May Weather in Buffalo, United States

Last updated: June 24, 2025

In Buffalo, United States, the average temperature in May hovers around 7°C (45°F), with minimums plunging to -9°C (16°F) and highs reaching up to 26°C (79°F). Expect 149 mm (5.9 in) of precipitation spread over 22 days, contributing to an average humidity of 75%.

May Temperature in Buffalo

In May in Buffalo, the average temperature is 7°C (45°F). Maximums can reach 26°C (79°F), while minimums can drop as low as -9°C (16°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates May temperature patterns in Buffalo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Buffalo, May typically has an average temperature of 7°C (45°F), with highs reaching up to 26°C (79°F) and lows dropping to around -9°C (16°F).

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

May Precipitation in Buffalo

In Buffalo in May, the precipitation amount is 149 mm (5.9 in) spread over 22 days.

May Precipitation Trends in Buffalo

The chart displays monthly precipitation patterns in Buffalo, 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 Buffalo, May typically receives around 149 mm (5.9 inches) of precipitation spread over approximately 22 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 Buffalo

In Buffalo in May, humidity is 75%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and requiring you to bundle up, while the heavy air can leave you feeling sluggish as you navigate the surroundings.

May Average Humidity in Buffalo

This chart illustrates the average monthly humidity levels in Buffalo, 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 Buffalo is approximately 75%, 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 Buffalo

In Buffalo 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 Buffalo.

Maximum UV Index Levels in Buffalo for May

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

Data source: Buffalo 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 Buffalo Compares to Other Months

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

This table compares monthly weather conditions in Buffalo, 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 (22°F)	24 mm (1.0 inches)	78%	moderate
February Weather	-8°C (18°F)	51 mm (2.0 inches)	79%	moderate
March Weather	-1°C (31°F)	66 mm (2.6 inches)	71%	high
April Weather	1°C (34°F)	95 mm (3.7 inches)	70%	very high
May Weather	7°C (45°F)	149 mm (5.9 inches)	75%	very high
June Weather	14°C (58°F)	127 mm (5.0 inches)	82%	extreme
July Weather	18°C (65°F)	140 mm (5.5 inches)	84%	extreme
August Weather	17°C (62°F)	119 mm (4.7 inches)	85%	very high
September Weather	12°C (54°F)	75 mm (3.0 inches)	79%	very high
October Weather	3°C (37°F)	80 mm (3.2 inches)	75%	high
November Weather	-2°C (29°F)	44 mm (1.7 inches)	75%	moderate
December Weather	-5°C (24°F)	30 mm (1.2 inches)	81%	low