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 a wintry winter month, with an average temperature ranging between min 24.8°F (-4°C) and max 36.9°F (2.7°C). January is the coldest month, 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

February, the last month of the winter in Trenton, is another cold month, with an average temperature varying between 40.6°F (4.8°C) and 26.6°F (-3°C). In Trenton, the average high-temperature in February is essentially the same as in January - a still cold 40.6°F (4.8°C). Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Trenton, New Jersey, with an average temperature varying between 33.6°F (0.9°C) and 48.7°F (9.3°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 moderate spring month, with an average temperature fluctuating between 43.7°F (6.5°C) and 60.6°F (15.9°C). In April, the average high-temperature increases from a frosty 48.7°F (9.3°C) in March to a moderate 60.6°F (15.9°C). Weather in April »

Weather in May

May, the last month of the spring in Trenton, is a pleasant month, with an average temperature fluctuating between 70.9°F (21.6°C) and 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 high of 79.2°F (26.2°C) and an average low of 61.2°F (16.2°C). In Trenton, the average high-temperature in June slightly increases from a pleasant 70.9°F (21.6°C) in May to a moderately hot 79.2°F (26.2°C). Weather in June »

Weather in July

July, like June, in Trenton, New Jersey, is another warm summer month, with an average temperature fluctuating between 85.1°F (29.5°C) and 67.3°F (19.6°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. In July, the average heat index is evaluated at a very hot 95°F (35°C). Weather in July »

Weather in August

August, the last month of the summer in Trenton, is another warm month, with an average temperature fluctuating between 66.4°F (19.1°C) and 82.9°F (28.3°C). In August, the average high-temperature is practically the same as in July - a still warm 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 temperature in the range of an average low of 59.4°F (15.2°C) and an average high of 76.1°F (24.5°C). In September, the average high-temperature slightly decreases from 82.9°F (28.3°C) in August to a still warm 76.1°F (24.5°C). Weather in September »

Weather in October

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

Weather in November

The last month of the autumn, November, is also a fresh month in Trenton, New Jersey, with an average temperature ranging between max 52°F (11.1°C) and min 38.1°F (3.4°C). In November, the average high-temperature drops from a comfortable 64.2°F (17.9°C) in October to a fresh 52°F (11.1°C). Weather in November »

Weather in December

The first month of the winter, December, is also a frosty month in Trenton, New Jersey, with temperature in the range of an average high of 43.2°F (6.2°C) and an average low of 32°F (0°C). In Trenton, the average high-temperature in December slightly decreases from a cool 52°F (11.1°C) in November to a frosty 43.2°F (6.2°C). Weather in December »
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FAQ

What is the coldest month in Trenton?

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).

What is the driest month in Trenton?

The month with the least rainfall in Trenton is January, when the rain falls for 7.9 days and typically collects 1.85" (47mm) of precipitation.

How much does it rain in Trenton?

In Trenton, during the entire year, the rain falls for 156.8 days and collects up to 31.81" (808mm) of precipitation.

When does it snow in Trenton?

January through May, October through December are months with snowfall in Trenton, New Jersey.

How many days 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.

When is the lowest UV index in Trenton?

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

What is the most humid month in Trenton?

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

What is the month with the least sunshine in Trenton?

With an average of 4.8h of sunshine, February has the least sunshine of the year.

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, 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?

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

What are the months 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.

When it does not snow in Trenton?

June through September are months without snowfall in Trenton, New Jersey.

When are the longest days in Trenton?

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

What is the warmest month in Trenton?

The warmest month 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, New Jersey. 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 is July, with an average of 10.6h of sunshine.

What is the month with the shortest days in Trenton?

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

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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