June weather forecast
Rock Island, IL

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Weather in June

The first month of the summer, June, is a warm month in Rock Island, Illinois, with an average temperature varying between 62.1°F (16.7°C) and 79°F (26.1°C).

Temperature

June's arrival signals a modest temperature shift, moving from an agreeable 70.3°F (21.3°C) in May to a warm 79°F (26.1°C). In Rock Island, June nights witness a steady temperature drop to a comfortable 62.1°F (16.7°C).

Humidity

The average relative humidity in June is 81%.

Rainfall

In Rock Island, in June, it is raining for 16.6 days, with typically 3.39" (86mm) of accumulated precipitation. Throughout the year, there are 138.1 rainfall days, and 27.32" (694mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

The month with the longest days is June, with an average of 15h and 6min of daylight.
On the first day of the month, sunrise is at 5:30 am and sunset at 8:30 pm. On the last day of June, sunrise is at 5:32 am and sunset at 8:40 pm CDT.

Sunshine

In Rock Island, Illinois, the average sunshine in June is 9.7h.

UV index

The average daily maximum UV index in June is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: In June, an average UV index of 5 transforms into the following instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Updated: Jul 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Rock Island in June?

In June, in Rock Island, the average high-temperature is 79°F (26.1°C), and the average low-temperature is 62.1°F (16.7°C).

What is the average humidity in June?

In June, the average relative humidity is 81%.

How many days does it rain in June in Rock Island?

In Rock Island, in June, during 16.6 rainfall days, 3.39" (86mm) of precipitation is typically accumulated.

When it does not snow?

In Rock Island, snow does not fall in May through September.

When are the longest days?

The month with the longest days is June, with an average of 15h and 6min of daylight.

What is the average length of the day in June?

In June, the average day length is 15h and 8min.

When is the sunrise / sunset in June?

On the first day of June, sunrise is at 5:30 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:40 pm CDT.

How many hours of sunshine does Rock Island have in June?

The average sunshine duration in June is 9.7h.

What is the UV index intensity in June?

In June, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to 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
Rock Island, IL

Average temperature in June - Rock Island, IL
  • Average high temperature in June: 79°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (28°F).

  • Average low temperature in June: 62.1°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).

Average pressure in June
Rock Island, IL

Average pressure in June - Rock Island, IL
  • Average pressure in June: 29.9"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in June
Rock Island, IL

Average wind speed in June - Rock Island, IL
  • Average wind speed in June: 7.8mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).

Average humidity in June
Rock Island, IL

Average humidity in June - Rock Island, IL
  • Average humidity in June: 81%

The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (71%).

Average rainfall in June
Rock Island, IL

Average rainfall in June - Rock Island, IL
  • Average rainfall in June: 3.39"

The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is February (1.1").

Average rainfall days in June
Rock Island, IL

Average rainfall days in June - Rock Island, IL
  • Average rainfall days in June: 16.6 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (4.3 days).

Average snowfall in June
Rock Island, IL

Average snowfall in June - Rock Island, IL
  • Average snowfall in June: 0"

The month with the highest snowfall is January (3.98").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in June
Rock Island, IL

Average snowfall days in June - Rock Island, IL
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (10.9 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
Rock Island, IL

Average daylight in June / Average sunshine in June - Rock Island, 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 month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in June
Rock Island, IL

Average sunshine days in June - Rock Island, IL
  • Average sunshine days in June: 12 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (11.4 days).

Average UV index in June
Rock Island, IL

Average UV index in June - Rock Island, IL
  • Average UV index in June: 5

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

Average cloud cover in June
Rock Island, IL

Average cloud cover in June - Rock Island, IL
  • Average cloud cover in June: 34

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in June
Rock Island, IL

Average visibility in June - Rock Island, 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).

Rock Island, Illinois, USA

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