May Weather in Windsor, United States

Last updated: June 24, 2025

In Windsor, United States, the average temperature in May hovers around 13°C (56°F). Expect a range from a chilly -1°C (30°F) to a warm 33°C (92°F). During this time, precipitation is likely to total 84 mm (3.3 in) over approximately 13 days, with the air carrying an average humidity of 76%.

May Temperature in Windsor

In May in Windsor, the average temperature is 13°C (56°F). Maximum temperatures can reach 33°C (92°F), while minimum temperatures can drop as low as -1°C (30°F). Be prepared for a wide range of temperatures, making it essential to pack accordingly for your travels.

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 13°C (56°F), with highs reaching up to 33°C (92°F) and lows dropping to around -1°C (30°F).

Data source: Temperature data for Windsor generated using information from the Copernicus Climate Change Service.

May Precipitation in Windsor

In Windsor in May, the precipitation amount is 84 mm (3.3 in) during 13 days, indicating a relatively wet period for that time of year.

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 84 mm (3.3 inches) of precipitation spread over approximately 13 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

May Humidity in Windsor

In Windsor in May humidity is 76%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket enveloping you, making travel a bit uncomfortable as you navigate through the heavy, moisture-laden air.

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 76%, offering insight into how humid the weather typically is during this month.

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 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 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 9, which falls under the very high exposure category.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (21°F)	72 mm (2.8 inches)	89%	moderate
February Weather	-4°C (24°F)	83 mm (3.3 inches)	88%	moderate
March Weather	-1°C (31°F)	71 mm (2.8 inches)	86%	high
April Weather	6°C (44°F)	117 mm (4.6 inches)	84%	very high
May Weather	13°C (56°F)	84 mm (3.3 inches)	76%	very high
June Weather	18°C (65°F)	95 mm (3.8 inches)	72%	very high
July Weather	21°C (70°F)	135 mm (5.3 inches)	66%	very high
August Weather	20°C (68°F)	93 mm (3.7 inches)	64%	very high
September Weather	16°C (61°F)	72 mm (2.8 inches)	72%	high
October Weather	10°C (50°F)	141 mm (5.5 inches)	81%	moderate
November Weather	2°C (35°F)	100 mm (3.9 inches)	87%	moderate
December Weather	-3°C (26°F)	98 mm (3.9 inches)	84%	low