June weather forecast
Princeton, IL

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Weather in June

June, the first month of the summer in Princeton, is a moderately hot month, with an average temperature varying between 61.5°F (16.4°C) and 78.6°F (25.9°C).

Temperature

As May gives way to June, the average high-temperature displays a slight ascent, adjusting from a pleasant 70.3°F (21.3°C) to a warm 78.6°F (25.9°C). During June, the temperature is averaged to a low of 61.5°F (16.4°C) at night.

Humidity

In Princeton, the average relative humidity in June is 82%.

Rainfall

In Princeton, in June, during 15.8 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. Throughout the year, there are 130 rainfall days, and 17.64" (448mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

With an average of 15h and 6min of daylight, June has the longest days of the year.
On the first day of June in Princeton, sunrise is at 5:26 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 5:28 am and sunset at 8:35 pm CDT.

Sunshine

The months with the most sunshine are June and July, with an average of 9.7h of sunshine.

UV index

In June, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: A maximum UV index of 5 in June translates into the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.

Frequently asked questions

What are June temperatures?

The average high-temperature and low-temperature during June are 78.6°F (25.9°C) and 61.5°F (16.4°C) respectively.

What is the average humidity in June?

The average relative humidity in June is 82%.

How many days does it rain in June?

In Princeton, in June, during 15.8 rainfall days, 1.89" (48mm) of precipitation is typically accumulated.

When it does not snow?

May through September are months without snowfall.

When are the longest days?

June has the longest days of the year, with an average of 15h and 6min of daylight.

What is the average length of the day in June in Princeton?

In June, the average day length is 15h and 7min.

What time are sunrise and sunset in June?

On the first day of June, sunrise is at 5:26 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 5:28 am and sunset at 8:35 pm CDT.

What is the month with the most sunshine?

June and July, with an average of 9.7h of sunshine, are months with the most sunshine.

How many hours of sunshine does Princeton have in June?

The average sunshine duration in June is 9.7h.

How high is the UV index in June?

The average daily maximum UV index in June is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
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, IL

Average temperature in June - Princeton, IL
  • Average high temperature in June: 78.6°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in June: 61.5°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).

Average pressure in June
Princeton, IL

Average pressure in June - Princeton, IL
  • Average pressure in June: 29.91"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in June
Princeton, IL

Average wind speed in June - Princeton, IL
  • Average wind speed in June: 7.7mph

The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

Average humidity in June
Princeton, IL

Average humidity in June - Princeton, IL
  • Average humidity in June: 82%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).

Average rainfall in June
Princeton, IL

Average rainfall in June - Princeton, IL
  • Average rainfall in June: 1.89"

The wettest month (with the highest rainfall) is May (2.91").
The driest month (with the least rainfall) is January (0.75").

Average rainfall days in June
Princeton, IL

Average rainfall days in June - Princeton, IL
  • Average rainfall days in June: 15.8 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (4.5 days).

Average snowfall in June
Princeton, IL

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

The month with the highest snowfall is January (2.09").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in June
Princeton, IL

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

The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are May, June, July and August (0 days).

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

Average daylight in June / Average sunshine in June - Princeton, IL
  • Average daylight in June: 15h and 1min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in June: 9h and 4min

The months with the most sunshine are June and July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in June
Princeton, IL

Average sunshine days in June - Princeton, IL
  • Average sunshine days in June: 11.8 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is June (11.8 days).

Average UV index in June
Princeton, IL

Average UV index in June - Princeton, IL
  • Average UV index in June: 5

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in June
Princeton, IL

Average cloud cover in June - Princeton, IL
  • Average cloud cover in June: 34

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 32).

Average visibility in June
Princeton, IL

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

The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).

Princeton, Illinois, USA

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