May Weather in Nashua, United States

Last updated: June 24, 2025

In Nashua, United States, the average temperature in May hovers around 16°C (60°F). Expect a wide range in temperature, with minimums plunging to -1°C (30°F) and maximums soaring up to 34°C (93°F). During this month, precipitation averages 163 mm (6.4 in) over approximately 15 days, contributing to an overall average humidity of 74%.

May Temperature in Nashua

In May in Nashua, the average temperature is 16°C (60°F). Maximums can reach 34°C (93°F), while minimums can drop as low as -1°C (30°F). Be prepared for a wide range of temperatures when traveling during this month.

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

The chart illustrates May temperature patterns in Nashua, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nashua, May typically has an average temperature of 16°C (60°F), with highs reaching up to 34°C (93°F) and lows dropping to around -1°C (30°F).

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

May Precipitation in Nashua

In Nashua in May, the total precipitation amount is 163 mm (6.4 in) spread over 15 days.

May Precipitation Trends in Nashua

The chart displays monthly precipitation patterns in Nashua, 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 Nashua, May typically receives around 163 mm (6.4 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 Nashua

In Nashua in May humidity is 74%. With an average temperature of 16°C (60°F), this humidity feels like a damp blanket enveloping you, making traveling a bit uncomfortable as you navigate the sticky air and potentially limiting your energy for exploring the sights.

May Average Humidity in Nashua

This chart illustrates the average monthly humidity levels in Nashua, 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 Nashua is approximately 74%, 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 Nashua

In Nashua 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 Nashua.

Maximum UV Index Levels in Nashua for May

The chart shows the monthly maximum UV Index (UVI) for Nashua 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 Nashua typically reaches 9, which falls under the very high exposure category.

Data source: Nashua 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 Nashua Compares to Other Months

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

This table compares monthly weather conditions in Nashua, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (19°F)	38 mm (1.5 inches)	82%	moderate
February Weather	-7°C (19°F)	50 mm (2.0 inches)	84%	moderate
March Weather	2°C (36°F)	72 mm (2.8 inches)	80%	moderate
April Weather	8°C (46°F)	72 mm (2.8 inches)	81%	very high
May Weather	16°C (60°F)	163 mm (6.4 inches)	74%	very high
June Weather	22°C (72°F)	128 mm (5.0 inches)	80%	extreme
July Weather	23°C (74°F)	92 mm (3.6 inches)	80%	very high
August Weather	21°C (71°F)	119 mm (4.7 inches)	77%	very high
September Weather	18°C (65°F)	114 mm (4.5 inches)	75%	very high
October Weather	10°C (50°F)	130 mm (5.1 inches)	80%	moderate
November Weather	2°C (35°F)	50 mm (2.0 inches)	87%	moderate
December Weather	-2°C (28°F)	37 mm (1.4 inches)	83%	moderate