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May Weather in Windsor, United States

Last updated: June 24, 2025

In May, the average temperature in Windsor, United States is a comfortable 21°C (70°F). However, temperatures can vary significantly, dipping as low as 4°C (40°F) and soaring up to 36°C (98°F). This month typically sees about 114 mm (4.5 in) of precipitation spread over 11 days, contributing to an average humidity level of 81%.

May Temperature in Windsor

In May in Windsor, the average temperature is 21°C (70°F). Maximums can reach up to 36°C (98°F), while minimums can drop as low as 4°C (40°F). This varying climate makes Windsor an ideal destination for travelers seeking both warm days and cooler evenings.

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

The chart illustrates May temperature patterns in Windsor, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Windsor, May typically has an average temperature of 21°C (70°F), with highs reaching up to 36°C (98°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec444953627076807975665348
Data source: Temperature data for Windsor 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 Windsor

In Windsor in May, the total precipitation amount is 114 mm (4.5 in) spread over 11 days.

May Precipitation Trends in Windsor

The chart displays monthly precipitation patterns in Windsor, 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 Windsor, May typically receives around 114 mm (4.5 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec95906999114147137171119768998
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Windsor

In Windsor in May, humidity is 81%. With an average temperature of 21°C (70°F), this humidity feels like a warm, sticky embrace, making outdoor activities slightly uncomfortable and necessitating frequent breaks in the shade or air conditioning for a refreshing escape.

May Average Humidity in Windsor

This chart illustrates the average monthly humidity levels in Windsor, 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 Windsor is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%81%80%80%81%82%83%83%80%80%83%84%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Windsor

In Windsor 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 Windsor.

Maximum UV Index Levels in Windsor for May

The chart shows the monthly maximum UV Index (UVI) for Windsor 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 Windsor typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109853
Data source: Windsor 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 Windsor Compares to Other Months

Weather in Windsor varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Windsor, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Windsor, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (44°F)95 mm (3.7 inches)84%moderate
February Weather10°C (49°F)90 mm (3.5 inches)81%high
March Weather11°C (53°F)69 mm (2.7 inches)80%very high
April Weather17°C (62°F)99 mm (3.9 inches)80%very high
May Weather21°C (70°F)114 mm (4.5 inches)81%extreme
June Weather24°C (76°F)147 mm (5.8 inches)82%extreme
July Weather27°C (80°F)137 mm (5.4 inches)83%extreme
August Weather26°C (79°F)171 mm (6.7 inches)82%very high
September Weather24°C (75°F)119 mm (4.7 inches)80%very high
October Weather19°C (66°F)76 mm (3.0 inches)79%very high
November Weather12°C (53°F)89 mm (3.5 inches)83%moderate
December Weather9°C (48°F)98 mm (3.8 inches)84%moderate

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