Columbus vs Dayton: which is sunnier?
🇺🇸 United States vs 🇺🇸 United States · 114 km apart · long-term climate normals (NASA POWER, 2001–2020)
Dayton is the sunnier overall: about 2,149 hours of sunshine a year to Columbus's 2,074. Columbus has the higher Sunshine Score in 2 of 12 months; the other 10 are within 2 points.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.
At a glance
| Columbus | Dayton | |
|---|---|---|
| Sunshine hours / year | 2,074 | 2,149 |
| Sunniest month | August (77/100) | September (77/100) |
| Nov–Feb average score | 5/100 | 3/100 |
| Jun–Aug average score | 74/100 | 74/100 |
| Rain / year | 986 mm | 1,035 mm |
| Peak midday UV | 7 (high) | 7 (high) |
Columbus vs Dayton month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Columbus | Dayton | Columbus | Dayton | Columbus | Dayton | |
| January | 0 | 0 | 2° | 1° | 65 | 69 |
| February | 0 | 0 | 3° | 3° | 62 | 62 |
| March | 13 | 6 | 10° | 9° | 85 | 89 |
| April | 55 | 55 | 17° | 17° | 95 | 99 |
| May | 72 | 71 | 22° | 22° | 105 | 112 |
| June | 72 | 71 | 27° | 26° | 104 | 111 |
| July | 74 | 74 | 29° | 28° | 93 | 97 |
| August | 77 | 76 | 29° | 29° | 78 | 82 |
| September | 77 | 77 | 26° | 25° | 77 | 77 |
| October | 64 | 64 | 18° | 18° | 77 | 82 |
| November | 19 | 13 | 11° | 10° | 71 | 77 |
| December | 0 | 0 | 4° | 4° | 74 | 78 |
The sunnier month by month: Jan even · Feb even · Mar Columbus · Apr even · May even · Jun even · Jul even · Aug even · Sep even · Oct even · Nov Columbus · Dec even.
When to pick which
- November–February: too close to call — Columbus averages 5/100, Dayton 3/100. Daytime highs are similar (5°C vs 5°C). See the winter sun ranking.
- March–May: Columbus (average score 47/100 vs 44). Daytime highs are similar (16°C vs 16°C).
- June–August: too close to call — Columbus averages 74/100, Dayton 74/100. Daytime highs are similar (28°C vs 28°C).
- September–October: too close to call — Columbus averages 71/100, Dayton 71/100. Daytime highs are similar (22°C vs 22°C).
Full month-by-month guides: Columbus weather by month · Dayton weather by month · Best time to visit United States.
More comparisons: Columbus vs Cleveland · Columbus vs Akron · Dayton vs Cincinnati / Covington · Dayton vs Indianapolis · Dayton vs Lexington · all head-to-heads