Trenton
New Jersey, USA
Long-term weather forecast
Long-term weather forecast

Monthly 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
January, like December, in Trenton, New Jersey, is another cold winter month, with average temperature fluctuating between 39°F (3.9°C) and 23.2°F (-4.9°C). January is the coldest month, with an average high-temperature of 39°F (3.9°C) and an average low-temperature of 23.2°F (-4.9°C). Weather in January »
February, the last month of the winter, in Trenton, is also a wintry month, with average temperature ranging between max 42.3°F (5.7°C) and min 25.9°F (-3.4°C). In February, the average high-temperature is essentially the same as in January - a still cold 42.3°F (5.7°C). Weather in February »

March, the first month of the spring, in Trenton, is a fresh month, with average temperature varying between 50.9°F (10.5°C) and 31.8°F (-0.1°C). In March, the average high-temperature slightly increases, from a wintry 42.3°F (5.7°C) in February, to a fresh 50.9°F (10.5°C). Weather in March »

April in Trenton, New Jersey, is a comfortable spring month, with average temperature fluctuating between 41°F (5°C) and 61.3°F (16.3°C). In April, the average high-temperature rises, from a cool 50.9°F (10.5°C) in March, to an enjoyable 61.3°F (16.3°C). Weather in April »

The last month of the spring, May, is a pleasant month in Trenton, New Jersey, with average temperature fluctuating between 50.5°F (10.3°C) and 71.8°F (22.1°C). In May, the average high-temperature rises, from a comfortable 61.3°F (16.3°C) in April, to an agreeable 71.8°F (22.1°C). Weather in May »

June, the first month of the summer, in Trenton, is a moderately hot month, with average temperature ranging between min 60.3°F (15.7°C) and max 80.8°F (27.1°C). In Trenton, the average high-temperature in June increases, from a pleasant 71.8°F (22.1°C) in May, to a moderately hot 80.8°F (27.1°C). Weather in June »

July, like June, in Trenton, New Jersey, is another warm summer month, with average temperature fluctuating between 66°F (18.9°C) and 85.3°F (29.6°C). The warmest month is July, with an average high-temperature of 85.3°F (29.6°C) and an average low-temperature of 66°F (18.9°C). Weather in July »

The last month of the summer, August, is also a moderately hot month in Trenton, New Jersey, with temperature in the range of an average low of 64.2°F (17.9°C) and an average high of 83.7°F (28.7°C). In August, the average high-temperature is almost the same as in July - a still warm 83.7°F (28.7°C). Weather in August »

The first month of the autumn, September, is still a warm month in Trenton, New Jersey, with average temperature ranging between min 56.5°F (13.6°C) and max 76.1°F (24.5°C). In Trenton, the average high-temperature in September slightly decreases, from a moderately hot 83.7°F (28.7°C) in August, to a still warm 76.1°F (24.5°C). Weather in September »

October, like September, in Trenton, New Jersey, is another comfortable autumn month, with average temperature varying between 44.2°F (6.8°C) and 64.9°F (18.3°C). In Trenton, the average high-temperature drops, from a moderately hot 76.1°F (24.5°C) in September, to a comfortable 64.9°F (18.3°C). Weather in October »

The last month of the autumn, November, is also a fresh month in Trenton, New Jersey, with temperature in the range of an average low of 36.9°F (2.7°C) and an average high of 54.5°F (12.5°C). In November, the average high-temperature drops, from a comfortable 64.9°F (18.3°C) in October, to a cool 54.5°F (12.5°C). Weather in November »

December, the first month of the winter, in Trenton, is still a chilly month, with average temperature ranging between max 43.2°F (6.2°C) and min 27.7°F (-2.4°C). In Trenton, New Jersey, the average high-temperature decreases, from a fresh 54.5°F (12.5°C) in November, to a chilly 43.2°F (6.2°C). Weather in December »

What is the coldest month in Trenton?

With an average high-temperature of 39°F (3.9°C) and an average low-temperature of 23.2°F (-4.9°C), January is the coldest month.

How many days does it rain in Trenton?

Throughout the year, in Trenton, New Jersey, there are 118 rainfall days, and 46.4" (1179.7mm) of precipitation is accumulated.

When is the lowest UV index in Trenton?

Months with the lowest UV index in Trenton, New Jersey, are January, November and December, with an average maximum UV index of 2.

What is the driest month in Trenton?

The month with the least rainfall in Trenton is February when the rain falls for 10 days and typically collects 2.3" (58.7mm) of precipitation.

When are the longest days in Trenton?

With an average of 15h of daylight, June has the longest days of the year in Trenton, New Jersey.

What month has the most sunshine in Trenton?

The month with the most sunshine in Trenton is June, with an average of 8.8h of sunshine.

What is the month with the highest UV index in Trenton?

Months with the highest UV index in Trenton, New Jersey, are June and July, with an average maximum UV index of 9.

What is the warmest month in Trenton?

The warmest month in Trenton, New Jersey, is July, with an average high-temperature of 85.3°F (29.6°C) and an average low-temperature of 66°F (18.9°C).

What is the rainiest month in Trenton?

July is the month with the most rainfall. Rain falls for 9 days and accumulates 4.9" (125.7mm) of precipitation.

What is the month with the shortest days in Trenton?

With an average of 9.4h of daylight, December has the shortest days of the year in Trenton, New Jersey.

What is the month with the least sunshine in Trenton?

December has the least sunshine of the year in Trenton, with an average of 4.5h of sunshine.
Average rainfall - Trenton, NJ
Average rainfall days - Trenton, NJ

Months with the highest number of rainy days are March, April, May and December (11 days).
Months with the lowest number of rainy days are September and October (8 days).

Average daylight / Average sunshine - Trenton, NJ