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Princeton Weather in July

July in Princeton brings high temperatures, with daytime highs of 29°C (84°F) and nights around 18°C (64°F). Quite a bit of rainfall is expected, around 95 mm (3.7 in), so pack an umbrella.

Rainfall in Princeton in July

Expect around 9 days of rain based on historical data, with 95 mm (3.7 in) average. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Princeton in July

If you're visiting Princeton in July, expect excellent temperatures with highs of 29°C (84°F) and overnight lows of 18°C (64°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. At 18°C (64°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping. It's the warmest month of the year on average, so summer clothing is the way to go.

If your ideal day consists of dry skies and pleasant temperatures, July and September typically offer the best circumstances for Princeton.

Princeton Temperature in July

Min Temperature
18°C (64°F)
Max Temperature
29°C (84°F)
Chance of Rain
31%
Precipitation
95 mm (3.7 in)
Rainy days
9 days

Princeton Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Princeton - and find the best time to visit.

Best Places in the United States of America in July

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in July →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Princeton in July

Warm temperatures in July make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes.

What To Do in Princeton in July

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Cycling
    7/10
  • Walking
    7/10
  • Camping
    8/10
  • Outdoor sports
    7/10

Princeton 3-Day Forecast

More climate data for Princeton

Popular in July

Where to go in July - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.