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May Weather in Buffalo, United States

Last updated: June 24, 2025

In May, the average temperature in Buffalo, United States is a pleasant 19°C (66°F). However, temperatures can fluctuate significantly, with a minimum of 1°C (35°F) and a maximum of 33°C (91°F). Expect 144 mm (5.7 in) of precipitation over 15 days, contributing to an average humidity of 82%.

May Temperature in Buffalo

In May in Buffalo, the average temperature is 19°C (66°F). The maximum can reach 33°C (91°F), while the minimum can drop as low as 1°C (35°F). Be prepared for a wide range of temperatures, making it ideal for both outdoor adventures and cozy indoor experiences.

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 19°C (66°F), with highs reaching up to 33°C (91°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec364147566673777571614641
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 144 mm (5.7 in) during 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 144 mm (5.7 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec10114111413214415711711510711577124
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 82%. With an average temperature of 19°C (66°F), this humidity feels like a warm blanket wrapping around you, making it slightly uncomfortable for traveling as you might find yourself constantly seeking shade or a cool breeze.

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 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%88%87%82%84%82%73%74%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 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.
JanFebMarAprMayJunJulAugSepOctNovDec3579101010108753
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 Weather2°C (36°F)101 mm (4.0 inches)88%moderate
February Weather5°C (41°F)141 mm (5.5 inches)88%moderate
March Weather9°C (48°F)114 mm (4.5 inches)88%high
April Weather13°C (56°F)132 mm (5.2 inches)86%very high
May Weather19°C (66°F)144 mm (5.7 inches)82%very high
June Weather23°C (73°F)156 mm (6.2 inches)84%very high
July Weather25°C (78°F)117 mm (4.6 inches)82%very high
August Weather24°C (75°F)115 mm (4.5 inches)73%very high
September Weather21°C (71°F)107 mm (4.2 inches)73%very high
October Weather16°C (61°F)115 mm (4.5 inches)81%high
November Weather8°C (46°F)77 mm (3.0 inches)89%moderate
December Weather5°C (41°F)124 mm (4.9 inches)86%moderate

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