Dayton Weather Year-Round — Best Time to Visit
Dayton, United States has mild weather year-round. The best time to visit is September (score: 87/100). Annual average high: 16.6°C, total rainfall: 1044mm.
When is the best time to visit Dayton?
87
September is the best month to visit Dayton with a travel score of 87/100 (Excellent).
Expect highs of 24.7°C, 8 rain days, and 9.8 hours of daily sunshine.
View September weather details →Travel Score by Month
44
Jan
50
Feb
58
Mar
68
Apr
76
May
81
Jun
82
Jul
85
Aug
87
Sep
73
Oct
59
Nov
46
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in Dayton each month?
16.6°C
Avg High
7.5°C
Avg Low
1044mm
Annual Rain
How much rain does Dayton get?
Dayton receives 1044mm of rain annually. The wettest month is typically May with 116mm, while September is the driest.
What is the weather like each month in Dayton?
January
44
3°C
Low: -5°C
9 rain days
Mixed
February
50
5°C
Low: -4°C
9 rain days
Mixed
March
58
11°C
Low: 1°C
11 rain days
Mixed
April
68
17°C
Low: 6°C
12 rain days
Good
May
76
22°C
Low: 12°C
13 rain days
Good
June
81
27°C
Low: 17°C
12 rain days
Excellent
July
82
29°C
Low: 19°C
11 rain days
Excellent
August
85
28°C
Low: 19°C
10 rain days
Excellent
September
Best time to visit87
25°C
Low: 15°C
8 rain days
Excellent
October
73
18°C
Low: 9°C
8 rain days
Good
November
59
11°C
Low: 3°C
8 rain days
Mixed
December
46
5°C
Low: -2°C
10 rain days
Mixed
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What cities are near Dayton?
Data based on 1994–2024 averages · Last updated: 2024-12-31