Princeton (NJ) Temperatures: Monthly Averages and Year-Round Insights
On this page, we’ll explore Princeton’s temperature statistics in detail, including day and night variations and monthly averages. We’ll also compare the annual temperature to other cities in the United States of America.
Monthly Temperature Averages
The climate in Princeton is known for significant temperature differences throughout the year. Average maximum daytime temperatures range from a very warm 31°C in July, the warmest time of the year, to a chilly 4°C during cooler months like February. At night, minimum temperatures typically average around -6°C during these months.
The chart below illustrates the average maximum day and minimum night temperatures in Princeton by month:
The minimum temperature is often recorded between 4 AM and 6 AM, while the highest temperature is usually reached at 3 PM. During this time the sun's heating effect is the strongest.
The chart below shows the average temperature throughout the year:
July, the city’s warmest month, also receives about 138 mm of rainfall spread over roughly 12 days. For more information, please visit our Princeton Precipitation page.
Annual Temperatures in the United States of America Compared
The map below shows the annual temperature across the United States of America. You can also select the different months in case you are interested in a specific month.
very warm
warm
pleasant
moderate
cold
very cold
Princeton Temperatures Compared World Wide
Princeton’s average annual maximum temperature is 18°C. Let’s compare this with some popular tourist destinations:
Seville, Spain, stands out with its warm Mediterranean climate and an average annual temperature of 23°C.
Meanwhile, Queenstown, New Zealand, the average annual temperature is significantly lower at 10°C, with mild summers and cold winters.
In Seoul, South Korea, the average annual temperature is 18°C, featuring distinct seasons.
Melbourne, Australia, has a slightly cooler climate, with an average annual temperature of 20°C.
How are these Temperatures Measured?
Generally, temperature data depicting climate is usually given over a 30-year average in order to reduce short-term fluctuations and reveal better long-term trends in climate conditions.
This temperature data is taken from land-based thermometers, ocean buoys, ships, and satellites. These measurements are transmitted to weather stations and climate centers around the globe where they are processed, averaged, and analyzed in order to monitor the trends and create climate models.
Temperatures in the Mountains
Although not all regions have mountains, elevated areas exhibit distinct temperature variations.
- Sun Exposure: Sunlit slopes tend to be warmer, while shaded areas remain cooler.
- Altitude Effects: Temperatures drop by approximately 6°C for every 1,000 meters of elevation, creating distinct microclimates.
For more detailed information about Princeton’s weather, including monthly rainfall, sunshine hours, and humidity levels, visit our Princeton climate page.
Current temperature in Princeton (NJ)
4 m/s
almost clear and no rain
2 m/s
partly cloudy and no rain
3 m/s
partly cloudy and snow
