June weather forecast
Illmo, MO

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Weather in June

The first month of the summer, June, is a tropical month in Illmo, Missouri, with an average temperature ranging between max 86°F (30°C) and min 67.5°F (19.7°C).

Temperature

Illmo's June weather shows an increase in high-temperatures, moving from May's moderately hot 76.3°F (24.6°C) to a tropical 86°F (30°C). In the month of June, the average low-temperature usually rests at a comfortable 67.5°F (19.7°C).

Heat index

The average heat index in June is computed to be a sweltering 96.8°F (36°C). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', gives an indication of how one might feel in terms of heat after considering humidity. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

In Illmo, the average relative humidity in June is 75%.

Rainfall

In Illmo, in June, it is raining for 15.6 days, with typically 2.99" (76mm) of accumulated precipitation. In Illmo, Missouri, during the entire year, the rain falls for 158.6 days and collects up to 35.59" (904mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

With an average of 14h and 42min of daylight, June has the longest days of the year in Illmo.
On the first day of the month, sunrise is at 5:38 am and sunset at 8:13 pm. On the last day of June, in Illmo, sunrise is at 5:41 am and sunset at 8:22 pm CDT.

Sunshine

The month with the most sunshine is June, with an average of 10.7h 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 estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.
Note: In June, the maximum UV index of 6 suggests these recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is June?

An average high-temperature, in June, in Illmo, is 86°F (30°C) and the average low-temperature is 67.5°F (19.7°C). The average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, in June is computed to be 96.8°F (36°C).

What is the average humidity in June?

In June, the average relative humidity is 75%.

How many days does it rain in June?

In Illmo, in June, during 15.6 rainfall days, 2.99" (76mm) of precipitation is typically accumulated.

When it does not snow?

In Illmo, snow does not fall in May through September.

When are the longest days?

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

How many hours of daylight does Illmo have in June?

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

When are sunrise and sunset in June in Illmo?

On the first day of June, sunrise is at 5:38 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 8:22 pm CDT.

What month has the most sunshine?

With an average of 10.7h of sunshine, June has the most sunshine of the year.

How long on average sun shines in June?

The average sunshine duration in June is 10.7h.

When is the highest UV index?

The months with the highest UV index are May 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 value of 6 to 7 symbolizes a high health risk from 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
Illmo, MO

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

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (41°F).

  • Average low temperature in June: 67.5°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).

Average pressure in June
Illmo, MO

Average pressure in June - Illmo, MO
  • 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
Illmo, MO

Average wind speed in June - Illmo, MO
  • Average wind speed in June: 6.4mph

The windiest months (with the highest average wind speed) are January and February (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in June
Illmo, MO

Average humidity in June - Illmo, MO
  • Average humidity in June: 75%

The months with the highest relative humidity are March and May (78%).
The month with the lowest relative humidity is October (69%).

Average rainfall in June
Illmo, MO

Average rainfall in June - Illmo, MO
  • Average rainfall in June: 2.99"

The wettest month (with the highest rainfall) is April (4.33").
The driest month (with the least rainfall) is September (1.5").

Average rainfall days in June
Illmo, MO

Average rainfall days in June - Illmo, MO
  • Average rainfall days in June: 15.6 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (9.8 days).

Average snowfall in June
Illmo, MO

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

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

Average snowfall days in June
Illmo, MO

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

The month with the highest number of snowfall days is January (3.7 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
Illmo, MO

Average daylight in June / Average sunshine in June - Illmo, MO
  • 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 42min).

  • Average sunshine in June: 10h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in June
Illmo, MO

Average sunshine days in June - Illmo, MO
  • Average sunshine days in June: 12.4 days

The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is July (11.9 days).

Average UV index in June
Illmo, MO

Average UV index in June - Illmo, 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, February and December (UV index 2).

Average cloud cover in June
Illmo, MO

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

The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June, August and September (Cloud cover 27).

Average visibility in June
Illmo, MO

Average visibility in June - Illmo, 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).

Illmo, Missouri, USA

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