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May Weather in Massena, United States

Last updated: June 24, 2025

In May, the average temperature in Massena, United States hovers around 14°C (57°F). Conditions can vary significantly, with temperatures dipping as low as -2°C (28°F) and soaring to a maximum of 36°C (96°F). Expect a precipitation amount of approximately 110 mm (4.3 in) spread over 13 days, accompanied by a relatively high average humidity of 75%. Prepare accordingly for a month of diverse weather!

May Temperature in Massena

In May in Massena, the average temperature is 14°C (57°F). The maximum can reach 36°C (96°F), while the minimum can be as low as -2°C (28°F). Be prepared for a wide range of temperatures during your travels, so pack accordingly!

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

The chart illustrates May temperature patterns in Massena, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Massena, May typically has an average temperature of 14°C (57°F), with highs reaching up to 36°C (96°F) and lows dropping to around -2°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec192130445766727062503525
Data source: Temperature data for Massena 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 Massena

In Massena in May, the total precipitation amount is 110 mm (4.3 in) over the course of 13 days.

May Precipitation Trends in Massena

The chart displays monthly precipitation patterns in Massena, 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 Massena, May typically receives around 110 mm (4.3 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec83838812011199118977213910585
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Massena

In Massena in May, humidity is 75%. With an average temperature of 14°C (57°F), this humidity feels like a damp blanket enveloping you, making outdoor activities somewhat uncomfortable and travel a bit sluggish, as the air feels heavy and the heat lingers close to your skin.

May Average Humidity in Massena

This chart illustrates the average monthly humidity levels in Massena, 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 Massena is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%93%86%82%75%68%69%67%72%83%88%89%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Massena

In Massena 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 Massena.

Maximum UV Index Levels in Massena for May

The chart shows the monthly maximum UV Index (UVI) for Massena 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 Massena typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245899987532
Data source: Massena 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 Massena Compares to Other Months

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

This table compares monthly weather conditions in Massena, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (19°F)83 mm (3.3 inches)93%low
February Weather-6°C (22°F)83 mm (3.3 inches)93%moderate
March Weather-1°C (30°F)88 mm (3.5 inches)86%moderate
April Weather6°C (44°F)120 mm (4.7 inches)82%very high
May Weather14°C (57°F)110 mm (4.3 inches)75%very high
June Weather19°C (66°F)99 mm (3.9 inches)68%very high
July Weather22°C (72°F)118 mm (4.6 inches)69%very high
August Weather21°C (70°F)97 mm (3.8 inches)67%very high
September Weather17°C (62°F)72 mm (2.8 inches)72%high
October Weather10°C (51°F)139 mm (5.5 inches)83%moderate
November Weather2°C (36°F)105 mm (4.1 inches)88%moderate
December Weather-4°C (26°F)85 mm (3.3 inches)89%low

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