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April Weather in Dayton, United States

Last updated: June 24, 2025

In April, the average temperature in Dayton, United States hovers around 10°C (50°F), with lows dipping to -7°C (20°F) and highs reaching up to 27°C (82°F). Expect rainy days, as precipitation averages 25 mm (1.0 in) over 6 days, paired with an average humidity of 78%.

April Temperature in Dayton

In April in Dayton, the average temperature is 10°C (50°F), with maximums reaching 27°C (82°F) and minimums dropping as low as -7°C (20°F). It's advisable to pack layers to be prepared for both warm days and chilly nights while traveling.

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

The chart illustrates April 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, April typically has an average temperature of 10°C (50°F), with highs reaching up to 27°C (82°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec343541505869777667524334
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.

April Precipitation in Dayton

In Dayton in April, the precipitation amount is 25 mm (1.0 in) spread over 6 days.

April Precipitation Trends in Dayton

The chart displays monthly precipitation patterns in Dayton, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Dayton, April typically receives around 25 mm (1.0 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec73705226266896293049
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Dayton

In Dayton in April humidity is 78%. With an average temperature of 10°C (50°F), this humidity feels like a chilly dampness that can seep into your clothes, making outdoor activities less enjoyable and requiring extra layers to stay warm as you explore the area.

April Average Humidity in Dayton

This chart illustrates the average monthly humidity levels in Dayton, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Dayton is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%87%84%78%64%56%44%34%41%60%81%82%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Dayton

In Dayton in April, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Dayton.

Maximum UV Index Levels in Dayton for April

The chart shows the monthly maximum UV Index (UVI) for Dayton in April, 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 April, the maximum UV index in Dayton typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101112121110754
Data source: Dayton April 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 April 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 April’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 April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)73 mm (2.9 inches)85%moderate
February Weather2°C (36°F)70 mm (2.8 inches)87%high
March Weather5°C (41°F)52 mm (2.1 inches)84%very high
April Weather10°C (50°F)25 mm (1.0 inches)78%very high
May Weather14°C (58°F)26 mm (1.0 inches)64%extreme
June Weather21°C (69°F)6 mm (0.2 inches)56%extreme
July Weather25°C (78°F)8 mm (0.3 inches)44%extreme
August Weather24°C (76°F)9 mm (0.3 inches)34%extreme
September Weather19°C (67°F)6 mm (0.2 inches)41%very high
October Weather11°C (53°F)29 mm (1.1 inches)60%high
November Weather6°C (43°F)30 mm (1.2 inches)81%moderate
December Weather1°C (34°F)49 mm (1.9 inches)82%moderate

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