June weather forecast
Wheaton, MO

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Weather in June

The first month of the summer, June, is a tropical month in Wheaton, Missouri, with an average temperature ranging between min 66.2°F (19°C) and max 86°F (30°C).

Temperature

The shift into June is accompanied by a temperature increase, with the average high-temperature rising from a warm 75.6°F (24.2°C) in May to a tropical 86°F (30°C). During June, Wheaton records a consistent average nighttime temperature of 66.2°F (19°C).

Heat index

During June, the heat index is evaluated at a very hot 96.8°F (36°C). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
Consider that heat index readings are for situations in the shade and light wind. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

The average relative humidity in June is 74%.

Rainfall

In Wheaton, during June, the rain falls for 15.3 days and regularly aggregates up to 2.91" (74mm) of precipitation. Throughout the year, there are 152.1 rainfall days, and 34.45" (875mm) of precipitation is accumulated.

Snowfall

In Wheaton, snow does not fall in June through October.

Daylight

June has the longest days of the year, with an average of 14h and 36min of daylight.
On the first day of the month, sunrise is at 5:58 am and sunset at 8:29 pm. On the last day of June, in Wheaton, sunrise is at 6:00 am and sunset at 8:39 pm CDT.

Sunshine

The months with the most sunshine are June and July, with an average of 10.6h of sunshine.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: In June, the maximum UV index of 6 translates into these guidelines:
Deflect overexposure. Sun protection is a necessity. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.

Frequently asked questions

How hot is it in June?

The high-temperature, in June, in Wheaton, records 86°F (30°C), while the low-temperature is 66.2°F (19°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in June is evaluated at 96.8°F (36°C).

What is the average humidity in June?

The average relative humidity in June is 74%.

How much does it rain in June?

In June, the rain falls for 15.3 days. Throughout June, 2.91" (74mm) of precipitation is accumulated.

When it does not snow?

June through October are months without snowfall.

Does it snow in June?

In June, it doesn't snow. May is the latest month when it typically snows.

When are the longest days?

The month with the longest days is June, with an average of 14h and 36min of daylight.

What is the average length of the day in June?

In Wheaton, the average day length in June is 14h and 38min.

When is the sunrise / sunset in June?

On the first day of June, sunrise is at 5:58 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 8:39 pm CDT.

What is the month with the most sunshine in Wheaton?

The months with the most sunshine in Wheaton are June and July, with an average of 10.6h of sunshine.

How many hours of sunshine does Wheaton have in June?

The average sunshine duration in June is 10.6h.

What is the month with the highest UV index?

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 value of 6 to 7 symbolizes a high health threat 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
Wheaton, MO

Average temperature in June - Wheaton, MO
  • Average high temperature in June: 86°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (42.4°F).

  • Average low temperature in June: 66.2°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (27°F).

Average pressure in June
Wheaton, MO

Average pressure in June - Wheaton, MO
  • Average pressure in June: 29.93"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in June
Wheaton, MO

Average wind speed in June - Wheaton, MO
  • Average wind speed in June: 7.8mph

The windiest months (with the highest average wind speed) are March and April (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

Average humidity in June
Wheaton, MO

Average humidity in June - Wheaton, MO
  • Average humidity in June: 74%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, July, August and October (73%).

Average rainfall in June
Wheaton, MO

Average rainfall in June - Wheaton, MO
  • Average rainfall in June: 2.91"

The wettest month (with the highest rainfall) is May (5").
The driest month (with the least rainfall) is February (1.65").

Average rainfall days in June
Wheaton, MO

Average rainfall days in June - Wheaton, MO
  • Average rainfall days in June: 15.3 days

The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (7.4 days).

Average snowfall in June
Wheaton, MO

Average snowfall in June - Wheaton, MO
  • Average snowfall in June: 0"

The months with the highest snowfall are January and February (2.17").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in June
Wheaton, MO

Average snowfall days in June - Wheaton, MO
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in June /
Average sunshine in June
Wheaton, MO

Average daylight in June / Average sunshine in June - Wheaton, MO
  • Average daylight in June: 14h and 4min

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

  • Average sunshine in June: 10h and 4min

The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).

Average sunshine days in June
Wheaton, MO

Average sunshine days in June - Wheaton, MO
  • Average sunshine days in June: 12.3 days

The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is July (11.4 days).

Average UV index in June
Wheaton, MO

Average UV index in June - Wheaton, MO
  • 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 and December (UV index 2).

Average cloud cover in June
Wheaton, MO

Average cloud cover in June - Wheaton, MO
  • Average cloud cover in June: 27

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 26).

Average visibility in June
Wheaton, MO

Average visibility in June - Wheaton, MO
  • 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).

Wheaton, Missouri, USA

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