August weather forecast and climate
Forest Park, OH

The last month of the summer, August, is another warm month in Forest Park, Ohio, with average temperature fluctuating between 64.8°F (18.2°C) and 83.1°F (28.4°C).

Temperature

In Forest Park, the average high-temperature is relatively the same as in July - a still warm 83.1°F (28.4°C). In August, in Forest Park, the average low-temperature is 64.8°F (18.2°C).

Heat index

The average heat index is calculated to a tropical 89.8°F (32.1°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'feels like', or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (wind, differences in body mass, height, and shape, clothing). Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, 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

August through October, with an average relative humidity of 74%, are the least humid months in Forest Park.

Rainfall

In Forest Park, Ohio, in August, during 10.8 rainfall days, 0.91" (23mm) of precipitation is typically accumulated. Throughout the year, there are 121.7 rainfall days, and 12.4" (315mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

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

Sunshine

The average sunshine is 10.2h.

UV index

Months with the highest UV index in Forest Park, Ohio, are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from the exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 6 in August transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in August in Forest Park?

In Forest Park, in August, the average high-temperature is 83.1°F (28.4°C), and the average low-temperature is 64.8°F (18.2°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), that factores the actual air temperature with the relative humidity, is estimated at 89.8°F (32.1°C).

What are the least humid months in Forest Park?

August through October, with an average relative humidity of 74%, are the least humid months in Forest Park, Ohio.

What is the average humidity in August in Forest Park?

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

How many days does it rain in August in Forest Park?

In Forest Park, in August, during 10.8 rainfall days, 0.91" (23mm) of precipitation is typically accumulated.

When it does not snow in Forest Park?

In Forest Park snow does not fall in May through October.

What is the average length of the day in August in Forest Park?

In August, the average length of the day in Forest Park, Ohio, is 13.7h.

How many hours of sunshine does Forest Park have in August?

In August, the average sunshine in Forest Park, Ohio, is 10.2h.

When is the highest UV index in Forest Park?

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

What is the UV index intensity in August in Forest Park?

The average daily maximum UV index in August in Forest Park, Ohio, is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV rays.
Average temperature in August - Forest Park, OH
  • Average high temperature in August: 28.4°C

The warmest month (with the highest average high temperature) is July (28.9°C).
The month with the lowest average high temperature is January (1.8°C).

  • Average low temperature in August: 18.2°C

The month with the highest average low temperature is July (19.1°C).
The coldest month (with the lowest average low temperature) is January (-4.9°C).

Average pressure in August - Forest Park, OH
  • Average pressure in August: 1015.5mbar

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

Average wind speed in August - Forest Park, OH
  • Average wind speed in August: 8.4km/h

The windiest month (with the highest average wind speed) is January (14.3km/h).
The calmest months (with the lowest average wind speed) are July and August (8.4km/h).

Average humidity in August - Forest Park, OH
  • Average humidity in August: 74%

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

Average rainfall in August - Forest Park, OH
  • Average rainfall in August: 23mm

The wettest month (with the highest rainfall) is May (36mm).
The driest month (with the least rainfall) is September (16mm).

Average rainfall days in August - Forest Park, OH
  • Average rainfall days in August: 10.8 days

The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is November (6.5 days).

Average snowfall in August - Forest Park, OH
  • Average snowfall in August: 0mm

The month with the highest snowfall is January (24mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in August - Forest Park, OH
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (6.1 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in August / Average sunshine in August - Forest Park, 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

The month with the most sunshine is July (Average sunshine: 10.4h).
The month with the least sunshine is January (Average sunshine: 4h).

Average sunshine days in August - Forest Park, OH
  • Average sunshine days in August: 18.4 days

The month with the most sunshine days is November (20.8 days).
The month with the least sunshine days is June (14 days).

Average UV index in August - Forest Park, OH
  • Average UV index in August: 6

Months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in August - Forest Park, OH
  • Average cloud cover in August: 26

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 26).

Average visibility in August - Forest Park, 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).