October weather forecast and climate
Trenton, NJ

A full aerial view of Trenton, New Jersey, with the George Washington statue
A full aerial view of Trenton, New Jersey, with the George Washington statue
October, like September, in Trenton, New Jersey, is another enjoyable autumn month, with average temperature varying between 49.6°F (9.8°C) and 64.2°F (17.9°C).

Temperature

In October, the average high-temperature decreases, from a moderately hot 76.1°F (24.5°C) in September, to an enjoyable 64.2°F (17.9°C). The average low-temperature, in Trenton, is 49.6°F (9.8°C).

Humidity

Months with the highest humidity in Trenton are February and October, with an average relative humidity of 78%.

Rainfall

In Trenton, New Jersey, in October, during 12.5 rainfall days, 2.48" (63mm) of precipitation is typically accumulated. Throughout the year, there are 156.8 rainfall days, and 31.81" (808mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. October is the first month it typically snows in Trenton. Throughout October, in the average 0.1 snowfall days, it receives 0.08" (2mm) of snow. Throughout the year, there are 16.6 snowfall days, and 8.86" (225mm) of snow is accumulated.

Daylight

In October, the average length of the day is 11.1h.

Sunshine

The average sunshine in Trenton is 5.7h.

UV index

The average daily maximum UV index in October is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to the UV radiation for average individuals.
Note: In October, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in October in Trenton?

In Trenton, New Jersey, in October, the average high-temperature is 64.2°F (17.9°C), and the average low-temperature is 49.6°F (9.8°C).

What is the most humid month in Trenton?

Months with the highest humidity in Trenton, New Jersey, are February and October, with an average relative humidity of 78%.

What is the average humidity in October in Trenton?

In Trenton, the average relative humidity in October is 78%.

How much does it rain in Trenton in October?

In Trenton, during October, the rain falls for 12.5 days and regularly aggregates up to 2.48" (63mm) of precipitation.

When does it start snowing in Trenton?

October is the first month it typically snows in Trenton, New Jersey. Throughout October, in the average 0.1 snowfall days, it receives 0.08" (2mm) of snow.

How many hours of daylight does Trenton have in October?

In October, the average length of the day in Trenton is 11.1h.

How long on average sun shines in October in Trenton?

In October, the average sunshine is 5.7h.

What is the UV index intensity in October in Trenton?

In October, the average daily maximum UV index in Trenton, New Jersey, is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV rays.
Average temperature in October - Trenton, NJ
  • Average high temperature in October: 17.9°C

The warmest month (with the highest average high temperature) is July (29.5°C).
The month with the lowest average high temperature is January (2.7°C).

  • Average low temperature in October: 9.8°C

The month with the highest average low temperature is July (19.6°C).
The coldest month (with the lowest average low temperature) is January (-4°C).

Average pressure in October - Trenton, NJ
  • Average pressure in October: 1016.8mbar

The month with the highest atmospheric pressure is November (1019.7mbar).
The month with the lowest atmospheric pressure is June (1013.7mbar).

Average wind speed in October - Trenton, NJ
  • Average wind speed in October: 11.5km/h

The windiest month (with the highest average wind speed) is March (13.9km/h).
The calmest month (with the lowest average wind speed) is August (8.7km/h).

Average humidity in October - Trenton, NJ
  • Average humidity in October: 78%

Months with the highest relative humidity are February and October (78%).
The month with the lowest relative humidity is April (72%).

Average rainfall in October - Trenton, NJ
  • Average rainfall in October: 63mm

The wettest month (with the highest rainfall) is July (95mm).
The driest month (with the least rainfall) is January (47mm).

Average rainfall days in October - Trenton, NJ
  • Average rainfall days in October: 12.5 days

The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is January (7.9 days).

Average snowfall in October - Trenton, NJ
  • Average snowfall in October: 2mm

The month with the highest snowfall is March (69mm).
Months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in October - Trenton, NJ
  • Average snowfall days in October: 0.1 days

The month with the highest number of snowfall days is January (4.8 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in October / Average sunshine in October - Trenton, NJ
  • Average daylight in October: 11.1h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in October: 5.7h

The month with the most sunshine is July (Average sunshine: 10.6h).
The month with the least sunshine is February (Average sunshine: 4.8h).

Average sunshine days in October - Trenton, NJ
  • Average sunshine days in October: 16.9 days

The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (9.3 days).

Average UV index in October - Trenton, NJ
  • Average UV index in October: 3

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in October - Trenton, NJ
  • Average cloud cover in October: 41

Months with the most cloud cover are February, March and December (Cloud cover 47).
Months with the least cloud cover are July and August (Cloud cover 32).

Average visibility in October - Trenton, NJ
  • Average visibility in October: 9km

Months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is May (8km).