June weather forecast
Summit, IL

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Weather in June

The first month of the summer, June, is a warm month in Summit, Illinois, with an average temperature fluctuating between 61.5°F (16.4°C) and 75.2°F (24°C).

Temperature

The onset of June marks an increase in the average high-temperature, moving from a refreshing 65.7°F (18.7°C) in May to a moderately hot 75.2°F (24°C). Summit's nighttime temperature during June is consistently averaged at a comfortable 61.5°F (16.4°C).

Humidity

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

Rainfall

In June, in Summit, the rain falls for 13 days. Throughout June, 1.22" (31mm) of precipitation is accumulated. In Summit, Illinois, during the entire year, the rain falls for 110.8 days and collects up to 9.61" (244mm) of precipitation.

Snowfall

In Summit, snow does not fall in May through September.

Daylight

With an average of 15h and 12min of daylight, June has the longest days of the year in Summit.
On the first day of June, sunrise is at 5:18 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 5:20 am and sunset at 8:30 pm CDT.

Sunshine

In Summit, the average sunshine in June is 9.9h.

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 health risk from unsafe exposure to UV radiation for the average person.
Note: An average maximum UV index of 6 in June leads to these recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Summit in June?

June temperatures vary between a high-temperature of 75.2°F (24°C) and a low-temperature of 61.5°F (16.4°C).

What is the average humidity in June in Summit?

In June, the average relative humidity is 77%.

How much does it rain in Summit in June?

In Summit, Illinois, in June, it is raining for 13 days, with typically 1.22" (31mm) of accumulated precipitation.

When it does not snow in Summit?

In Summit, snow does not fall in May through September.

When are the longest days in Summit?

June has the longest days of the year in Summit, Illinois, with an average of 15h and 12min of daylight.

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

The average day length in June in Summit is 15h and 10min.

When are sunrise and sunset in June in Summit?

On the first day of June in Summit, Illinois, sunrise is at 5:18 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 5:20 am and sunset at 8:30 pm CDT.

How many hours of sunshine does Summit have in June?

The average sunshine duration in June in Summit is 9.9h.

When is the highest UV index in Summit?

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

How high is the UV index in June in Summit?

The average daily maximum UV index in June in Summit is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability 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
Summit, IL

Average temperature in June - Summit, IL
  • Average high temperature in June: 75.2°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (29.5°F).

  • Average low temperature in June: 61.5°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).

Average pressure in June
Summit, IL

Average pressure in June - Summit, IL
  • Average pressure in June: 29.92"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in June
Summit, IL

Average wind speed in June - Summit, IL
  • Average wind speed in June: 7.6mph

The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).

Average humidity in June
Summit, IL

Average humidity in June - Summit, IL
  • Average humidity in June: 77%

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (72%).

Average rainfall in June
Summit, IL

Average rainfall in June - Summit, IL
  • Average rainfall in June: 1.22"

The wettest month (with the highest rainfall) is May (1.38").
The driest month (with the least rainfall) is December (0.43").

Average rainfall days in June
Summit, IL

Average rainfall days in June - Summit, IL
  • Average rainfall days in June: 13 days

The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is February (4.1 days).

Average snowfall in June
Summit, IL

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

The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in June
Summit, IL

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

The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

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

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

  • Average sunshine in June: 9h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in June
Summit, IL

Average sunshine days in June - Summit, IL
  • Average sunshine days in June: 12.3 days

The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is June (12.3 days).

Average UV index in June
Summit, IL

Average UV index in June - Summit, IL
  • Average UV index in June: 6

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

Average cloud cover in June
Summit, IL

Average cloud cover in June - Summit, IL
  • Average cloud cover in June: 33

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in June
Summit, IL

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

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

Summit, Illinois, USA

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