Princeton (NJ) Climate by Month
Princeton experiences great temperature shifts.
The city's weather can transition from very warm days
to cold weather.
It also has a relatively rain/snowy climate with high levels of precipitation.
Let’s explore the climate details in depth to provide you with a complete overview.
Average day and night temperature
The climate in Princeton is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a very warm 31°C in July to a chilly 4°C in February. Nighttime temperatures can drop, with averages reaching -6°C in February.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
Princeton has a notably wet climate with abundant precipitation, recording 1267 mm of rain/snowfall per year. The amount of precipitation varies moderately throughout the year. The wettest month, July, sees around 138 mm of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, February, still receives a respectable 76 mm of snow/rainfall.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
In Princeton, summer days are longer and more sunny, with daily sunshine hours peaking at 9.0 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 4.7 hours.Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
The best time of year to visit Princeton in the United States of America
During the months of May and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
The hottest season / summer takes place in June, July, August and September.
July has an average maximum temperature of 31°C and is the warmest month of the year.
The coldest month is February with an average maximum temperature of 4°C.
July tops the wettest month list with 138 mm of rainfall.
February is the driest month with 76 mm of precipitation.
July is the sunniest month with an average of 269 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
