June weather forecast
Saint Charles, IL

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Weather in June

June, the first month of the summer in Saint Charles, is a moderately hot month, with an average temperature varying between 77.5°F (25.3°C) and 60.1°F (15.6°C).

Temperature

The transition to June introduces an increase in the average high-temperature, shifting from a pleasant 68.2°F (20.1°C) in May to a warm 77.5°F (25.3°C). An average low-temperature of 60.1°F (15.6°C) is observed during the June nights.

Humidity

In June, the average relative humidity is 80%.

Rainfall

In June, the rain falls for 12.3 days. Throughout June, 1.06" (27mm) of precipitation is accumulated. Throughout the year, in Saint Charles, there are 101.9 rainfall days, and 8.58" (218mm) 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 12min of daylight.
On the first day of the month, sunrise is at 5:19 am and sunset at 8:22 pm. On the last day of June, in Saint Charles, Illinois, sunrise is at 5:21 am and sunset at 8:32 pm CDT.

Sunshine

The average sunshine in June is 9.6h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: An average UV index of 6 in June transforms into this advice:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Saint Charles in June?

The high-temperature in Saint Charles during June is 77.5°F (25.3°C) and the low-temperature is 60.1°F (15.6°C).

What is the average humidity in June in Saint Charles?

In Saint Charles, the average relative humidity in June is 80%.

How many days does it rain in June in Saint Charles?

In June, in Saint Charles, Illinois, the rain falls for 12.3 days. Throughout June, 1.06" (27mm) of precipitation is accumulated.

When it does not snow in Saint Charles?

In Saint Charles, snow does not fall in May through September.

When are the longest days in Saint Charles?

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

How many hours of daylight does Saint Charles have in June?

In Saint Charles, the average day length in June is 15h and 11min.

When are sunrise and sunset in June in Saint Charles?

In June, on the first day of the month, sunrise is at 5:19 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 5:21 am and sunset at 8:32 pm CDT.

How many hours of sunshine does Saint Charles have in June?

In Saint Charles, Illinois, the average sunshine duration in June is 9.6h.

What is the month with the highest UV index in Saint Charles?

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

How high is the UV index in June in Saint Charles?

In June, the average daily maximum UV index in Saint Charles, Illinois, is 6. A UV Index value of 6 to 7 symbolizes a high health risk 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
Saint Charles, IL

Average temperature in June - Saint Charles, IL
  • Average high temperature in June: 77.5°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (27.9°F).

  • Average low temperature in June: 60.1°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 (16.2°F).

Average pressure in June
Saint Charles, IL

Average pressure in June - Saint Charles, 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
Saint Charles, IL

Average wind speed in June - Saint Charles, IL
  • Average wind speed in June: 7.2mph

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

Average humidity in June
Saint Charles, IL

Average humidity in June - Saint Charles, IL
  • Average humidity in June: 80%

The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (74%).

Average rainfall in June
Saint Charles, IL

Average rainfall in June - Saint Charles, IL
  • Average rainfall in June: 1.06"

The wettest month (with the highest rainfall) is May (1.26").
The driest months (with the least rainfall) are November and December (0.39").

Average rainfall days in June
Saint Charles, IL

Average rainfall days in June - Saint Charles, IL
  • Average rainfall days in June: 12.3 days

The month with the highest number of rainy days is May (12.4 days).
The month with the least rainy days is January (3.4 days).

Average snowfall in June
Saint Charles, IL

Average snowfall in June - Saint Charles, IL
  • Average snowfall in June: 0"

The month with the highest snowfall is January (1.14").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in June
Saint Charles, IL

Average snowfall days in June - Saint Charles, IL
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (7.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in June /
Average sunshine in June
Saint Charles, IL

Average daylight in June / Average sunshine in June - Saint Charles, 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 4min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in June
Saint Charles, IL

Average sunshine days in June - Saint Charles, IL
  • Average sunshine days in June: 13.3 days

The month with the most sunshine days is December (22.4 days).
The month with the least sunshine days is June (13.3 days).

Average UV index in June
Saint Charles, IL

Average UV index in June - Saint Charles, IL
  • 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 and December (UV index 1).

Average cloud cover in June
Saint Charles, IL

Average cloud cover in June - Saint Charles, IL
  • Average cloud cover in June: 35

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is September (Cloud cover 32).

Average visibility in June
Saint Charles, IL

Average visibility in June - Saint Charles, IL
  • Average visibility in June: 6mi

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

Saint Charles, Illinois, USA

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