Last updated: June 24, 2025
In August, the average temperature in Princeton, United States hovers around 21°C (70°F). Temperatures can range from a cool 11°C (51°F) to a warm 33°C (91°F). Expect about 109 mm (4.3 in) of precipitation spread over 15 days, contributing to an average humidity of 66%. Perfect for those who enjoy a refreshing and vibrant atmosphere!
In August in Princeton, the average temperature is 21°C (70°F), with maximums reaching 33°C (91°F) and minimums dipping to as low as 11°C (51°F). This pleasant climate makes it an ideal time for travelers to explore the beauty of Princeton.
In Princeton in August, the precipitation amount is 109 mm (4.3 in) spread over 15 days.
In Princeton in August humidity is 66%. With an average temperature of 21°C (70°F), this humidity feels like a warm embrace, making it comfortable for leisurely strolls but slightly sticky for longer excursions.
In Princeton in August, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Princeton.
UV Risk Categories
Weather in Princeton varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Princeton, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 1°C (34°F) | 77 mm (3.0 inches) | 87% | moderate |
February Weather | 4°C (40°F) | 124 mm (4.9 inches) | 87% | high |
March Weather | 7°C (45°F) | 100 mm (3.9 inches) | 86% | very high |
April Weather | 11°C (53°F) | 120 mm (4.7 inches) | 84% | very high |
May Weather | 17°C (62°F) | 133 mm (5.2 inches) | 83% | extreme |
June Weather | 20°C (68°F) | 119 mm (4.7 inches) | 83% | extreme |
July Weather | 22°C (72°F) | 78 mm (3.1 inches) | 79% | extreme |
August Weather | 21°C (70°F) | 109 mm (4.3 inches) | 66% | very high |
September Weather | 19°C (66°F) | 109 mm (4.3 inches) | 68% | very high |
October Weather | 14°C (57°F) | 115 mm (4.5 inches) | 78% | high |
November Weather | 6°C (43°F) | 72 mm (2.8 inches) | 89% | moderate |
December Weather | 4°C (39°F) | 96 mm (3.8 inches) | 86% | moderate |