May weather forecast and Climate
Northampton, MA US

• The average high temperature in May: 20.6°C

The warmest month (with the highest average high temperature) is July (27.8°C).
The month with the lowest average high temperature is January (0.6°C).

• The average low temperature in May: 7.2°C

The month with the highest average low temperature is July (15°C).
The coldest month (with the lowest average low temperature) is January (-10.6°C).

• The average rainfall in May: 105.2mm

The wettest month (with the highest rainfall) is October (117.9mm).
The driest month (with the lowest rainfall) is February (82mm).