Dayton weather in July 2025

Expect 86°F daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Dayton in July. Check more long-term weather averages for Dayton in July before you book your next holiday to Ohio in 2025/2026.

  • 86°F maximum daytime temperature in July in Dayton86
    86°F max day temperature
  • 9 hours of sunshine per day
  • 10 days with some rainfall in July in Dayton10
    10 days with some rainfall
  • 64°F minimum night-time temperature in July in Dayton64
    64°F min night temperature
  • 15 hours of daylight per day in July in Dayton15
    15 hours of daylight per day
  • Moderate heat & humidity in July in DaytonM
    Moderate heat & humidity
  • 3.6 inches monthly rainfall in July in Dayton3.6
    3.6 inches of monthly rainfall
  • UV (maximum) index 9 (Very High) in July in Dayton9
    9 (Very High) UV index

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The July weather guide for Ohio (Dayton) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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How hot is it in Dayton in July?

Daytime temperatures usually reach 86°F in Dayton in July with moderate heat and humidity, falling to 64°F at night.

How sunny is it in Dayton in July?

There are normally 9 hours of bright sunshine each day in Dayton in July - that's 64% of daylight hours.

Does it rain in Dayton in July?

There are usually 10 days with some rain in Dayton in July and the average monthly rainfall is 3.6 inches.

Dayton July sunrise & sunset times

Browse the sunrise and sunset times for Dayton in July 2025. Select a month to view Dayton sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st July 2025 05:13 20:09
Wednesday, 16th July 2025 05:22 20:03
Thursday, 31st July 2025 05:35 19:51

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