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

Monthly weather forecast and climate
Princeton, NJ

An ancient stone building still stands strong in the neat fields and scenic trees of Princeton University, New Jersey, with a clear sky
An ancient stone building still stands strong in the neat fields and scenic trees of Princeton University, New Jersey, with a clear sky
January, the same as December, is another cold winter month in Princeton, New Jersey, with average temperature varying between 38.7°F (3.7°C) and 21.6°F (-5.8°C). With an average high-temperature of 38.7°F (3.7°C) and an average low-temperature of 21.6°F (-5.8°C), January is the coldest month. Weather in January »
February, the last month of the winter, in Princeton, is also a wintry month, with temperature in the range of an average low of 23.4°F (-4.8°C) and an average high of 41.2°F (5.1°C). In February, the average high-temperature is practically the same as in January - a still wintry 41.2°F (5.1°C). Weather in February »

The first month of the spring, March, is a fresh month in Princeton, New Jersey, with average temperature ranging between min 31.3°F (-0.4°C) and max 50.2°F (10.1°C). In March, the average high-temperature rises, from a wintry 41.2°F (5.1°C) in February, to a fresh 50.2°F (10.1°C). Weather in March »

April in Princeton, New Jersey, is an enjoyable spring month, with average temperature ranging between min 39.4°F (4.1°C) and max 61°F (16.1°C). In April, the average high-temperature increases, from a cool 50.2°F (10.1°C) in March, to an enjoyable 61°F (16.1°C). Weather in April »

The last month of the spring, May, is an agreeable month in Princeton, New Jersey, with temperature in the range of an average high of 71.6°F (22°C) and an average low of 48.9°F (9.4°C). In Princeton, New Jersey, the average high-temperature rises, from an enjoyable 61°F (16.1°C) in April, to a pleasant 71.6°F (22°C). Weather in May »

The first month of the summer, June, is a moderately hot month in Princeton, New Jersey, with average temperature varying between 80.2°F (26.8°C) and 57.9°F (14.4°C). In June, the average high-temperature marginally rises, from a pleasant 71.6°F (22°C) in May, to a moderately hot 80.2°F (26.8°C). Weather in June »

July, the same as June, is a moderately hot summer month in Princeton, New Jersey, with average temperature ranging between max 84.9°F (29.4°C) and min 63.1°F (17.3°C). The warmest month is July, with an average high-temperature of 84.9°F (29.4°C) and an average low-temperature of 63.1°F (17.3°C). Weather in July »

August, the last month of the summer, in Princeton, is another warm month, with average temperature fluctuating between 61.5°F (16.4°C) and 83.1°F (28.4°C). In August, the average high-temperature is almost the same as in July - a still warm 83.1°F (28.4°C). Weather in August »

September, the first month of the autumn, in Princeton, is also a moderately hot month, with average temperature fluctuating between 54°F (12.2°C) and 76.3°F (24.6°C). In Princeton, the average high-temperature marginally drops, from 83.1°F (28.4°C) in August, to a still moderately hot 76.3°F (24.6°C). Weather in September »

October, the same as September, is another comfortable autumn month in Princeton, New Jersey, with temperature in the range of an average high of 65.1°F (18.4°C) and an average low of 42.3°F (5.7°C). In Princeton, the average high-temperature drops, from a warm 76.3°F (24.6°C) in September, to an enjoyable 65.1°F (18.4°C). Weather in October »

The last month of the autumn, November, is also a fresh month in Princeton, New Jersey, with average temperature varying between 34.5°F (1.4°C) and 54.1°F (12.3°C). In Princeton, the average high-temperature decreases, from a comfortable 65.1°F (18.4°C) in October, to a fresh 54.1°F (12.3°C). Weather in November »

December, the first month of the winter, in Princeton, is also a frosty month, with average temperature fluctuating between 43.5°F (6.4°C) and 26.8°F (-2.9°C). In Princeton, the average high-temperature in December decreases, from a fresh 54.1°F (12.3°C) in November, to a frosty 43.5°F (6.4°C). Weather in December »

What is the coldest month in Princeton?

With an average high-temperature of 38.7°F (3.7°C) and an average low-temperature of 21.6°F (-5.8°C), January is the coldest month in Princeton, New Jersey.

How many days does it rain in Princeton?

Throughout the year, in Princeton, New Jersey, there are 119 rainfall days, and 48.3" (1225.6mm) of precipitation is accumulated.

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

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

What is the driest month in Princeton?

February is the month with the least rainfall. Rain falls for 10 days and accumulates 3" (75.2mm) of precipitation.

When are the longest days in Princeton?

June has the longest days of the year, with an average of 15h of daylight.

What is the month with the most sunshine in Princeton?

June and July, with an average of 9h of sunshine, are months with the most sunshine in Princeton.

When is the highest UV index in Princeton?

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

What is the warmest month in Princeton?

The warmest month in Princeton, New Jersey, is July, with an average high-temperature of 84.9°F (29.4°C) and an average low-temperature of 63.1°F (17.3°C).

What is the rainiest month in Princeton?

July is the month with the most rainfall. Rain falls for 10 days and accumulates 5.3" (135.1mm) of precipitation.

What is the month with the shortest days in Princeton?

The month with the shortest days is December, with an average of 9.3h of daylight.

What is the month with the least sunshine in Princeton?

With an average of 4h of sunshine, December has the least sunshine of the year in Princeton, New Jersey.
Average temperature - Princeton, NJ
Average rainfall - Princeton, NJ
Average rainfall days - Princeton, 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 - Princeton, NJ