May Weather in Dundas, United States

Last updated: June 24, 2025

In May, the average temperature in Dundas, United States hovers around 15°C (59°F). It can range from a chilly -1°C (31°F) to a sweltering 36°C (97°F). Expect about 142 mm (5.6 in) of precipitation spread over 13 days, contributing to an average humidity level of 78%.

May Temperature in Dundas

In May in Dundas, the average temperature is 15°C (59°F). The maximum can reach 36°C (97°F), while the minimum can drop as low as -1°C (31°F). Be prepared for a wide range of temperatures when traveling to Dundas during this month.

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

The chart illustrates May temperature patterns in Dundas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dundas, May typically has an average temperature of 15°C (59°F), with highs reaching up to 36°C (97°F) and lows dropping to around -1°C (31°F).

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

May Precipitation in Dundas

In Dundas in May, the precipitation amount is 142 mm (5.6 in) spread over 13 days.

May Precipitation Trends in Dundas

The chart displays monthly precipitation patterns in Dundas, 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 Dundas, May typically receives around 142 mm (5.6 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 Dundas

In Dundas in May, humidity is 78%. With an average temperature of 15°C (59°F), this humidity feels like a warm, enveloping blanket that clings to your skin, making outdoor activities a bit more tiring and requiring frequent breaks for hydration as you explore the area.

May Average Humidity in Dundas

This chart illustrates the average monthly humidity levels in Dundas, 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 Dundas is approximately 78%, 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 Dundas

In Dundas 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 Dundas.

Maximum UV Index Levels in Dundas for May

The chart shows the monthly maximum UV Index (UVI) for Dundas 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 Dundas typically reaches 9, which falls under the very high exposure category.

Data source: Dundas 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 Dundas Compares to Other Months

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

This table compares monthly weather conditions in Dundas, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-8°C (17°F)	34 mm (1.3 inches)	87%	moderate
February Weather	-8°C (17°F)	39 mm (1.5 inches)	90%	moderate
March Weather	1°C (34°F)	63 mm (2.5 inches)	85%	moderate
April Weather	6°C (44°F)	88 mm (3.4 inches)	84%	very high
May Weather	15°C (59°F)	142 mm (5.6 inches)	78%	very high
June Weather	22°C (71°F)	107 mm (4.2 inches)	80%	very high
July Weather	23°C (74°F)	107 mm (4.2 inches)	81%	very high
August Weather	21°C (71°F)	127 mm (5.0 inches)	81%	very high
September Weather	18°C (64°F)	127 mm (5.0 inches)	81%	very high
October Weather	9°C (49°F)	91 mm (3.6 inches)	84%	moderate
November Weather	1°C (34°F)	37 mm (1.5 inches)	88%	moderate
December Weather	-4°C (24°F)	49 mm (1.9 inches)	84%	low