June weather forecast
Mason, IL

Weather in June

The first month of the summer, June, is still a warm month in Mason, Illinois, with an average temperature ranging between min 65.5°F (18.6°C) and max 81.7°F (27.6°C).

Temperature

In June, the average high-temperature marginally rises from 73.6°F (23.1°C) in May to a still warm 81.7°F (27.6°C). The average low-temperature, in June, is 65.5°F (18.6°C).

Heat index

In June, the average heat index is computed to be a hot 87.8°F (31°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'felt air temperature', 'apparent temperature', or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (differences in body mass, height, and shape, clothing, pregnancy). Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In Mason, the average relative humidity in June is 78%.

Rainfall

In Mason, during 14.5 rainfall days, 3.11" (79mm) of precipitation is typically accumulated. Throughout the year, there are 141.3 rainfall days, and 26.77" (680mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall in Mason.

Daylight

June has the longest days of the year, with an average of 14h and 52min of daylight.
On the first day of June in Mason, sunrise is at 5:30 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:24 pm CDT.

Sunshine

With an average of 10.5h of sunshine, June has the most sunshine of the year in Mason.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 6 in June transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in June in Mason?

The average high-temperature, in June, in Mason, Illinois, is 81.7°F (27.6°C), while the average low-temperature is 65.5°F (18.6°C). in June, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, is computed to be 87.8°F (31°C).

What is the average humidity in June in Mason?

In Mason, Illinois, the average relative humidity in June is 78%.

How much does it rain in Mason in June?

In Mason, Illinois, during June, the rain falls for 14.5 days and regularly aggregates up to 3.11" (79mm) of precipitation.

When it does not snow in Mason?

April through October are months without snowfall.

When are the longest days in Mason?

June has the longest days of the year, with an average of 14h and 52min of daylight.

How many hours of daylight does Mason have in June?

In June, the average day length in Mason, Illinois, is 14h and 52min.

When are sunrise and sunset in June in Mason?

In June, on the first day of the month, sunrise is at 5:30 am and sunset at 8:13 pm. On the last day of the month, in Mason, sunrise is at 5:32 am and sunset at 8:24 pm CDT.

What month has the most sunshine in Mason?

The month with the most sunshine in Mason is June, with an average of 10.5h of sunshine.

How many hours of sunshine does Mason have in June?

In June, the average sunshine duration is 10.5h.

What are the months with the highest UV index in Mason?

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

What is the UV index reading in June in Mason?

In June, the average daily maximum UV index in Mason, Illinois, is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Mason, IL

Average temperature in June - Mason, IL
  • Average high temperature in June: 81.7°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in June: 65.5°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

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Average pressure in June
Mason, IL

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in June
Mason, IL

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

The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

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Average humidity in June
Mason, IL

Average humidity in June - Mason, IL
  • Average humidity in June: 78%

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

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Average rainfall in June
Mason, IL

Average rainfall in June - Mason, IL
  • Average rainfall in June: 3.11"

The wettest month (with the highest rainfall) is April (3.35").
The driest month (with the least rainfall) is February (1.38").

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Average rainfall days in June
Mason, IL

Average rainfall days in June - Mason, IL
  • Average rainfall days in June: 14.5 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (7.3 days).

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Average snowfall in June
Mason, IL

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

The month with the highest snowfall is January (2.01").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in June
Mason, IL

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

The month with the highest number of snowfall days is January (5.3 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
Mason, IL

Average daylight in June / Average sunshine in June - Mason, IL
  • Average daylight in June: 14h and 52min

The month with the longest days is June (Average daylight: 14h and 52min).
The month with the shortest days is December (Average daylight: 9h and 29min).

  • Average sunshine in June: 10h and 30min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

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Average sunshine days in June
Mason, IL

Average sunshine days in June - Mason, IL
  • Average sunshine days in June: 12.4 days

The month with the most sunshine days is December (19.5 days).
The month with the least sunshine days is May (10.8 days).

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Average UV index in June
Mason, IL

Average UV index in June - Mason, 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
Mason, IL

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

The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June and September (Cloud cover 29).

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Average visibility in June
Mason, IL

Average visibility in June - Mason, 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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