June weather forecast
Union, IL

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Weather in June

June, the first month of the summer in Union, is a warm month, with an average temperature varying between 76.5°F (24.7°C) and 59°F (15°C).

Temperature

Union experiences a minor temperature shift with the start of June, with average high-temperatures moving from a comfortable 67.6°F (19.8°C) in May to a moderately hot 76.5°F (24.7°C). Union reports a consistent average low-temperature of 59°F (15°C) throughout June nights.

Humidity

In June, the average relative humidity is 81%.

Rainfall

June is the month with the most rainfall in Union. Rain falls for 18.6 days and accumulates 4.21" (107mm) of precipitation.

Snowfall

In Union, 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.
On the first day of the month, sunrise is at 5:19 am and sunset at 8:24 pm. On the last day of June, sunrise is at 5:21 am and sunset at 8:34 pm CDT.

Sunshine

In Union, the average sunshine in June is 9.5h.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 5 in June interprets into the following advice:
Take necessary precautions - Protection from skin and eye injury is mandatory. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
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 Union in June?

The average high-temperature and low-temperature in Union during June are 76.5°F (24.7°C) and 59°F (15°C) respectively.

What is the average humidity in June in Union?

The average relative humidity in June in Union, Illinois, is 81%.

What is the rainiest month in Union?

The month with the most rainfall in Union, Illinois, is June, when the rain falls for 18.6 days and typically aggregates up to 4.21" (107mm) of precipitation.

How much does it rain in Union in June?

In Union, Illinois, in June, during 18.6 rainfall days, 4.21" (107mm) of precipitation is typically accumulated.

When it does not snow in Union?

May through September are months without snowfall in Union.

When are the longest days in Union?

With an average of 15h and 12min of daylight, June has the longest days of the year in Union.

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

In June, the average day length in Union is 15h and 13min.

When are sunrise and sunset in June in Union?

In June, on the first day of the month, sunrise is at 5:19 am and sunset at 8:24 pm. On the last day of the month, in Union, sunrise is at 5:21 am and sunset at 8:34 pm CDT.

How many hours of sunshine does Union have in June?

In June, the average sunshine duration in Union, Illinois, is 9.5h.

When is the highest UV index in Union?

May through August, with an average maximum UV index of 5, are months with the highest UV index in Union.

What is the UV index intensity in June in Union?

In Union, Illinois, the average daily maximum UV index in June is 5. A UV Index reading 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
Union, IL

Average temperature in June - Union, IL
  • Average high temperature in June: 76.5°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (26.1°F).

  • Average low temperature in June: 59°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (13.8°F).

Average pressure in June
Union, IL

Average pressure in June - Union, 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
Union, IL

Average wind speed in June - Union, IL
  • Average wind speed in June: 7.3mph

The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

Average humidity in June
Union, IL

Average humidity in June - Union, IL
  • Average humidity in June: 81%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (76%).

Average rainfall in June
Union, IL

Average rainfall in June - Union, IL
  • Average rainfall in June: 4.21"

The wettest month (with the highest rainfall) is June (4.21").
The driest months (with the least rainfall) are February and November (1.5").

Average rainfall days in June
Union, IL

Average rainfall days in June - Union, IL
  • Average rainfall days in June: 18.6 days

The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is February (4.8 days).

Average snowfall in June
Union, IL

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

The month with the highest snowfall is January (5.28").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in June
Union, IL

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

The month with the highest number of snowfall days is January (12.3 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
Union, IL

Average daylight in June / Average sunshine in June - Union, 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 3min

The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in June
Union, IL

Average sunshine days in June - Union, IL
  • Average sunshine days in June: 9.5 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (9.5 days).

Average UV index in June
Union, IL

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

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in June
Union, IL

Average cloud cover in June - Union, IL
  • Average cloud cover in June: 37

The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are August and September (Cloud cover 35).

Average visibility in June
Union, IL

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

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

Union, Illinois, USA

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