Best Time to Visit Dayton
Best time: Sep, Jun, Aug, Jul.
Jul is warmest (30.4°C high); May is rainiest (109 mm).
Dayton weather by month
| Month | High °C | Low °C | Rain mm | Sun hrs |
|---|---|---|---|---|
| Jan | 2.2 | -6.9 | 59 | 2.6 |
| Feb | 4.9 | -5.2 | 57 | 4 |
| Mar | 11.1 | -0.2 | 85 | 5.7 |
| Apr | 17.7 | 5 | 98 | 7.4 |
| May | 23.7 | 10.9 | 109 | 8.6 |
| Jun | 28.5 | 16.1 | 93 | 9.5 |
| Jul | 30.4 | 18.3 | 101 | 9.5 |
| Aug | 29.5 | 17.1 | 88 | 8.5 |
| Sep | 26 | 12.9 | 71 | 7 |
| Oct | 19.2 | 6.4 | 69 | 4.9 |
| Nov | 11.5 | 1.3 | 81 | 2.9 |
| Dec | 5.1 | -3.7 | 74 | 2.2 |
Average high temperature
Best months by activity
Overall: SepJunAugJul
Beaches: AugJunSepJul
Hiking: SepOctMayApr
Sightseeing: SepJunAugJul
Dayton quick facts
What to pack
Cold months (Jan, Feb, Mar, Nov, Dec): warm layers and a coat.
Wet months (Apr, May, Jun, Jul): raincoat and umbrella.
Frequently asked questions
When is the best time to visit Dayton?
Sep, Jun, Aug, Jul.
What is the rainiest month?
May, about 109 mm.
What is the warmest month?
Jul, with average highs of 30.4°C.
Where to stay
See Dayton hotels · Book Dayton tours & activities
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Climate data: Open-Meteo Historical (ERA5), 1991–2020 climate normals.
Licensed under CC BY 4.0.
Open-Meteo.