June weather forecast
Flat Rock, IL

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Weather in June

June, the first month of the summer in Flat Rock, is still a warm month, with an average temperature ranging between max 82°F (27.8°C) and min 65.3°F (18.5°C).

Temperature

The beginning of June marks a minor shift in the average high-temperature, moving from May's 73.8°F (23.2°C) to a still warm 82°F (27.8°C). In the month of June, Flat Rock experiences an average low-temperature of 65.3°F (18.5°C).

Heat index

The heat index value for June is computed to be a hot 87.8°F (31°C). Uninterrupted exposure and activity might result in fatigue, potentially causing heat cramps.
Research indicates the heat index considers values in shaded locales and with light winds. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', takes into account both air temperature and humidity to illustrate what people actually feel. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.

Humidity

In Flat Rock, Illinois, the average relative humidity in June is 79%.

Rainfall

In June, the rain falls for 17.2 days. Throughout June, 4.13" (105mm) of precipitation is accumulated. In Flat Rock, during the entire year, the rain falls for 162.4 days and collects up to 36.85" (936mm) of precipitation.

Snowfall

May through October are months without snowfall in Flat Rock.

Daylight

With an average of 14h and 54min of daylight, June has the longest days of the year.
On the first day of the month, sunrise is at 5:26 am and sunset at 8:10 pm. On the last day of June, sunrise is at 5:28 am and sunset at 8:20 pm CDT.

Sunshine

With an average of 10.3h of sunshine, June has the most sunshine of the year in Flat Rock.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum high daily UV index of 6 during June translates into the following directions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
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Frequently asked questions

What is the temperature in June in Flat Rock?

The high-temperature in Flat Rock, Illinois, during June is 82°F (27.8°C) and the low-temperature is 65.3°F (18.5°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in June is computed to be 87.8°F (31°C).

What is the average humidity in June in Flat Rock?

The average relative humidity in June is 79%.

How much does it rain in Flat Rock in June?

In Flat Rock, in June, it is raining for 17.2 days, with typically 4.13" (105mm) of accumulated precipitation.

When it does not snow in Flat Rock?

In Flat Rock, Illinois, snow does not fall in May through October.

When are the longest days in Flat Rock?

June has the longest days of the year, with an average of 14h and 54min of daylight.

What is the average length of the day in June in Flat Rock?

In June, the average day length in Flat Rock, Illinois, is 14h and 51min.

When is the sunrise / sunset in June in Flat Rock?

In June, on the first day of the month, sunrise is at 5:26 am and sunset at 8:10 pm. On the last day of the month, in Flat Rock, sunrise is at 5:28 am and sunset at 8:20 pm CDT.

What month has the most sunshine in Flat Rock?

The month with the most sunshine is June, with an average of 10.3h of sunshine.

How long on average sun shines in June in Flat Rock?

In June, the average sunshine duration is 10.3h.

When is the highest UV index in Flat Rock?

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

How high is the UV index in June in Flat Rock?

In Flat Rock, Illinois, the average daily maximum UV index in June is 6. A UV Index value of 6 to 7 symbolizes 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
Flat Rock, IL

Average temperature in June - Flat Rock, IL
  • Average high temperature in June: 82°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in June: 65.3°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

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Average pressure in June
Flat Rock, IL

Average pressure in June - Flat Rock, IL
  • Average pressure in June: 29.93"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in June
Flat Rock, IL

Average wind speed in June - Flat Rock, IL
  • Average wind speed in June: 7.1mph

The windiest months (with the highest average wind speed) are January and February (10mph).
The calmest months (with the lowest average wind speed) are July and August (5.9mph).

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Average humidity in June
Flat Rock, IL

Average humidity in June - Flat Rock, IL
  • Average humidity in June: 79%

The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in June
Flat Rock, IL

Average rainfall in June - Flat Rock, IL
  • Average rainfall in June: 4.13"

The wettest month (with the highest rainfall) is April (5.2").
The driest month (with the least rainfall) is September (1.89").

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Average rainfall days in June
Flat Rock, IL

Average rainfall days in June - Flat Rock, IL
  • Average rainfall days in June: 17.2 days

The month with the highest number of rainy days is May (19.8 days).
The month with the least rainy days is January (8.4 days).

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Average snowfall in June
Flat Rock, IL

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

The month with the highest snowfall is January (2.32").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in June
Flat Rock, IL

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

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in June /
Average sunshine in June
Flat Rock, IL

Average daylight in June / Average sunshine in June - Flat Rock, IL
  • Average daylight in June: 14h and 5min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in June: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

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Average sunshine days in June
Flat Rock, IL

Average sunshine days in June - Flat Rock, IL
  • Average sunshine days in June: 10 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is May (9.7 days).

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Average UV index in June
Flat Rock, IL

Average UV index in June - Flat Rock, 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, February, November and December (UV index 2).

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Average cloud cover in June
Flat Rock, IL

Average cloud cover in June - Flat Rock, IL
  • Average cloud cover in June: 30

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in June
Flat Rock, IL

Average visibility in June - Flat Rock, 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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Flat Rock, Illinois, USA

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