August weather forecast
Columbus, OH

An evening autumn view of the cityscape of Columbus, Ohio
An evening autumn view of the cityscape of Columbus, Ohio

Weather in August

The last month of the summer, August, is another warm month in Columbus, Ohio, with an average temperature fluctuating between 63.9°F (17.7°C) and 82°F (27.8°C).

Temperature

In August, the average high-temperature is almost the same as in July - a still moderately hot 82°F (27.8°C). In Columbus, the average low-temperature is 63.9°F (17.7°C).

Heat index

The average heat index in August is appraised at a hot 87.4°F (30.8°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'real feel', 'apparent temperature', or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (metabolic differences, clothing, differences in body mass, height, and shape), and activity. Be aware that direct exposure to sunlight increases heat impact and may raise the 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 Columbus, the average relative humidity in August is 74%.

Rainfall

In August, the rain falls for 14.9 days. Throughout August, 2.32" (59mm) of precipitation is accumulated. In Columbus, during the entire year, the rain falls for 164.3 days and collects up to 30.55" (776mm) of precipitation.

Snowfall

May through September are months without snowfall in Columbus.

Daylight

In Columbus, the average length of the day in August is 13h and 42min.
On the first day of August in Columbus, Ohio, sunrise is at 6:30 am and sunset at 8:45 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 8:05 pm EDT.

Sunshine

The month with the most sunshine in Columbus is August, with an average of 10.4h of sunshine.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Columbus. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
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. 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. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in August in Columbus?

In Columbus, Ohio, in August, the average high-temperature is 82°F (27.8°C), and the average low-temperature is 63.9°F (17.7°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, in August is appraised at 87.4°F (30.8°C).

What is the average humidity in August in Columbus?

In August, the average relative humidity is 74%.

How many days does it rain in August in Columbus?

In Columbus, Ohio, in August, during 14.9 rainfall days, 2.32" (59mm) of precipitation is typically accumulated.

When it does not snow in Columbus?

May through September are months without snowfall in Columbus.

How many hours of daylight does Columbus have in August?

The average day length in August in Columbus is 13h and 42min.

What time are sunrise and sunset in August in Columbus?

On the first day of August in Columbus, sunrise is at 6:30 am and sunset at 8:45 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 8:05 pm EDT.

What month has the most sunshine in Columbus?

With an average of 10.4h of sunshine, August has the most sunshine of the year.

How many hours of sunshine does Columbus have in August?

In Columbus, the average sunshine duration in August is 10.4h.

When is the highest UV index in Columbus?

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

How high is the UV index in August in Columbus?

In Columbus, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Columbus, OH

Average temperature in August - Columbus, OH
  • Average high temperature in August: 82°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in August: 63.9°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

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Average pressure in August
Columbus, OH

Average pressure in August - Columbus, OH
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in August
Columbus, OH

Average wind speed in August - Columbus, OH
  • Average wind speed in August: 5.5mph

The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity in August
Columbus, OH

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

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in August
Columbus, OH

Average rainfall in August - Columbus, OH
  • Average rainfall in August: 2.32"

The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is September (1.69").

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Average rainfall days in August
Columbus, OH

Average rainfall days in August - Columbus, OH
  • Average rainfall days in August: 14.9 days

The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is February (9.1 days).

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Average snowfall in August
Columbus, OH

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

The month with the highest snowfall is February (3.31").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Columbus, OH

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

The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Columbus, OH
  • Average daylight in August: 13h and 42min

The month with the longest days is June (Average daylight: 14h and 58min).
The month with the shortest days is December (Average daylight: 9h and 23min).

  • Average sunshine in August: 10h and 24min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days in August
Columbus, OH

Average sunshine days in August - Columbus, OH
  • Average sunshine days in August: 12.8 days

The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is May (10.1 days).

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Average UV index in August
Columbus, OH

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

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Average cloud cover in August
Columbus, OH

Average cloud cover in August - Columbus, OH
  • Average cloud cover in August: 29

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in August
Columbus, OH

Average visibility in August - Columbus, OH
  • Average visibility in August: 6mi

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

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