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 85.6°F (29.8°C) and 66.2°F (19°C).

Temperature

The beginning of June marks a shift in the average high-temperature, moving from May's warm 75.7°F (24.3°C) to a still moderately hot 85.6°F (29.8°C). Grand Chain, during June, witnesses an average low-temperature of 66.2°F (19°C).

Heat index

June's average heat index is appraised at a very hot 96.8°F (36°C). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

In June, the average relative humidity is 76%.

Rainfall

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

Snowfall

April through October are months without snowfall.

Daylight

With an average of 14h and 42min of daylight, June has the longest days of the year.
On the first day of June, 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.

Sunshine

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

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In June, the maximum UV index of 6 suggests these recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. 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. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.

Frequently asked questions

Is it hot during June?

The high-temperature, in June, in Grand Chain, records 85.6°F (29.8°C), while the low-temperature is 66.2°F (19°C). The average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, in June is appraised at 96.8°F (36°C).

What is the average humidity in June?

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

What is the rainiest month?

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

How many days does it rain in June?

In Grand Chain, in June, it is raining for 12.5 days, with typically 1.5" (38mm) of accumulated precipitation.

When it does not snow?

April through October are months without snowfall.

When are the longest days?

June has the longest days of the year, with an average of 14h and 42min of daylight.

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

In June, the average day length is 14h and 41min.

When are sunrise and sunset in June?

On the first day of June in Grand Chain, Illinois, 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 is the month with the most sunshine?

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

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

In Grand Chain, the average sunshine duration in June is 10.4h.

When is the highest UV index in Grand Chain?

May 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?

The average daily maximum UV index in June is 6. A UV Index reading of 6 to 7 represents a high health risk 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
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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Grand Chain, Illinois, USA

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