Princetown Weather & Climate: Best Time to Visit

Depending on the time of the year, temperatures range from pleasant to chilly in Princetown. Average maximum daytime temperatures range from a pleasant 21°C (70°F) in July, the warmest time of the year, to a chilly 9°C (48°F) during cooler months like February.

At night, you can expect temperatures ranging from 13°C (55°F) in July to around 3°C (37°F) during February.

Check out our detailed temperature page for more information.

Temperature ranges by month

Generally, Princetown has a moderate amount of precipitation, averaging 966 mm (38 in) of rainfall annually. Year-round, Princetown has a balanced climate with minimal variation in precipitation. The difference between the wettest month, December, with 94 mm (3.7 in), and the driest month, September, with 66 mm (2.6 in), is minimal. For more details, please visit our Princetown Precipitation page.

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

The average number of days each month with precipitation

Seasonal changes in sunshine hours are quite dramatic in Princetown. While May receives considerable daily sunshine with up to 7.4 hours, December marks the darkest time of the year, where sunshine is scarce with only 1.8 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The city experiences its highest humidity in January, reaching 86%. In May, the humidity drops to its lowest level at 79%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year