Princeton (NJ)
October
Weather in Princeton, New Jersey for October 2026
Your guide to Princeton weather in October - trends and predictions
In general, the average temperature in Princeton at the beginning of October is 21.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 15.4 °C by the end of October.
Princeton experiences moderate rainfall in October, with an average of 7 rainy days and a total precipitation of 135.4 mm.
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Temperatures
Rain 🌧️
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24
Dry days
7
Rainy days
0
Snow days
18°/8°
Temperatures
18 km/h
Avg max wind
68 %
Avg humidity
Princeton Weather October
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Temperatures trend during October in Princeton
See the weather trend as well as the moving average line
October weather in Princeton day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Oct. 1 |  Overcast | 19° /12° | 0 mm | 5 | |
| Oct. 2 | Overcast | 18° /12° | 0 mm | 5 | |
| Oct. 3 |  Cloudy | 20° /11° | 0 mm | 5 | |
| Oct. 4 |  Fog | 25° /14° | 0 mm | 6 | |
| Oct. 5 |  Partly cloudy | 25° /13° | 0 mm | 6 | |
| Oct. 6 | Partly cloudy | 23° /11° | 0 mm | 6 | |
| Oct. 7 |  Moderate or heavy rain with thunder | 22° /13° | 4.1 mm | 5 | |
| Oct. 8 | Cloudy | 19° /10° | 35.7 mm | 5 | |
| Oct. 9 |  Sunny | 17° /8° | 0 mm | 5 | |
| Oct. 10 | Sunny | 16° /4° | 0 mm | 5 | |
| Oct. 11 | Sunny | 18° /5° | 0 mm | 5 | |
| Oct. 12 | Overcast | 19° /11° | 22.2 mm | 5 | |
| Oct. 13 | Overcast | 19° /11° | 23.4 mm | 5 | |
| Oct. 14 | Partly cloudy | 18° /9° | 0.3 mm | 5 | |
| Oct. 15 | Cloudy | 15° /6° | 0 mm | 4 | |
| Oct. 16 | Sunny | 16° /4° | 0 mm | 5 | |
| Oct. 17 | Sunny | 14° /2° | 0 mm | 4 | |
| Oct. 18 | Sunny | 18° /5° | 0 mm | 5 | |
| Oct. 19 | Sunny | 22° /8° | 0 mm | 6 | |
| Oct. 20 | Mist | 20° /8° | 13.2 mm | 5 | |
| Oct. 21 | Sunny | 23° /7° | 0 mm | 7 | |
| Oct. 22 | Sunny | 24° /11° | 0 mm | 6 | |
| Oct. 23 | Mist | 20° /7° | 0 mm | 5 | |
| Oct. 24 | Overcast | 15° /5° | 0 mm | 4 | |
| Oct. 25 | Sunny | 15° /3° | 0 mm | 5 | |
| Oct. 26 |  Light rain shower | 16° /7° | 0.5 mm | 5 | |
| Oct. 27 | Overcast | 12° /5° | 0 mm | 3 | |
| Oct. 28 | Sunny | 13° /2° | 0 mm | 4 | |
| Oct. 29 | Overcast | 13° /5° | 5.2 mm | 3 | |
| Oct. 30 | Fog | 16° /8° | 30.8 mm | 4 | |
| Oct. 31 | Fog | 23° /10° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Princeton in October is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Princeton forecast closer to your planned date for the most up-to-date weather information.
Change Month
Princeton in October - FAQ
What are the expected maximum and minimum temperatures in Princeton during October?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 8°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Princeton during October?
Significant rainfall exceeding 135.4 mm is expected in Princeton during October, occurring over more than 7 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Princeton during October?
The average wind speed in Princeton during October is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
October rainfall patterns in Princeton
Explore the daily rainfall trends and prepare for Princetons October weather 💧
Typically, Princeton has 7 rainy days in October with a total of 135.4 mm of rainfall.
UV exposure in Princeton during October
Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
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