August weather forecast and climate
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

August, the last month of the summer, in Columbus, is also a moderately hot month, with temperature in the range of an average low of 63.9°F (17.7°C) and an average high of 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, Ohio, the average low-temperature is 63.9°F (17.7°C).

Heat index

In August, the average heat index is evaluated at a hot 87.4°F (30.8°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
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 'feels like', 'felt air temperature', 'real feel', or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors like activity, wind, metabolic differences, and clothing 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. 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 August, the average relative humidity in Columbus is 74%.

Rainfall

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

Snowfall

May through September are months without snowfall.

Daylight

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

Sunshine

August has the most sunshine of the year, 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. 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: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. 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. A wide-brim hat offers excellent sun protection for 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?

The average high-temperature, in August, in Columbus, is 82°F (27.8°C), while the average low-temperature is 63.9°F (17.7°C). The average heat index (a.k.a. 'feels like', 'real feel'), that takes the relative humidity and factores it into the air temperature reading, in August is appraised at 87.4°F (30.8°C).

What is the average humidity in August in Columbus?

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

How many days does it rain in August in Columbus?

In August, in Columbus, Ohio, the rain falls for 14.9 days. Throughout August, 2.32" (59mm) of precipitation is accumulated.

When it does not snow in Columbus?

May through September are months without snowfall in Columbus, Ohio.

How many hours of daylight does Columbus have in August?

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

What month has the most sunshine in Columbus?

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

How many hours of sunshine does Columbus have in August?

The average sunshine in August in Columbus is 10.4h.

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

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

What is the UV index reading in August in Columbus?

The average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health threat from unsafe exposure to the Sun's UV rays.

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"

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

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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").
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).
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: 13.7h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in August: 10.4h

The month with the most sunshine is August (Average sunshine: 10.4h).
The month with the least sunshine is January (Average sunshine: 3.5h).

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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

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).

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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

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

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