Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
The average high-temperature decreases in October, shifting from a warm 75.7°F (24.3°C) in September to a comfortable 63.9°F (17.7°C). Throughout the month of October, Princeton observes an average nighttime temperature of 49.1°F (9.5°C).Humidity
The most humid month is October, with an average relative humidity of 79%.Rainfall
In October, the rain falls for 9.3 days. Throughout October, 1.02" (26mm) of precipitation is accumulated. In Princeton, during the entire year, the rain falls for 119.3 days and collects up to 12.72" (323mm) of precipitation.Snowfall
In Princeton, snow does not fall in June through October.Daylight
In Princeton, the average length of the day in October is 11h and 7min.On the first day of the month, sunrise is at 6:55 am and sunset at 6:40 pm. On the last day of October, sunrise is at 7:28 am and sunset at 5:56 pm EDT.
Sunshine
In October, the average sunshine is 5.7h.UV index
In October, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: A maximum high daily UV index of 3 during October translates into the following directions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are October temperatures?
What is the most humid month?
What is the average humidity in October?
How much does it rain in Princeton in October?
When it does not snow?
Does it snow in October?
What is the average length of the day in October?
What time are sunrise and sunset in October?
How long on average sun shines in October?
How high is the UV index in October in Princeton?
Average temperature in October
Princeton, NJ
- Average high temperature in October: 63.9°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in October: 49.1°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in October
Princeton, NJ
- Average pressure in October: 30.02"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in October
Princeton, NJ
- Average wind speed in October: 7.1mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in October
Princeton, NJ
- Average humidity in October: 79%
The month with the highest relative humidity is October (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall in October
Princeton, NJ
- Average rainfall in October: 1.02"
The wettest month (with the highest rainfall) is July (1.69").
The driest month (with the least rainfall) is September (0.67").
Average rainfall days in October
Princeton, NJ
- Average rainfall days in October: 9.3 days
The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is January (6.1 days).
Average snowfall in October
Princeton, NJ
- Average snowfall in October: 0"
The month with the highest snowfall is March (1.42").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in October
Princeton, NJ
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in October /
Average sunshine in October
Princeton, NJ
- Average daylight in October: 11h and 1min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in October: 5h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in October
Princeton, NJ
- Average sunshine days in October: 19.2 days
The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in October
Princeton, NJ
- Average UV index in October: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in October
Princeton, NJ
- Average cloud cover in October: 41
The months with the most cloud cover are February, March and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in October
Princeton, NJ
- Average visibility in October: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Princeton, New Jersey, USA
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