May Weather in Andover, United States

Last updated: June 24, 2025

In May, the average temperature in Andover, United States hovers around 17°C (63°F). You can expect temperature shifts, with a minimum dipping to -1°C (31°F) and soaring to a maximum of 35°C (95°F). Rainfall is fairly common, with 157 mm (6.2 in) of precipitation spread across 15 days. The average humidity sits at a comfortable 78%, making it a month of diverse weather experiences.

May Temperature in Andover

In May in Andover, the average temperature is 17°C (63°F). Maximum temperatures can reach 35°C (95°F) and minimums can drop to as low as -1°C (31°F). Be prepared for a wide range of weather conditions if you're planning to travel during this time.

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 17°C (63°F), with highs reaching up to 35°C (95°F) and lows dropping to around -1°C (31°F).

Data source: Temperature data for Andover generated using information from the Copernicus Climate Change Service.

May Precipitation in Andover

In Andover in May, the precipitation amount is 157 mm (6.2 in) over a period of 15 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 157 mm (6.2 inches) of precipitation spread over approximately 15 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

May Humidity in Andover

In Andover in May, humidity is 78%. With an average temperature of 17°C (63°F), this humidity feels like a warm, enveloping blanket, making traveling slightly uncomfortable as you navigate the sticky air, prompting the need for frequent breaks in cooler, shaded areas.

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.

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.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (25°F)	56 mm (2.2 inches)	81%	moderate
February Weather	-3°C (27°F)	63 mm (2.5 inches)	81%	moderate
March Weather	5°C (41°F)	100 mm (3.9 inches)	81%	high
April Weather	10°C (50°F)	113 mm (4.5 inches)	82%	very high
May Weather	17°C (63°F)	157 mm (6.2 inches)	78%	very high
June Weather	23°C (74°F)	143 mm (5.6 inches)	81%	extreme
July Weather	25°C (77°F)	100 mm (3.9 inches)	79%	very high
August Weather	23°C (74°F)	70 mm (2.7 inches)	77%	very high
September Weather	20°C (69°F)	103 mm (4.1 inches)	78%	very high
October Weather	12°C (55°F)	127 mm (5.0 inches)	78%	high
November Weather	4°C (39°F)	52 mm (2.0 inches)	87%	moderate
December Weather	0°C (33°F)	49 mm (1.9 inches)	84%	low