June weather forecast
Grandview, IL

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Weather in June

June, the first month of the summer in Grandview, is a moderately hot month, with an average temperature fluctuating between 81.1°F (27.3°C) and 64.6°F (18.1°C).

Temperature

A subtle rise in the average high-temperature is observed during June, adjusting from a pleasant 72.9°F (22.7°C) in May to a moderately hot 81.1°F (27.3°C). Grandview cools down to an average low-temperature of 64.6°F (18.1°C) throughout the month of June.

Heat index

The heat index for June is calculated to be a tropical 86°F (30°C). With extended exposure and activity, one might feel exhausted and experience heat cramps.
The standards for the heat index are set for locations in shade and under light breezes. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.

Humidity

In June, the average relative humidity is 80%.

Rainfall

June is the month with the most rainfall. Rain falls for 15.5 days and accumulates 2.72" (69mm) of precipitation.

Snowfall

In Grandview, snow does not fall in May through October.

Daylight

The month with the longest days is June, with an average of 14h and 54min of daylight.
On the first day of June, sunrise is at 5:31 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:30 pm CDT.

Sunshine

June has the most sunshine of the year, with an average of 10.4h of sunshine.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.
Note: An average UV index of 6 in June transforms into this advice:
Fend off overexposure. Sun protection is vital. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Stay sun-safe with clothing that is both closely woven and worn loosely.
Updated: Jun 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are June temperatures?

The average high-temperature and low-temperature during June are 81.1°F (27.3°C) and 64.6°F (18.1°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in June is calculated to be 86°F (30°C).

What is the average humidity in June?

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

What is the rainiest month?

The month with the most rainfall is June, when the rain falls for 15.5 days and typically aggregates up to 2.72" (69mm) of precipitation.

How many days does it rain in June?

In Grandview, in June, it is raining for 15.5 days, with typically 2.72" (69mm) of accumulated precipitation.

When it does not snow?

May through October are months without snowfall.

When are the longest days?

The month with the longest days is June, with an average of 14h and 54min of daylight.

How many hours of daylight does Grandview have in June?

In Grandview, the average day length in June is 14h and 57min.

When is the sunrise / sunset in June?

In June, on the first day of the month, sunrise is at 5:31 am and sunset at 8:21 pm. On the last day of the month, in Grandview, sunrise is at 5:33 am and sunset at 8:30 pm CDT.

What month has the most sunshine?

The month with the most sunshine is June, with an average of 10.4h of sunshine.

How many hours of sunshine does Grandview have in June?

In June, the average sunshine duration is 10.4h.

What is the month with the highest UV index?

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

What is the UV index reading in June?

In June, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health threat 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
Grandview, IL

Average temperature in June - Grandview, IL
  • Average high temperature in June: 81.1°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in June: 64.6°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).

Average pressure in June
Grandview, IL

Average pressure in June - Grandview, IL
  • Average pressure in June: 29.91"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in June
Grandview, IL

Average wind speed in June - Grandview, IL
  • Average wind speed in June: 7.3mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average humidity in June
Grandview, IL

Average humidity in June - Grandview, IL
  • Average humidity in June: 80%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).

Average rainfall in June
Grandview, IL

Average rainfall in June - Grandview, IL
  • Average rainfall in June: 2.72"

The wettest month (with the highest rainfall) is June (2.72").
The driest month (with the least rainfall) is December (1.18").

Average rainfall days in June
Grandview, IL

Average rainfall days in June - Grandview, IL
  • Average rainfall days in June: 15.5 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is February (5.8 days).

Average snowfall in June
Grandview, IL

Average snowfall in June - Grandview, IL
  • Average snowfall in June: 0"

The month with the highest snowfall is January (2.24").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in June
Grandview, IL

Average snowfall days in June - Grandview, IL
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (9.5 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
Grandview, IL

Average daylight in June / Average sunshine in June - Grandview, 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 24min).

  • Average sunshine in June: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in June
Grandview, IL

Average sunshine days in June - Grandview, IL
  • Average sunshine days in June: 11.8 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (11.4 days).

Average UV index in June
Grandview, IL

Average UV index in June - Grandview, 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).

Average cloud cover in June
Grandview, IL

Average cloud cover in June - Grandview, IL
  • Average cloud cover in June: 29

The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are June and September (Cloud cover 29).

Average visibility in June
Grandview, IL

Average visibility in June - Grandview, IL
  • Average visibility in June: 6mi

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

Grandview, Illinois, USA

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