nomadseason

May Weather in Rochester, United States

Last updated: June 24, 2025

In May, the average temperature in Rochester, United States is a pleasant 17°C (63°F). However, be prepared for a broad range, as temperatures can dip to a frigid -2°C (29°F) or soar to a sweltering 34°C (94°F). During this month, expect about 155 mm (6.1 in) of precipitation spread over approximately 15 days, contributing to an average humidity of 81%.

May Temperature in Rochester

In May in Rochester, the average temperature is 17°C (63°F), with maximums reaching up to 34°C (94°F) and minimums dropping as low as -2°C (29°F). Be sure to pack for a wide range of temperatures if you're planning to travel during this month!

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

The chart illustrates May temperature patterns in Rochester, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rochester, May typically has an average temperature of 17°C (63°F), with highs reaching up to 34°C (94°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec283041506373767368564134
Data source: Temperature data for Rochester generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Rochester

In Rochester in May, the precipitation amount is 155 mm (6.1 in) over a period of 15 days.

May Precipitation Trends in Rochester

The chart displays monthly precipitation patterns in Rochester, 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 Rochester, May typically receives around 155 mm (6.1 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec757710299155112111104671107965
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Rochester

In Rochester 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 Rochester

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

In Rochester 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 Rochester.

Maximum UV Index Levels in Rochester for May

The chart shows the monthly maximum UV Index (UVI) for Rochester 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 Rochester typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35699101098642
Data source: Rochester 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 Rochester Compares to Other Months

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

This table compares monthly weather conditions in Rochester, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)75 mm (2.9 inches)85%moderate
February Weather-1°C (30°F)77 mm (3.0 inches)85%moderate
March Weather5°C (41°F)102 mm (4.0 inches)86%high
April Weather10°C (50°F)99 mm (3.9 inches)87%very high
May Weather17°C (63°F)155 mm (6.1 inches)81%very high
June Weather23°C (73°F)112 mm (4.4 inches)82%very high
July Weather24°C (76°F)111 mm (4.4 inches)81%very high
August Weather23°C (73°F)104 mm (4.1 inches)79%very high
September Weather20°C (68°F)67 mm (2.6 inches)78%very high
October Weather13°C (56°F)110 mm (4.3 inches)81%high
November Weather5°C (41°F)79 mm (3.1 inches)89%moderate
December Weather1°C (35°F)65 mm (2.5 inches)86%low

Compare Rochester's Climate with Cities Worldwide