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August Weather in Dayton, United States

Last updated: June 24, 2025

In August, the average temperature in Dayton, United States is a pleasant 22°C (72°F). Expect a minimum of 11°C (52°F) and a maximum soaring to 33°C (92°F). With an average precipitation of 65 mm (2.5 in) across 9 days, and humidity levels at a comfortable 66%, it's a month that beautifully balances warmth and refreshment.

August Temperature in Dayton

In August in Dayton, the average temperature is 22°C (72°F). Maximums can reach 33°C (92°F), while minimums can dip as low as 11°C (52°F). This makes Dayton a pleasant destination for travelers seeking comfortable weather with some warmth during the day and cooler evenings.

August Weather in Dayton: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Dayton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dayton, August typically has an average temperature of 22°C (72°F), with highs reaching up to 33°C (92°F) and lows dropping to around 11°C (52°F).
JanFebMarAprMayJunJulAugSepOctNovDec282935455566727164544132
Data source: Temperature data for Dayton generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Dayton

In Dayton in August, the precipitation amount is 65 mm (2.5 in) over the course of 9 days.

August Precipitation Trends in Dayton

The chart displays monthly precipitation patterns in Dayton, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Dayton, August typically receives around 65 mm (2.5 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec81908112271701206570128107125
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Dayton

In Dayton in August, humidity is 66%. With an average temperature of 22°C (72°F), this humidity feels like walking through a warm, enveloping blanket, making it essential to stay hydrated while exploring the sights and taking regular breaks in shaded areas.

August Average Humidity in Dayton

This chart illustrates the average monthly humidity levels in Dayton, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Dayton is approximately 66%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%82%80%72%72%67%66%71%79%84%81%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Dayton

In Dayton in August, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Dayton.

Maximum UV Index Levels in Dayton for August

The chart shows the monthly maximum UV Index (UVI) for Dayton in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Dayton typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457910987532
Data source: Dayton August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How August Weather in Dayton Compares to Other Months

Weather in Dayton varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Dayton, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Dayton, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)80 mm (3.2 inches)86%low
February Weather-2°C (29°F)90 mm (3.6 inches)84%moderate
March Weather2°C (35°F)81 mm (3.2 inches)82%moderate
April Weather7°C (46°F)122 mm (4.8 inches)80%high
May Weather13°C (56°F)71 mm (2.8 inches)72%very high
June Weather19°C (66°F)70 mm (2.8 inches)72%very high
July Weather22°C (72°F)120 mm (4.7 inches)67%very high
August Weather22°C (72°F)65 mm (2.5 inches)66%very high
September Weather18°C (65°F)70 mm (2.8 inches)71%high
October Weather12°C (54°F)128 mm (5.0 inches)78%moderate
November Weather5°C (42°F)107 mm (4.2 inches)84%moderate
December Weather0°C (33°F)125 mm (4.9 inches)81%low

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