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May Weather in Andover, United States

Last updated: June 24, 2025

In May, the average temperature in Andover, United States hovers around 10°C (50°F). Expect a minimum chill of -1°C (30°F) and occasional peaks reaching up to 28°C (83°F). Rainfall adds to the experience, with an average precipitation of 84 mm (3.3 in) spread over 10 days, while the atmosphere maintains a 78% humidity level, giving the month its distinctive feel.

May Temperature in Andover

In May in Andover, the average temperature is 10°C (50°F), with maximums reaching up to 28°C (83°F) and minimums dropping as low as -1°C (30°F). This makes it a great time to experience a variety of weather, so be sure to pack accordingly for your travels!

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

The chart illustrates May temperature patterns in Andover, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Andover, May typically has an average temperature of 10°C (50°F), with highs reaching up to 28°C (83°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec161926375060666558463221
Data source: Temperature data for Andover 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 Andover

In Andover in May, the precipitation amount is 84 mm (3.3 in) over a span of 10 days.

May Precipitation Trends in Andover

The chart displays monthly precipitation patterns in Andover, 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 Andover, May typically receives around 84 mm (3.3 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec81837111384881159463119101101
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Andover

In Andover in May humidity is 78%. With an average temperature of 10°C (50°F), this humidity feels like a chilly dampness that can seep into your clothes, making outdoor activities less enjoyable and requiring extra layers to stay warm as you explore the area.

May Average Humidity in Andover

This chart illustrates the average monthly humidity levels in Andover, 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 Andover is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%85%84%78%72%75%74%77%85%86%85%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Andover

In Andover 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 Andover.

Maximum UV Index Levels in Andover for May

The chart shows the monthly maximum UV Index (UVI) for Andover 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 Andover typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2468910997532
Data source: Andover 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 Andover Compares to Other Months

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

This table compares monthly weather conditions in Andover, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (16°F)81 mm (3.2 inches)91%low
February Weather-7°C (19°F)83 mm (3.3 inches)89%moderate
March Weather-4°C (26°F)71 mm (2.8 inches)85%high
April Weather3°C (38°F)113 mm (4.5 inches)84%very high
May Weather10°C (50°F)84 mm (3.3 inches)78%very high
June Weather16°C (61°F)88 mm (3.5 inches)72%very high
July Weather19°C (67°F)115 mm (4.5 inches)75%very high
August Weather18°C (65°F)94 mm (3.7 inches)74%very high
September Weather14°C (58°F)63 mm (2.5 inches)77%high
October Weather8°C (47°F)119 mm (4.7 inches)85%moderate
November Weather0°C (32°F)101 mm (4.0 inches)86%moderate
December Weather-6°C (21°F)101 mm (4.0 inches)85%low

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