June weather forecast
Princeton, NJ

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An ancient stone building still stands strong in the neat fields and scenic trees of Princeton University, New Jersey
An ancient stone building still stands strong in the neat fields and scenic trees of Princeton University, New Jersey

Weather in June

June in Princeton represents the full onset of summer, with longer daylight hours and higher UV index than preceding months. The month displays high temperature interspersed with mild rain, ensuring a balmy weather conducive to outdoor activities. The wind's speed drops, adding to the overall comfort of the warm surroundings. There's a decrease in cloud coverage compared to previous months, opening up clear blue skies for most parts of the day. Contrasting to May, June exhibits increased sunlight duration, amplified UV index, and marginally reduced wind speed.

Temperature

A minor escalation in the average high-temperature is seen with the onset of June, moving from an agreeable 70.5°F (21.4°C) in May to a warm 78.4°F (25.8°C). During June, Princeton's temperature falls to a steady low-temperature average of 61°F (16.1°C).

Humidity

In Princeton, the average relative humidity in June is 77%.

Rainfall

In June, the rain falls for 12.3 days. Throughout June, 1.02" (26mm) of precipitation is accumulated. In Princeton, during the entire year, the rain falls for 119.3 days and collects up to 12.72" (323mm) of precipitation.

Snowfall

In Princeton, snow does not fall in June through October.

Daylight

June has the longest days of the year in Princeton, New Jersey, with an average of 15h and 0min of daylight.
On the first day of the month, sunrise is at 5:30 am and sunset at 8:22 pm. On the last day of June, in Princeton, sunrise is at 5:32 am and sunset at 8:32 pm EDT.

Sunshine

In Princeton, the average sunshine in June is 9.8h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In June, the maximum UV index of 6 suggests these recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Enhance your sun protection with tightly woven, yet airy clothing.
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Frequently asked questions

What are the temperatures in Princeton in June?

In Princeton, in June, the average high-temperature is 78.4°F (25.8°C), and the average low-temperature is 61°F (16.1°C).

What is the average humidity in June in Princeton?

In Princeton, the average relative humidity in June is 77%.

How many days does it rain in June in Princeton?

In Princeton, in June, it is raining for 12.3 days, with typically 1.02" (26mm) of accumulated precipitation.

When it does not snow in Princeton?

June through October are months without snowfall.

Does it snow in Princeton in June?

In June, in Princeton, New Jersey, it doesn't snow. May is the latest month when it typically snows.

When are the longest days in Princeton?

The month with the longest days is June, with an average of 15h and 0min of daylight.

How many hours of daylight does Princeton have in June?

In Princeton, New Jersey, the average day length in June is 15h and 1min.

What time are sunrise and sunset in June in Princeton?

On the first day of June, sunrise is at 5:30 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:32 pm EDT.

How many hours of sunshine does Princeton have in June?

In June, the average sunshine duration is 9.8h.

What are the months with the highest UV index in Princeton?

The months with the highest UV index in Princeton are June through August, with an average maximum UV index of 6.

What is the UV index intensity in June in Princeton?

In Princeton, New Jersey, the average daily maximum UV index in June is 6. A UV Index reading of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Princeton, NJ

Average temperature in June - Princeton, NJ
  • Average high temperature in June: 78.4°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in June: 61°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure in June
Princeton, NJ

Average pressure in June - Princeton, NJ
  • Average pressure in June: 29.93"Hg

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 in June
Princeton, NJ

Average wind speed in June - Princeton, NJ
  • Average wind speed in June: 6.3mph

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

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Average humidity in June
Princeton, NJ

Average humidity in June - Princeton, NJ
  • Average humidity in June: 77%

The month with the highest relative humidity is October (79%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in June
Princeton, NJ

Average rainfall in June - Princeton, NJ
  • Average rainfall in June: 1.02"

The wettest month (with the highest rainfall) is July (1.69").
The driest month (with the least rainfall) is September (0.67").

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Average rainfall days in June
Princeton, NJ

Average rainfall days in June - Princeton, NJ
  • Average rainfall days in June: 12.3 days

The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is January (6.1 days).

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Average snowfall in June
Princeton, NJ

Average snowfall in June - Princeton, NJ
  • Average snowfall in June: 0"

The month with the highest snowfall is March (1.42").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in June
Princeton, NJ

Average snowfall days in June - Princeton, NJ
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in June /
Average sunshine in June
Princeton, NJ

Average daylight in June / Average sunshine in June - Princeton, NJ
  • Average daylight in June: 15h and 0min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in June: 9h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in June
Princeton, NJ

Average sunshine days in June - Princeton, NJ
  • Average sunshine days in June: 15.7 days

The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is July (13.3 days).

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Average UV index in June
Princeton, NJ

Average UV index in June - Princeton, NJ
  • Average UV index in June: 6

The months with the highest UV index are 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 in June
Princeton, NJ

Average cloud cover in June - Princeton, NJ
  • Average cloud cover in June: 37

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 33).

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Average visibility in June
Princeton, NJ

Average visibility in June - Princeton, NJ
  • Average visibility in June: 6mi

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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Princeton, New Jersey, USA

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