Dayton weather by month & the best time to visit
United States · city break · hot-summer continental climate
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The best time to visit Dayton is September — its sunniest month (Sunshine Score 77/100), with August and July close behind. Dayton averages about 2,149 hours of sunshine a year. Daytime highs around 25°C / 77°F and roughly 77 mm of rain in September.
When is the best time to visit Dayton?
For sunshine, the best time to visit Dayton is September, then August and July. The dullest month is January (0/100, 69 mm of rain). The full month-by-month picture is in the table below.
How sunny is Dayton?
Dayton gets a moderate 2,149 hours of sunshine a year. 77 Sunshine Score points separate September (77) from January (0), so the month you pick matters. It ranks #345 of 580 destinations in United States for annual sunshine, below the national median of 2,279 hours. The year's 1,035 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 0 | 1° / 34°F | -7° / 19°F | 69 mm | 1 |
| February | 0 | 3° / 37°F | -6° / 21°F | 62 mm | 2 |
| March | 6 | 9° / 48°F | -1° / 30°F | 89 mm | 4 |
| April | 55 | 17° / 63°F | 5° / 41°F | 99 mm | 5 |
| May | 71 | 22° / 72°F | 11° / 52°F | 112 mm | 6 |
| June | 71 | 26° / 79°F | 16° / 61°F | 111 mm | 7 |
| July | 74 | 28° / 82°F | 18° / 64°F | 97 mm | 7 |
| August | 76 | 29° / 84°F | 17° / 63°F | 82 mm | 7 |
| September | 77 | 25° / 77°F | 13° / 55°F | 77 mm | 6 |
| October | 64 | 18° / 64°F | 6° / 43°F | 82 mm | 4 |
| November | 13 | 10° / 50°F | 0° / 32°F | 77 mm | 2 |
| December | 0 | 4° / 39°F | -4° / 25°F | 78 mm | 1 |
Nearest destinations
Head-to-head
How Dayton compares month by month: Dayton vs Cincinnati / Covington · Dayton vs Indianapolis · Dayton vs Columbus · Dayton vs Lexington · all comparisons
Dayton: questions and answers
What kind of destination is Dayton?
Dayton is a city break in United States at 304 m elevation with a hot-summer continental climate.
How many hours of sunshine does Dayton get a year?
Dayton gets about 2,149 hours of sunshine a year, at its best around September.
When is the best time to visit Dayton?
The sunniest time to visit Dayton is September, when the Sunshine Score peaks at 77/100 (with August and July close behind). Expect daytime highs around 25°C / 77°F.
What is the least sunny month in Dayton?
January is the least sunny month in Dayton, scoring 0/100 with about 69 mm of rain.
How strong is the sun in Dayton?
The typical midday UV index in Dayton peaks around 7 (high) in June, easing to about 1 (low) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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