Contents
- Weather in June
- Frequently asked questions
- Average temperature in June
- Average pressure in June
- Average wind speed in June
- Average humidity in June
- Average rainfall in June
- Average rainfall days in June
- Average snowfall in June
- Average snowfall days in June
- Average daylight in June
- Average sunshine in June
- Average sunshine days in June
- Average UV index in June
- Average cloud cover in June
- Average visibility in June
Weather in June
Temperature
June's arrival coincides with a subtle temperature rise, moving from May's pleasant 73°F (22.8°C) to a moderately hot 81.1°F (27.3°C). In Mattoon, the average nighttime temperature during June is an enjoyable 64.2°F (17.9°C).Heat index
The heat index value for June is calculated to be a tropical 86°F (30°C). Extended exposure and activity might lead to tiredness, potentially resulting in heat cramps.It is crucial to understand that heat index figures are for shade and gentle wind conditions. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', measures the perceived warmth when incorporating the humidity present in the air. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
In June, the average relative humidity is 79%.Rainfall
In Mattoon, during June, the rain falls for 15.6 days and regularly aggregates up to 2.76" (70mm) of precipitation. In Mattoon, during the entire year, the rain falls for 148 days and collects up to 25.63" (651mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
June has the longest days of the year, with an average of 14h and 54min of daylight.On the first day of the month, sunrise is at 5:27 am and sunset at 8:15 pm. On the last day of June, sunrise is at 5:29 am and sunset at 8:24 pm CDT.
Sunshine
The month with the most sunshine is June, with an average of 10.3h of sunshine.UV index
June 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 hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In June, the maximum UV index of 6 suggests these recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are June temperatures?
What is the average humidity in June?
How many days does it rain in June?
When it does not snow?
When are the longest days?
What is the average length of the day in June?
When are sunrise and sunset in June?
What month has the most sunshine?
How many hours of sunshine does Mattoon have in June?
What is the month with the highest UV index?
How high is the UV index in June?
Average temperature in June
Mattoon, IL
- Average high temperature in June: 81.1°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in June: 64.2°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure in June
Mattoon, 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).
Average wind speed in June
Mattoon, IL
- Average wind speed in June: 7.4mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity in June
Mattoon, IL
- Average humidity in June: 79%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (70%).
Average rainfall in June
Mattoon, IL
- Average rainfall in June: 2.76"
The wettest month (with the highest rainfall) is April (3.31").
The driest month (with the least rainfall) is February (1.3").
Average rainfall days in June
Mattoon, IL
- Average rainfall days in June: 15.6 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in June
Mattoon, IL
- Average snowfall in June: 0"
The month with the highest snowfall is December (2.13").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in June
Mattoon, IL
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (8.1 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
Mattoon, 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 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in June
Mattoon, IL
- Average sunshine days in June: 11.5 days
The month with the most sunshine days is October (18.3 days).
The month with the least sunshine days is July (10.6 days).
Average UV index in June
Mattoon, IL
- Average UV index in June: 6
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in June
Mattoon, IL
- Average cloud cover in June: 31
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in June
Mattoon, 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).
Mattoon, Illinois, USA
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