June weather forecast
Grand Chain, IL

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Weather in June

The first month of the summer, June, is also a moderately hot month in Grand Chain, Illinois, with an average temperature fluctuating between 66.2°F (19°C) and 85.6°F (29.8°C).

Temperature

The onset of June brings a rise in the average high-temperature, elevating from 75.7°F (24.3°C) in May to a still warm 85.6°F (29.8°C). In Grand Chain, an average temperature of 66.2°F (19°C) is noted during June nights.

Heat index

June's average heat index is evaluated at a very hot 96.8°F (36°C). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', determines the feeling of heat when you account for the relative humidity. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

The average relative humidity in June is 76%.

Rainfall

June is the month with the most rainfall in Grand Chain. Rain falls for 12.5 days and accumulates 1.5" (38mm) of precipitation.

Snowfall

In Grand Chain, snow does not fall in April through October.

Daylight

With an average of 14h and 42min of daylight, June has the longest days of the year in Grand Chain, Illinois.
On the first day of the month, sunrise is at 5:36 am and sunset at 8:11 pm. On the last day of June, sunrise is at 5:39 am and sunset at 8:20 pm CDT.

Sunshine

June and July, with an average of 10.4h of sunshine, are months with the most sunshine.

UV index

The months with the highest UV index in Grand Chain are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: During June, 6 as the daily maximum UV index converts into the following advice:
Guard against overexposure. Protection from sun-induced harm is essential. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
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Frequently asked questions

How hot is it in Grand Chain in June?

In June, the average high-temperature and low-temperature in Grand Chain, Illinois, are 85.6°F (29.8°C) and 66.2°F (19°C) respectively. In June, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is evaluated at 96.8°F (36°C).

What is the average humidity in June in Grand Chain?

In Grand Chain, Illinois, the average relative humidity in June is 76%.

What is the wettest month in Grand Chain?

June is the month with the most rainfall. Rain falls for 12.5 days and accumulates 1.5" (38mm) of precipitation.

How much does it rain in Grand Chain in June?

In June, in Grand Chain, the rain falls for 12.5 days. Throughout June, 1.5" (38mm) of precipitation is accumulated.

When it does not snow in Grand Chain?

April through October are months without snowfall.

When are the longest days in Grand Chain?

The month with the longest days is June, with an average of 14h and 42min of daylight.

How many hours of daylight does Grand Chain have in June?

In Grand Chain, Illinois, the average day length in June is 14h and 41min.

When are sunrise and sunset in June in Grand Chain?

On the first day of June in Grand Chain, sunrise is at 5:36 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 5:39 am and sunset at 8:20 pm CDT.

What are the months with the most sunshine in Grand Chain?

June and July, with an average of 10.4h of sunshine, are months with the most sunshine in Grand Chain, Illinois.

How many hours of sunshine does Grand Chain have in June?

The average sunshine duration in June in Grand Chain, Illinois, is 10.4h.

What are the months with the highest UV index in Grand Chain?

The months with the highest UV index in Grand Chain are May through August, with an average maximum UV index of 6.

What is the UV index intensity in June in Grand Chain?

In June, the average daily maximum UV index in Grand Chain, Illinois, is 6. A UV Index estimate of 6 to 7 represents a high hazard to health 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
Grand Chain, IL

Average temperature in June - Grand Chain, IL
  • Average high temperature in June: 85.6°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.1°F).

  • Average low temperature in June: 66.2°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27°F).

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Average pressure in June
Grand Chain, IL

Average pressure in June - Grand Chain, IL
  • Average pressure in June: 29.94"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in June
Grand Chain, IL

Average wind speed in June - Grand Chain, IL
  • Average wind speed in June: 6.3mph

The windiest months (with the highest average wind speed) are January and February (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

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Average humidity in June
Grand Chain, IL

Average humidity in June - Grand Chain, IL
  • Average humidity in June: 76%

The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in June
Grand Chain, IL

Average rainfall in June - Grand Chain, IL
  • Average rainfall in June: 1.5"

The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is September (0.47").

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Average rainfall days in June
Grand Chain, IL

Average rainfall days in June - Grand Chain, IL
  • Average rainfall days in June: 12.5 days

The month with the highest number of rainy days is July (13.1 days).
The months with the least rainy days are January, February and December (7.3 days).

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Average snowfall in June
Grand Chain, IL

Average snowfall in June - Grand Chain, IL
  • Average snowfall in June: 0"

The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in June
Grand Chain, IL

Average snowfall days in June - Grand Chain, IL
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (3.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in June /
Average sunshine in June
Grand Chain, IL

Average daylight in June / Average sunshine in June - Grand Chain, IL
  • Average daylight in June: 14h and 4min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in June: 10h and 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).

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Average sunshine days in June
Grand Chain, IL

Average sunshine days in June - Grand Chain, IL
  • Average sunshine days in June: 14.8 days

The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is June (14.8 days).

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Average UV index in June
Grand Chain, IL

Average UV index in June - Grand Chain, IL
  • Average UV index in June: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in June
Grand Chain, IL

Average cloud cover in June - Grand Chain, IL
  • Average cloud cover in June: 29

The months with the most cloud cover are January and February (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 28).

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Average visibility in June
Grand Chain, IL

Average visibility in June - Grand Chain, 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).

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Grand Chain, Illinois, USA

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