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
The shift from May to June sees a slight increase in the average high-temperature, transitioning from an agreeable 73°F (22.8°C) to a warm 81.1°F (27.3°C). June brings Mattoon a consistent average low-temperature of 64.2°F (17.9°C).Heat index
The heat index value for June is appraised at a hot 86°F (30°C). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.Bear in mind that the heat index values are determined for shaded areas and light breezes. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', combines both the air temperature and the humidity level to give a perceived human temperature. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Humidity
In June, the average relative humidity in Mattoon, Illinois, is 79%.Rainfall
In Mattoon, in June, it is raining for 15.6 days, with typically 2.76" (70mm) of accumulated precipitation. In Mattoon, Illinois, during the entire year, the rain falls for 148 days and collects up to 25.63" (651mm) of precipitation.Snowfall
In Mattoon, snow does not fall in May through September.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, in Mattoon, sunrise is at 5:29 am and sunset at 8:24 pm CDT.
Sunshine
With an average of 10.3h of sunshine, June has the most sunshine of the year in Mattoon.UV index
The months with the highest UV index in Mattoon are June through August, with an average maximum UV index of 6. 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: The UV index of 6 in June translates into these instructions:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Frequently asked questions
What is the average June temperature in Mattoon?
What is the average humidity in June in Mattoon?
How many days does it rain in June in Mattoon?
When it does not snow in Mattoon?
When are the longest days in Mattoon?
How many hours of daylight does Mattoon have in June?
What time are sunrise and sunset in June in Mattoon?
What month has the most sunshine in Mattoon?
How many hours of sunshine does Mattoon have in June?
What are the months with the highest UV index in Mattoon?
What is the UV index reading in June in Mattoon?
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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