Last updated: June 24, 2025
In Dayton, United States, the average temperature in May hovers around 16°C (62°F), with daily highs reaching up to 36°C (96°F) and lows dropping to 0°C (33°F). Expect about 166 mm (6.5 in) of precipitation over 15 days, contributing to an average humidity of 74%. Prepare for a month that's both warm and wet!
In May in Dayton, the average temperature is 16°C (62°F). Maximums can reach 36°C (96°F), and minimums can drop as low as 0°C (33°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.
In Dayton in May, the total precipitation amount is 166 mm (6.5 in) spread across 15 days.
In Dayton in May, humidity is 74%. With an average temperature of 16°C (62°F), this humidity feels like a warm, heavy blanket enveloping you, making it slightly uncomfortable for traveling as it can lead to a sticky sensation that may sap your energy during outdoor activities.
In Dayton in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Dayton.
UV Risk Categories
Weather in Dayton varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Dayton, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | -6°C (21°F) | 32 mm (1.3 inches) | 82% | moderate |
February Weather | -6°C (21°F) | 42 mm (1.7 inches) | 84% | moderate |
March Weather | 3°C (38°F) | 72 mm (2.8 inches) | 80% | moderate |
April Weather | 9°C (48°F) | 72 mm (2.8 inches) | 81% | very high |
May Weather | 16°C (62°F) | 166 mm (6.5 inches) | 74% | very high |
June Weather | 23°C (74°F) | 109 mm (4.3 inches) | 80% | extreme |
July Weather | 24°C (76°F) | 89 mm (3.5 inches) | 80% | very high |
August Weather | 23°C (73°F) | 95 mm (3.8 inches) | 77% | very high |
September Weather | 20°C (68°F) | 127 mm (5.0 inches) | 75% | very high |
October Weather | 11°C (51°F) | 123 mm (4.8 inches) | 80% | high |
November Weather | 3°C (37°F) | 41 mm (1.6 inches) | 87% | moderate |
December Weather | -2°C (29°F) | 37 mm (1.5 inches) | 83% | moderate |