Last updated: June 24, 2025
In Clayton, United States, the average temperature for May is a comfortable 13°C (55°F). However, prepare for some variability, as temperatures can dip to a chilly, minimum of -1°C (30°F) and soar as high as a warm 30°C (86°F). Expect 100 mm (3.9 in) of precipitation over approximately 12 days, and don't forget your umbrella, as the average humidity levels sit around 75%.
In May in Clayton, the average temperature is 13°C (55°F). The maximum can reach 30°C (86°F) and the minimum can be as low as -1°C (30°F). This variation makes it advisable to pack layers to accommodate both warm and cooler conditions during your travels.
In Clayton in May, the precipitation amount is 100 mm (3.9 in) over the course of 12 days.
In Clayton in May humidity is 75%. With average temperature 13°C (55°F), this humidity feels like a damp chill that seeps into your bones, making outdoor excursions less enjoyable without layered clothing and frequent breaks to warm up indoors.
In Clayton 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 Clayton.
UV Risk Categories
Weather in Clayton varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Clayton, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -5°C (23°F) | 82 mm (3.2 inches) | 93% | low |
| February Weather | -4°C (25°F) | 80 mm (3.2 inches) | 93% | moderate |
| March Weather | 0°C (32°F) | 83 mm (3.2 inches) | 86% | moderate |
| April Weather | 6°C (43°F) | 127 mm (5.0 inches) | 82% | very high |
| May Weather | 13°C (55°F) | 100 mm (3.9 inches) | 75% | very high |
| June Weather | 18°C (65°F) | 94 mm (3.7 inches) | 68% | very high |
| July Weather | 22°C (72°F) | 131 mm (5.2 inches) | 69% | very high |
| August Weather | 21°C (71°F) | 99 mm (3.9 inches) | 67% | very high |
| September Weather | 17°C (63°F) | 70 mm (2.8 inches) | 72% | high |
| October Weather | 11°C (52°F) | 156 mm (6.1 inches) | 83% | moderate |
| November Weather | 4°C (39°F) | 117 mm (4.6 inches) | 88% | moderate |
| December Weather | -1°C (30°F) | 98 mm (3.8 inches) | 89% | low |