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May Weather in Buffalo, United States

Last updated: June 24, 2025

In May, the average temperature in Buffalo, United States hovers around 12°C (54°F). Expect a minimum of -3°C (27°F) and a potentially sweltering maximum of 32°C (90°F). With an average humidity of 76%, visitors can also anticipate 77 mm (3.0 in) of precipitation spread over 11 days. Be prepared for varied weather conditions!

May Temperature in Buffalo

In May in Buffalo, the average temperature is 12°C (54°F). Maximums can reach 32°C (90°F), while minimums can drop to as low as -3°C (27°F). Be prepared for a wide range of temperatures if you plan to travel during this time.

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 12°C (54°F), with highs reaching up to 32°C (90°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec221833415468747061443527
Data source: Temperature data for Buffalo 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 Buffalo

In Buffalo in May, the precipitation amount is 77 mm (3.0 in) over the course of 11 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 77 mm (3.0 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec112028587745664042501320
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Buffalo

In Buffalo in May, humidity is 76%. With an average temperature of 12°C (54°F), this humidity feels like a heavy blanket enveloping you, making outdoor activities a bit uncomfortable and requiring frequent hydration while exploring.

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 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%80%70%70%76%84%85%85%77%73%74%79%
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 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 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 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24599101098532
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.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (22°F)11 mm (0.4 inches)77%low
February Weather-8°C (18°F)20 mm (0.8 inches)80%moderate
March Weather1°C (33°F)28 mm (1.1 inches)70%moderate
April Weather5°C (41°F)58 mm (2.3 inches)70%very high
May Weather12°C (54°F)77 mm (3.0 inches)76%very high
June Weather20°C (68°F)45 mm (1.8 inches)84%very high
July Weather23°C (74°F)66 mm (2.6 inches)85%very high
August Weather21°C (71°F)40 mm (1.6 inches)84%very high
September Weather16°C (62°F)42 mm (1.6 inches)77%very high
October Weather7°C (44°F)50 mm (2.0 inches)73%moderate
November Weather1°C (35°F)13 mm (0.5 inches)74%moderate
December Weather-3°C (28°F)20 mm (0.8 inches)79%low

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