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May Weather in Wilton, United States

Last updated: June 24, 2025

In May, the average temperature in Wilton, United States is a pleasant 23°C (73°F), with a range that can drop to a minimum of 7°C (45°F) and soar up to 35°C (96°F). Expect around 109 mm (4.3 in) of precipitation over 10 days, contributing to an average humidity level of 81%. Whether you’re enjoying the warm days or cozying up during cooler evenings, this month offers a variety of experiences!

May Temperature in Wilton

In May in Wilton, the average temperature is 23°C (73°F). Maximums can reach 35°C (96°F), and minimums can be as low as 7°C (45°F). This diverse temperature range makes Wilton an ideal destination for travelers seeking both warm days and cooler evenings.

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 23°C (73°F), with highs reaching up to 35°C (96°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec485459647378818077685451
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 109 mm (4.3 in) spread over 10 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 109 mm (4.3 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec1071571331441091551111278112986140
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 81%. With an average temperature of 23°C (73°F), this humidity feels like a heavy blanket wrapping around you, making every step feel more laborious while traveling and causing you to constantly seek out shade or a cool breeze for relief.

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 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%82%82%81%77%77%72%73%73%85%88%
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 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, 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 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47810111111119864
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 Weather9°C (48°F)107 mm (4.2 inches)85%moderate
February Weather12°C (54°F)157 mm (6.2 inches)84%high
March Weather15°C (60°F)133 mm (5.2 inches)82%very high
April Weather18°C (64°F)144 mm (5.7 inches)82%very high
May Weather23°C (73°F)109 mm (4.3 inches)81%extreme
June Weather26°C (78°F)155 mm (6.1 inches)77%extreme
July Weather27°C (81°F)111 mm (4.4 inches)77%extreme
August Weather27°C (81°F)127 mm (5.0 inches)72%extreme
September Weather25°C (78°F)81 mm (3.2 inches)73%very high
October Weather20°C (69°F)129 mm (5.1 inches)73%very high
November Weather12°C (54°F)85 mm (3.4 inches)85%high
December Weather10°C (51°F)140 mm (5.5 inches)88%moderate

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