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March Weather in Dayton, United States

Last updated: June 24, 2025

In Dayton, United States, the average temperature in March hovers around 5°C (42°F). Expect a chilly range where temperatures can dip to a minimum of -11°C (12°F) or rise to a comfortable 18°C (65°F). With 71 mm (2.8 in) of precipitation spread over 13 days, it's wise to pack an umbrella! Plus, enjoy a notably humid atmosphere at 86%.

March Temperature in Dayton

In March in Dayton, the average temperature is 5°C (42°F). The maximum can reach 18°C (65°F), while the minimum can drop as low as -11°C (12°F). Be prepared for chilly weather and pack layers to enjoy your travels comfortably.

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

The chart illustrates March 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, March typically has an average temperature of 5°C (42°F), with highs reaching up to 18°C (65°F) and lows dropping to around -11°C (12°F).
JanFebMarAprMayJunJulAugSepOctNovDec353441485765747262494134
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.

March Precipitation in Dayton

In Dayton in March, the total precipitation amount is 71 mm (2.8 in) occurring over the course of 13 days.

March Precipitation Trends in Dayton

The chart displays monthly precipitation patterns in Dayton, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Dayton, March typically receives around 71 mm (2.8 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec671057158543041526577478
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Dayton

In Dayton in March, humidity is 86%. With an average temperature of 5°C (42°F), this humidity feels like a damp chill that penetrates your layers, making outdoor activities quite uncomfortable and prompting you to seek warmth indoors more often.

March Average Humidity in Dayton

This chart illustrates the average monthly humidity levels in Dayton, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Dayton is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%86%86%82%77%79%77%62%60%80%87%86%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Dayton

In Dayton in March, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Dayton, you can refer to this Hourly UV Index in Dayton.

Maximum UV Index Levels in Dayton for March

The chart shows the monthly maximum UV Index (UVI) for Dayton in March, 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 March, the maximum UV index in Dayton typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2467991097532
Data source: Dayton March 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 March 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 March’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 March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (35°F)67 mm (2.7 inches)85%low
February Weather1°C (34°F)105 mm (4.1 inches)86%moderate
March Weather5°C (42°F)71 mm (2.8 inches)86%high
April Weather9°C (48°F)58 mm (2.3 inches)82%high
May Weather14°C (57°F)53 mm (2.1 inches)77%very high
June Weather18°C (65°F)30 mm (1.2 inches)79%very high
July Weather23°C (74°F)4 mm (0.1 inches)77%very high
August Weather22°C (73°F)15 mm (0.6 inches)62%very high
September Weather17°C (63°F)26 mm (1.0 inches)60%high
October Weather10°C (49°F)57 mm (2.3 inches)80%moderate
November Weather5°C (41°F)74 mm (2.9 inches)87%moderate
December Weather1°C (34°F)78 mm (3.1 inches)86%low

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