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May Weather in Wilton, United States

Last updated: June 24, 2025

In May, the average temperature in Wilton, United States hovers around 15°C (60°F), offering a mild climate. However, temperatures can vary significantly, with a minimum low of 1°C (34°F) and a scorching maximum reaching up to 33°C (92°F). Expect a moderate level of precipitation, averaging 112 mm (4.4 in) spread over 13 days. With an average humidity of 69%, the atmosphere can feel quite refreshing, making it a unique experience for visitors.

May Temperature in Wilton

In May in Wilton, the average temperature is 15°C (60°F), with maximums reaching up to 33°C (92°F) and minimums dropping as low as 1°C (34°F). This makes it an ideal time for travelers to experience a diverse range of weather conditions, so be sure to pack for both warm and cool temperatures.

May Weather in Wilton: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Wilton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Wilton, May typically has an average temperature of 15°C (60°F), with highs reaching up to 33°C (92°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec323440506070767468584536
Data source: Temperature data for Wilton generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Wilton

In Wilton in May, the precipitation amount is 112 mm (4.4 in) over the course of 13 days.

May Precipitation Trends in Wilton

The chart displays monthly precipitation patterns in Wilton, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Wilton, May typically receives around 112 mm (4.4 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec69102921201129412911010614092114
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Wilton

In Wilton in May, humidity is 69%. With an average temperature of 15°C (60°F), this humidity feels like a cool, damp embrace that can make outdoor activities feel slightly heavier and more exhausting, but still inviting for exploring the charming sights and sounds of the area.

May Average Humidity in Wilton

This chart illustrates the average monthly humidity levels in Wilton, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Wilton is approximately 69%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%81%78%70%69%62%65%68%74%82%80%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Wilton

In Wilton in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Wilton.

Maximum UV Index Levels in Wilton for May

The chart shows the monthly maximum UV Index (UVI) for Wilton in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in Wilton typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35681010998642
Data source: Wilton May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How May Weather in Wilton Compares to Other Months

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.

This table compares monthly weather conditions in Wilton, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)69 mm (2.7 inches)84%moderate
February Weather1°C (35°F)102 mm (4.0 inches)82%moderate
March Weather4°C (40°F)92 mm (3.6 inches)81%high
April Weather10°C (50°F)120 mm (4.7 inches)78%very high
May Weather15°C (60°F)112 mm (4.4 inches)69%very high
June Weather21°C (70°F)94 mm (3.7 inches)69%very high
July Weather24°C (76°F)129 mm (5.1 inches)62%very high
August Weather23°C (75°F)110 mm (4.3 inches)65%very high
September Weather20°C (68°F)106 mm (4.2 inches)68%very high
October Weather14°C (58°F)139 mm (5.5 inches)74%high
November Weather7°C (45°F)92 mm (3.6 inches)82%moderate
December Weather2°C (37°F)114 mm (4.5 inches)80%low

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