May Weather in Northampton, United States

Last updated: June 24, 2025

In Northampton, United States, the average temperature in May hovers around 14°C (58°F). Expect a minimum of 4°C (39°F) and a comfortable maximum of 26°C (79°F). Be prepared for some rain, as 114 mm (4.5 in) of precipitation typically falls over 13 days. With an average humidity of 69%, it's wise to stay hydrated while you explore!

May Temperature in Northampton

In May in Northampton, the average temperature is 14°C (58°F). Maximums can reach 26°C (79°F), while minimums can dip as low as 4°C (39°F). It's a great time to explore Northampton, so be sure to pack layers to stay comfortable during both warm and cool moments.

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

The chart illustrates May temperature patterns in Northampton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Northampton, May typically has an average temperature of 14°C (58°F), with highs reaching up to 26°C (79°F) and lows dropping to around 4°C (39°F).

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

May Precipitation in Northampton

In Northampton in May, the total precipitation amount is 114 mm (4.5 in), distributed over the course of 13 days.

May Precipitation Trends in Northampton

The chart displays monthly precipitation patterns in Northampton, 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 Northampton, May typically receives around 114 mm (4.5 inches) of precipitation spread over approximately 13 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 Northampton

In Northampton in May, humidity is 69%. With an average temperature of 14°C (58°F), this humidity feels like a warm embrace, making it comfortable for traveling, though the air might feel a bit heavy and sticky as you explore.

May Average Humidity in Northampton

This chart illustrates the average monthly humidity levels in Northampton, 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 Northampton is approximately 69%, 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 Northampton

In Northampton 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 Northampton.

Maximum UV Index Levels in Northampton for May

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

Data source: Northampton 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 Northampton Compares to Other Months

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

This table compares monthly weather conditions in Northampton, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (36°F)	79 mm (3.1 inches)	84%	moderate
February Weather	2°C (37°F)	106 mm (4.2 inches)	82%	moderate
March Weather	4°C (40°F)	101 mm (4.0 inches)	81%	high
April Weather	9°C (49°F)	126 mm (5.0 inches)	78%	very high
May Weather	14°C (58°F)	114 mm (4.5 inches)	69%	very high
June Weather	20°C (68°F)	76 mm (3.0 inches)	69%	very high
July Weather	24°C (75°F)	117 mm (4.6 inches)	62%	very high
August Weather	24°C (75°F)	96 mm (3.8 inches)	65%	very high
September Weather	21°C (70°F)	89 mm (3.5 inches)	68%	very high
October Weather	16°C (61°F)	139 mm (5.5 inches)	74%	high
November Weather	9°C (49°F)	100 mm (3.9 inches)	82%	moderate
December Weather	5°C (41°F)	137 mm (5.4 inches)	80%	low