influence of the relative humidity to air temperaure, is evaluated at 86.5°F (30.3°C).

What is the average humidity in August in Clarksville?

In Clarksville, the average relative humidity in August is 79%.

How much does it rain in Clarksville in August?

In Clarksville, Ohio, in August, it is raining for 12.8 days, with typically 1.42" (36mm) of accumulated precipitation.

When it does not snow in Clarksville?

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

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

The average length of the day in August is 13.7h.

What are the months with the most sunshine in Clarksville?

Months with the most sunshine in Clarksville, Ohio, are June and August, with an average of 10.2h of sunshine.

How long on average sun shines in August in Clarksville?

In August, the average sunshine is 10.2h.

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

Months with the highest UV index are June through August, with an average maximum UV index of 6.

How high is the UV index in August in Clarksville?

In Clarksville, Ohio, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in August - Clarksville, OH
  • Average high temperature in August: 27.3°C

The warmest month (with the highest average high temperature) is July (27.9°C).
The month with the lowest average high temperature is January (1.4°C).

  • Average low temperature in August: 17°C

The month with the highest average low temperature is July (18.2°C).
The coldest month (with the lowest average low temperature) is January (-5.2°C).

Average pressure in August - Clarksville, OH
  • Average pressure in August: 1015.5mbar

Months with the highest atmospheric pressure are January and November (1020.7mbar).
The month with the lowest atmospheric pressure is June (1013.9mbar).

Average wind speed in August - Clarksville, OH
  • Average wind speed in August: 8.9km/h

The windiest month (with the highest average wind speed) is January (15.7km/h).
The calmest month (with the lowest average wind speed) is August (8.9km/h).

Average humidity in August - Clarksville, OH
  • Average humidity in August: 79%

Months with the highest relative humidity are January, February and December (82%).
The month with the lowest relative humidity is October (75%).

Average rainfall in August - Clarksville, OH
  • Average rainfall in August: 36mm

The wettest month (with the highest rainfall) is July (47mm).
The driest month (with the least rainfall) is September (22mm).

Average rainfall days in August - Clarksville, OH
  • Average rainfall days in August: 12.8 days

The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in August - Clarksville, OH
  • Average snowfall in August: 0mm

The month with the highest snowfall is February (34mm).
Months with the least snowfall are May, June, July, August and September (0mm).

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

The month with the highest number of snowfall days is January (9.2 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August / Average sunshine in August - Clarksville, OH
  • Average daylight in August: 13.7h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in August: 10.2h

Months with the most sunshine are June and August (Average sunshine: 10.2h).
The month with the least sunshine is January (Average sunshine: 3.7h).

Average sunshine days in August - Clarksville, OH
  • Average sunshine days in August: 14.6 days

Months with the most sunshine days are October and November (19 days).
The month with the least sunshine days is July (11.1 days).

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

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

Average cloud cover in August - Clarksville, OH
  • Average cloud cover in August: 28

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in August - Clarksville, OH
  • Average visibility in August: 9km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).