Salem (NH) Weather & Climate: Best Time to Visit

The climate in Salem is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a comfortable 29°C (84°F) in July to a very cold 2°C (36°F) in February.

Nighttime temperatures range from 17°C (63°F) in July to -9°C (16°F) in February.

Check out our detailed temperature page for more information.

Temperature ranges by month

Salem has a notably wet climate with abundant precipitation, recording 1203 mm (47 in) of rain/snowfall per year. The wettest period in Salem occurs in June, which receives around 128 mm (5 in) of precipitation. During the driest month, January, Salem experiences moderate snowfall, totaling 81 mm (3.2 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate. For more details, please visit our Salem Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

In Salem, summer days are longer and more sunny, with daily sunshine hours peaking at 10.0 hours in May. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 4.7 hours per average day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is high throughout the year in Salem.

The city experiences its highest humidity in August, reaching 72%. In February, the humidity drops to its lowest level at 62%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year