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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 17°C (63°F). However, be prepared for temperature fluctuations, with minimums plunging to -2°C (29°F) and maximums soaring to 35°C (95°F). Rainfall is quite notable, with 165 mm (6.5 in) expected over 15 days, contributing to the region's 81% average humidity.

May Temperature in Buffalo

In May in Buffalo, the average temperature is 17°C (63°F), with maximums that can reach 35°C (95°F) and minimums that can be as low as -2°C (29°F). This diverse temperature range makes Buffalo a unique destination, so travelers should be prepared for both warm and chilly conditions during their visit.

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 17°C (63°F), with highs reaching up to 35°C (95°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec283041506373767469564135
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 total precipitation amount is 165 mm (6.5 in) over a span of 15 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 165 mm (6.5 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec7477103102165109111108661167462
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 81%. With an average temperature of 17°C (63°F), this humidity feels like a warm blanket enveloping you, making travel slightly oppressive and calling for frequent breaks in air-conditioned spaces to recharge and enjoy your journey comfortably.

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 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%86%87%81%82%81%79%78%81%89%86%
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.
JanFebMarAprMayJunJulAugSepOctNovDec35699101098642
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-2°C (28°F)74 mm (2.9 inches)85%moderate
February Weather-1°C (30°F)77 mm (3.0 inches)85%moderate
March Weather5°C (41°F)103 mm (4.0 inches)86%high
April Weather10°C (51°F)102 mm (4.0 inches)87%very high
May Weather17°C (63°F)165 mm (6.5 inches)81%very high
June Weather23°C (74°F)109 mm (4.3 inches)82%very high
July Weather25°C (77°F)111 mm (4.4 inches)81%very high
August Weather23°C (74°F)108 mm (4.2 inches)79%very high
September Weather20°C (69°F)66 mm (2.6 inches)78%very high
October Weather14°C (57°F)116 mm (4.5 inches)81%high
November Weather5°C (41°F)74 mm (2.9 inches)89%moderate
December Weather1°C (35°F)62 mm (2.4 inches)86%low

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