Last updated: June 24, 2025
In May, the average temperature in Wilton, United States hovers around 13°C (55°F), offering a pleasant climate. However, temperatures can vary dramatically, with a minimum of -5°C (24°F) and a maximum reaching 32°C (90°F). Precipitation is moderate, with an average of 45 mm (1.8 in) spread over 7 days. The average humidity is around 76%, adding a hint of moisture to the air.
In May in Wilton, the average temperature is 13°C (55°F). Maximum temperatures can reach 32°C (90°F), while minimums can drop as low as -5°C (24°F). Be prepared for a wide range of weather conditions when traveling during this time.
In Wilton in May, the precipitation amount is 45 mm (1.8 in) spread over a duration of 7 days.
In Wilton in May humidity is 76%. With an average temperature of 13°C (55°F), this humidity feels like a damp, heavy blanket enveloping you, making it feel cooler than it actually is, which can be quite refreshing for short excursions but may also lead to discomfort during prolonged outdoor activities.
In Wilton in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Wilton.
UV Risk Categories
Weather in Wilton varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Wilton, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -11°C (13°F) | 13 mm (0.5 inches) | 84% | low |
| February Weather | -12°C (11°F) | 17 mm (0.7 inches) | 88% | moderate |
| March Weather | -2°C (28°F) | 26 mm (1.0 inches) | 78% | moderate |
| April Weather | 4°C (39°F) | 28 mm (1.1 inches) | 75% | very high |
| May Weather | 13°C (55°F) | 45 mm (1.8 inches) | 76% | very high |
| June Weather | 20°C (68°F) | 59 mm (2.3 inches) | 79% | very high |
| July Weather | 22°C (72°F) | 65 mm (2.5 inches) | 78% | very high |
| August Weather | 20°C (69°F) | 67 mm (2.6 inches) | 78% | very high |
| September Weather | 15°C (60°F) | 65 mm (2.6 inches) | 69% | high |
| October Weather | 6°C (43°F) | 50 mm (2.0 inches) | 71% | moderate |
| November Weather | -1°C (30°F) | 19 mm (0.8 inches) | 82% | moderate |
| December Weather | -7°C (20°F) | 23 mm (0.9 inches) | 84% | low |