Tomorrow in Dayton looks
sunny, with a high of 50°
and an overnight low of 34°.
Rain is unlikely (9% chance).
Winds top out near 3 mph,
and the UV index reaches 2 (low).
Average conditions span from January lows near 24°F (-5°C) to July highs around 84°F (29°C). That 34°C (60°F) spread makes the time of year especially important.
Seasonal change
July highs reach 84°F (29°C), while January lows fall to 24°F (-5°C).
Typical day and night
Dayton averages 63°F (17°C) by day and 46°F (8°C) at night across the year.
Rain and sunshine
About 1134 mm (44.6 inches) falls across 131 wet days, with 8.5 hours of sunshine on an average day.
Aim for August to October and April if you get the choice: warm days, manageable rainfall and plenty of daylight line up, and highs average 72°F (22°C) against roughly 10 wet days a month. For the same question asked the other way round, see where else is warm in August.
What is the hottest month in Dayton?
July, averaging 84°F (29°C) by day and 67°F (20°C) overnight. The hottest single day in our 2015-2024 record for this location reached 95°F (35°C).
Is there snow in Dayton?
Yes - about 12 days a year carry measurable snowfall, concentrated November through April.
When is Dayton at its coldest?
January, with highs of 38°F (3°C) and lows near 24°F (-5°C). The coldest day in the 2015-2024 record fell to -17°F (-27°C).
How often does it rain in Dayton?
About 131 days bring measurable precipitation, totalling 44.6 inches (1134 mm). That works out at roughly 8.7 mm on an average wet day.
What is the rainiest month in Dayton?
May, at 4.6 inches (117 mm) over about 14 days. September is the driest month, at 2.9 inches (73 mm).
What is the average temperature in Dayton?
54°F (12°C) across all twelve months - about 63°F (17°C) by day and 46°F (8°C) after dark.