Average Monthly Sunshine in Princeton (NJ)

The graphs on this page shows the average number of hours per month and per day that Princeton receives direct sunlight. The numbers are calculated over a 30-year period to provide a reliable average.

Monthly hours of sunshine

Seasonal sunshine in Princeton varies. It peaks at 269 hours in July and drops to 140 hours in December. The total annual amount of sun is 2510 hours.

Daily hours of sunshine

For those who appreciate different seasons, the city serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 9.0 hours of sunshine daily, and embrace the darker days in December, offering only 4.7 hours of daily sunlight.

Princeton’s total hours of sunshine compared to other major cities

Princeton enjoys an average of 2510 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

Seville, Spain, enjoys an impressive 2920 hours of sunshine per year, making it an ideal destination even in winter.

In contrast, London, UK, receives only about 1659 hours of sunshine per year, known for its frequently overcast and rainy skies.

Oslo, Norway, receives approximately 1690 hours of sunshine annually.

In Tokyo, Japan, the average annual sunshine is 1930 hours, with sunny periods between rainy seasons.

Other climate information

July, Princeton’s wettest month, receives 138 mm of rainfall and has a maximum daytime temperature of 31°C. During the driest month February you can expect a temperature of 5°C.

For more detailed insights into the city’s temperatures, check out our Temperature page. To explore more about precipitation patterns, visit our Precipitation page.