May Weather in Vermont, United States

Last updated: June 24, 2025

In Vermont, United States, the average temperature in May hovers around 18°C (65°F). Temperatures can fluctuate significantly, dipping to a chilly 1°C (33°F) at the lowest and soaring to a sweltering 36°C (97°F) at the highest. Expect a fair amount of rain as well, with 166 mm (6.5 in) of precipitation spread over 16 days. The air tends to feel quite humid, averaging around 78% humidity, making it essential to prepare for both warmth and moisture!

May Temperature in Vermont

In May in Vermont, the average temperature is 18°C (65°F), with maximums reaching 36°C (97°F) and minimums dropping as low as 1°C (33°F). Travelers should be prepared for both warm days and chilly nights, making layered clothing a wise choice.

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

The chart illustrates May temperature patterns in Vermont, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Vermont, May typically has an average temperature of 18°C (65°F), with highs reaching up to 36°C (97°F) and lows dropping to around 1°C (33°F).

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

May Precipitation in Vermont

In Vermont in May, the total precipitation amount is 166 mm (6.5 in) spread over 16 days.

May Precipitation Trends in Vermont

The chart displays monthly precipitation patterns in Vermont, 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 Vermont, May typically receives around 166 mm (6.5 inches) of precipitation spread over approximately 16 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 Vermont

In Vermont in May, humidity is 78%. With an average temperature of 18°C (65°F), this humidity feels like a warm, enveloping blanket, making travel quite muggy and potentially uncomfortable, as it can leave you feeling sticky and fatigued more quickly than usual.

May Average Humidity in Vermont

This chart illustrates the average monthly humidity levels in Vermont, 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 Vermont 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 Vermont

In Vermont 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 Vermont.

Maximum UV Index Levels in Vermont for May

The chart shows the monthly maximum UV Index (UVI) for Vermont 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 Vermont typically reaches 10, which falls under the very high exposure category.

Data source: Vermont 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 Vermont Compares to Other Months

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

This table compares monthly weather conditions in Vermont, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (28°F)	61 mm (2.4 inches)	81%	moderate
February Weather	-1°C (31°F)	67 mm (2.6 inches)	81%	moderate
March Weather	6°C (43°F)	125 mm (4.9 inches)	81%	high
April Weather	11°C (52°F)	104 mm (4.1 inches)	82%	very high
May Weather	18°C (65°F)	166 mm (6.5 inches)	78%	very high
June Weather	24°C (75°F)	132 mm (5.2 inches)	81%	extreme
July Weather	25°C (78°F)	97 mm (3.8 inches)	79%	very high
August Weather	24°C (75°F)	91 mm (3.6 inches)	77%	very high
September Weather	21°C (70°F)	77 mm (3.0 inches)	78%	very high
October Weather	13°C (56°F)	107 mm (4.2 inches)	78%	high
November Weather	5°C (41°F)	58 mm (2.3 inches)	87%	moderate
December Weather	2°C (35°F)	49 mm (1.9 inches)	84%	low