August weather forecast and climate
Centerville, OH

The last month of the summer, August, is another warm month in Centerville, Ohio, with average temperature fluctuating between 62.8°F (17.1°C) and 81.1°F (27.3°C).

Temperature

In August, the average high-temperature is essentially the same as in July - a still warm 81.1°F (27.3°C). In August, in Centerville, Ohio, the average low-temperature is 62.8°F (17.1°C).

Heat index

The average heat index is appraised at a hot 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 'apparent temperature', 'real feel', 'felt air temperature', or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (pregnancy, clothing, wind). 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 especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

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

Rainfall

In Centerville, during August, the rain falls for 12.9 days and regularly aggregates up to 1.57" (40mm) of precipitation. Throughout the year, there are 139.3 rainfall days, and 19.92" (506mm) of precipitation is accumulated.

Snowfall

In Centerville snow does not fall in May through September.

Daylight

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

Sunshine

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

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Centerville. A UV Index value of 6 to 7 symbolizes a high health risk from the exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 6 in August interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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 Centerville?

The average high-temperature, in August, is 81.1°F (27.3°C), while the average low-temperature is 62.8°F (17.1°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), that combines both air temperature and relative humidity, is evaluated at 86.5°F (30.3°C).

What is the average humidity in August in Centerville?

The average relative humidity in August is 79%.

How much does it rain in Centerville in August?

In Centerville, in August, it is raining for 12.9 days, with typically 1.57" (40mm) of accumulated precipitation.

When it does not snow in Centerville?

May through September are months without snowfall in Centerville.

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

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

What are the months with the most sunshine in Centerville?

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

How long on average sun shines in August in Centerville?

The average sunshine in August in Centerville, Ohio, is 10.2h.

What is the month with the highest UV index in Centerville?

Months with the highest UV index in Centerville, Ohio, are May through August, with an average maximum UV index of 6.

How high is the UV index in August in Centerville?

The average daily maximum UV index in August in Centerville, Ohio, is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in August - Centerville, OH
  • Average high temperature in August: 27.3°C

The warmest month (with the highest average high temperature) is July (27.5°C).
The month with the lowest average high temperature is January (1.1°C).

  • Average low temperature in August: 17.1°C

The month with the highest average low temperature is July (18.3°C).
The coldest month (with the lowest average low temperature) is January (-5.5°C).

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

The month with the highest atmospheric pressure is November (1020.6mbar).
The month with the lowest atmospheric pressure is June (1013.8mbar).

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

The windiest month (with the highest average wind speed) is January (15.8km/h).
The calmest month (with the lowest average wind speed) is August (8.9km/h).

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

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (74%).

Average rainfall in August - Centerville, OH
  • Average rainfall in August: 40mm

The wettest month (with the highest rainfall) is May (67mm).
The driest month (with the least rainfall) is October (30mm).

Average rainfall days in August - Centerville, OH
  • Average rainfall days in August: 12.9 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (7.4 days).

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

The month with the highest snowfall is February (45mm).
Months with the least snowfall are May, June, July, August and September (0mm).

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

The month with the highest number of snowfall days is January (8.5 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in August / Average sunshine in August - Centerville, 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 - Centerville, OH
  • Average sunshine days in August: 15.1 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is May (12 days).

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

Months with the highest UV index are May, 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 - Centerville, 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 - Centerville, 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).