Climate and monthly weather forecast
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

Weather in January

January, like December, in Trenton, New Jersey, is another cold winter month, with temperature in the range of an average low of 24.8°F (-4°C) and an average high of 36.9°F (2.7°C). The coldest month is January, with an average high-temperature of 36.9°F (2.7°C) and an average low-temperature of 24.8°F (-4°C). Weather in January »

Weather in February

The last month of the winter, February, is another cold month in Trenton, New Jersey, with an average temperature ranging between max 40.6°F (4.8°C) and min 26.6°F (-3°C). In Trenton, the average high-temperature in February is relatively the same as in January - a still wintry 40.6°F (4.8°C). Weather in February »

Weather in March

March, the first month of the spring in Trenton, is a chilly month, with temperature in the range of an average high of 48.7°F (9.3°C) and an average low of 33.6°F (0.9°C). In Trenton, the average high-temperature in March marginally rises from a wintry 40.6°F (4.8°C) in February to a frosty 48.7°F (9.3°C). Weather in March »

Weather in April

April in Trenton, New Jersey, is a mild spring month, with temperature in the range of an average low of 43.7°F (6.5°C) and an average high of 60.6°F (15.9°C). In April, the average high-temperature increases from a chilly 48.7°F (9.3°C) in March to a mild 60.6°F (15.9°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Trenton, New Jersey, with an average temperature ranging between max 70.9°F (21.6°C) and min 53.6°F (12°C). In Trenton, the average high-temperature in May rises from a mild 60.6°F (15.9°C) in April to a pleasant 70.9°F (21.6°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Trenton, New Jersey, with temperature in the range of an average low of 61.2°F (16.2°C) and an average high of 79.2°F (26.2°C). In Trenton, the average high-temperature in June slightly increases from a pleasant 70.9°F (21.6°C) in May to a warm 79.2°F (26.2°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Trenton, New Jersey, with temperature in the range of an average low of 67.3°F (19.6°C) and an average high of 85.1°F (29.5°C). With an average high-temperature of 85.1°F (29.5°C) and an average low-temperature of 67.3°F (19.6°C), July is the warmest month. The average heat index in July is evaluated at a hot 94.5°F (34.7°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Trenton, New Jersey, with an average temperature fluctuating between 66.4°F (19.1°C) and 82.9°F (28.3°C). In Trenton, the average high-temperature in August is almost the same as in July - a still moderately hot 82.9°F (28.3°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Trenton, New Jersey, with an average temperature varying between 59.4°F (15.2°C) and 76.1°F (24.5°C). In September, the average high-temperature marginally drops from 82.9°F (28.3°C) in August to a still moderately hot 76.1°F (24.5°C). Weather in September »

Weather in October

October, like September, in Trenton, New Jersey, is another enjoyable autumn month, with an average temperature varying between 64.2°F (17.9°C) and 49.6°F (9.8°C). In October, the average high-temperature drops from a warm 76.1°F (24.5°C) in September to an enjoyable 64.2°F (17.9°C). Weather in October »

Weather in November

November, the last month of the autumn in Trenton, is another cool month, with an average temperature fluctuating between 38.1°F (3.4°C) and 52°F (11.1°C). In Trenton, New Jersey, the average high-temperature in November decreases from a comfortable 64.2°F (17.9°C) in October to a cool 52°F (11.1°C). Weather in November »

Weather in December

December, the first month of the winter in Trenton, is still a chilly month, with an average temperature fluctuating between 32°F (0°C) and 43.2°F (6.2°C). In December, the average high-temperature marginally drops from a cool 52°F (11.1°C) in November to a chilly 43.2°F (6.2°C). Weather in December »
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FAQ

What is the coldest month in Trenton?

The coldest month in Trenton, New Jersey, is January, with an average high-temperature of 36.9°F (2.7°C) and an average low-temperature of 24.8°F (-4°C).

What is the driest month in Trenton?

January is the month with the least rainfall in Trenton. Rain falls for 7.9 days and accumulates 1.85" (47mm) of precipitation.

How many days does it rain in Trenton?

Throughout the year, there are 156.8 rainfall days, and 31.81" (808mm) of precipitation is accumulated.

When does it snow in Trenton?

Months with snowfall are January through May, October through December.

How much does it snow in Trenton?

In Trenton, New Jersey, during the entire year, snow falls for 16.6 days and aggregates up to 8.86" (225mm) of snow.

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

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Trenton.

What is the most humid month in Trenton?

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

What is the month with the least sunshine in Trenton?

The month with the least sunshine is February, with an average of 4.8h of sunshine.

When does it snow the most in Trenton?

The month with the most snowfall is March, when snow falls for 3.5 days and typically aggregates up to 2.72" (69mm) of snow.

When is Daylight Saving Time (DST) in Trenton?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Trenton, New Jersey, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from EDT to EST.

What is the least humid month in Trenton?

The least humid month is April, with an average relative humidity of 72%.

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

May through August, with an average maximum UV index of 6, are months with the highest UV index in Trenton, New Jersey.

When it does not snow in Trenton?

In Trenton, snow does not fall in June through September.

When are the longest days in Trenton?

June has the longest days of the year in Trenton, New Jersey, with an average of 14h and 59min of daylight.

What is the warmest month in Trenton?

The warmest month in Trenton is July, with an average high-temperature of 85.1°F (29.5°C) and an average low-temperature of 67.3°F (19.6°C).

What is the rainiest month in Trenton?

July is the month with the most rainfall in Trenton. Rain falls for 18.5 days and accumulates 3.74" (95mm) of precipitation.

What month has the most sunshine in Trenton?

The month with the most sunshine in Trenton, New Jersey, is July, with an average of 10.6h of sunshine.

What is the month with the shortest days in Trenton?

December has the shortest days of the year in Trenton, New Jersey, with an average of 9h and 22min of daylight.

Average temperature
Trenton, NJ

Average temperature - Trenton, NJ

The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (36.9°F).

The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

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Average pressure
Trenton, NJ

Average pressure - Trenton, NJ

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed
Trenton, NJ

Average wind speed - Trenton, NJ

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

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Average humidity
Trenton, NJ

Average humidity - Trenton, NJ

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

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Average rainfall
Trenton, NJ

Average rainfall - Trenton, NJ

The wettest month (with the highest rainfall) is July (3.74").
The driest month (with the least rainfall) is January (1.85").

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Average rainfall days
Trenton, NJ

Average rainfall days - Trenton, NJ

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).

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Average snowfall
Trenton, NJ

Average snowfall - Trenton, NJ

The month with the highest snowfall is March (2.72").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Trenton, NJ

Average snowfall days - Trenton, NJ

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

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Average daylight / Average sunshine
Trenton, NJ

Average daylight / Average sunshine - Trenton, NJ

The month with the longest days is June (Average daylight: 14h and 59min).
The month with the shortest days is December (Average daylight: 9h and 22min).

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days
Trenton, NJ

Average sunshine days - Trenton, NJ

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

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Average UV index
Trenton, NJ

Average UV index - Trenton, NJ

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

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Average cloud cover
Trenton, NJ

Average cloud cover - Trenton, NJ

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 32).

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Average visibility
Trenton, NJ

Average visibility - Trenton, NJ

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).

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