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May Weather in Lowell, United States

Last updated: June 24, 2025

Experience the crisp air of Lowell, United States in May, where the average temperature hovers around 13°C (55°F). Be prepared for a range of temperatures, with minimums dipping to 0°C (33°F) and maximums reaching up to 30°C (86°F). Rainfall is frequent, bringing about 85 mm (3.3 in) of precipitation over 12 days, coupled with an average humidity level of 83%. Whether you’re exploring the sights or enjoying the local culture, make sure to dress in layers to stay comfortable!

May Temperature in Lowell

In May in Lowell, the average temperature is 13°C (55°F). The maximum can reach 30°C (86°F), and the minimum can be as low as 0°C (33°F). This variation makes it an ideal destination for travelers seeking a mix of cool and warm weather.

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

The chart illustrates May temperature patterns in Lowell, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lowell, May typically has an average temperature of 13°C (55°F), with highs reaching up to 30°C (86°F) and lows dropping to around 0°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec403943485561686962514439
Data source: Temperature data for Lowell 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 Lowell

In Lowell in May, the precipitation amount is 85 mm (3.3 in) over a duration of 12 days.

May Precipitation Trends in Lowell

The chart displays monthly precipitation patterns in Lowell, 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 Lowell, May typically receives around 85 mm (3.3 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec189241169175855738101133179216
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Lowell

In Lowell in May humidity is 83%. With an average temperature of 13°C (55°F), this humidity feels like a damp embrace, often leaving travelers feeling slightly sticky and in need of frequent breaks in the shade.

May Average Humidity in Lowell

This chart illustrates the average monthly humidity levels in Lowell, 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 Lowell is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%85%86%83%83%83%78%67%66%77%87%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Lowell

In Lowell 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 Lowell.

Maximum UV Index Levels in Lowell for May

The chart shows the monthly maximum UV Index (UVI) for Lowell 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 Lowell typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec246710101098532
Data source: Lowell 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 Lowell Compares to Other Months

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

This table compares monthly weather conditions in Lowell, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)189 mm (7.4 inches)84%low
February Weather4°C (39°F)241 mm (9.5 inches)85%moderate
March Weather6°C (43°F)169 mm (6.6 inches)86%high
April Weather9°C (49°F)175 mm (6.9 inches)83%high
May Weather13°C (55°F)85 mm (3.3 inches)83%very high
June Weather16°C (62°F)57 mm (2.2 inches)83%very high
July Weather20°C (68°F)3 mm (0.1 inches)78%very high
August Weather20°C (69°F)8 mm (0.3 inches)67%very high
September Weather17°C (62°F)101 mm (4.0 inches)66%very high
October Weather11°C (51°F)133 mm (5.2 inches)77%moderate
November Weather7°C (45°F)179 mm (7.1 inches)87%moderate
December Weather4°C (40°F)216 mm (8.5 inches)87%low

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