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May Weather in North Boston, United States

Last updated: June 24, 2025

In North Boston, United States, the average temperature in May hovers around 14°C (58°F), with a potential minimum of -2°C (29°F) and a maximum reaching up to 32°C (89°F). Expect a precipitation amount of 107 mm (4.2 in) spread over 14 days, resulting in an average humidity of 82%. Adjust your plans accordingly for this varied climate!

May Temperature in North Boston

In May in North Boston, the average temperature is 14°C (58°F). Maximums can reach 32°C (89°F), while minimums can dip as low as -2°C (29°F). This variation in temperature makes it essential for travelers to pack accordingly, ensuring they are prepared for both warm and chilly conditions.

May Weather in North Boston: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in North Boston, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In North Boston, May typically has an average temperature of 14°C (58°F), with highs reaching up to 32°C (89°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec272935455866727064543932
Data source: Temperature data for North Boston 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 North Boston

In North Boston in May, the precipitation amount is 107 mm (4.2 in) spread over a period of 14 days.

May Precipitation Trends in North Boston

The chart displays monthly precipitation patterns in North Boston, 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 North Boston, May typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec87908011910789127857613499105
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in North Boston

In North Boston in May, humidity is 82%. With an average temperature of 14°C (58°F), this humidity feels like a heavy blanket wrapping around you, making travel uncomfortable and sticky.

May Average Humidity in North Boston

This chart illustrates the average monthly humidity levels in North Boston, 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 North Boston is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%91%88%88%82%80%77%72%76%83%88%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in North Boston

In North Boston 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 North Boston.

Maximum UV Index Levels in North Boston for May

The chart shows the monthly maximum UV Index (UVI) for North Boston 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 North Boston typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689101098642
Data source: North Boston 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 North Boston Compares to Other Months

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

This table compares monthly weather conditions in North Boston, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)87 mm (3.4 inches)91%moderate
February Weather-2°C (29°F)90 mm (3.5 inches)91%moderate
March Weather2°C (35°F)80 mm (3.2 inches)88%high
April Weather7°C (45°F)119 mm (4.7 inches)88%very high
May Weather14°C (58°F)107 mm (4.2 inches)82%very high
June Weather19°C (67°F)89 mm (3.5 inches)79%very high
July Weather22°C (72°F)127 mm (5.0 inches)77%very high
August Weather21°C (70°F)85 mm (3.3 inches)72%very high
September Weather18°C (64°F)76 mm (3.0 inches)76%very high
October Weather12°C (54°F)134 mm (5.3 inches)83%high
November Weather4°C (40°F)99 mm (3.9 inches)88%moderate
December Weather0°C (33°F)105 mm (4.1 inches)87%low

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