June weather forecastJohnsonville, IL
June
Weather in June
The first month of the summer, June, is also a moderately hot month in Johnsonville, Illinois, with an average temperature varying between 83.1°F (28.4°C) and 66°F (18.9°C).Temperature
A rise in the average high-temperature is observed during June, moving from a warm 73.9°F (23.3°C) in May to a still moderately hot 83.1°F (28.4°C). Throughout June, Johnsonville witnesses a consistent average low-temperature of 66°F (18.9°C).Heat index
The average heat index in June is calculated to be a tropical 91.4°F (33°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.In the scope of the heat index, its values resonate with shade and light wind conditions. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Humidity
The average relative humidity in June is 77%.Rainfall
In Johnsonville, Illinois, in June, it is raining for 17.4 days, with typically 3.9" (99mm) of accumulated precipitation. In Johnsonville, during the entire year, the rain falls for 167.3 days and collects up to 37.17" (944mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
June has the longest days of the year in Johnsonville, Illinois, with an average of 14h and 48min of daylight.On the first day of June in Johnsonville, Illinois, sunrise is at 5:31 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:22 pm CDT.
Sunshine
With an average of 10.5h of sunshine, June has the most sunshine of the year in Johnsonville.UV index
The months with the highest UV index in Johnsonville, Illinois, are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum high daily UV index of 6 during June translates into the following directions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Johnsonville, IL
- Average high temperature in June: 83.1°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in June: 66°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in June
Johnsonville, 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).
Average wind speed in June
Johnsonville, 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).
Average humidity in June
Johnsonville, IL
- Average humidity in June: 77%
The months with the highest relative humidity are May and July (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall in June
Johnsonville, IL
- Average rainfall in June: 3.9"
The wettest month (with the highest rainfall) is April (4.88").
The driest months (with the least rainfall) are February and September (2.09").
Average rainfall days in June
Johnsonville, IL
- Average rainfall days in June: 17.4 days
The month with the highest number of rainy days is May (19.9 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in June
Johnsonville, IL
- Average snowfall in June: 0"
The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in June
Johnsonville, IL
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (7.1 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
Johnsonville, IL
- Average daylight in June: 14h and 48min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- 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 24min).
Average sunshine days in June
Johnsonville, IL
- Average sunshine days in June: 9.1 days
The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is May (9 days).
Average UV index in June
Johnsonville, IL
- 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, November and December (UV index 2).
Average cloud cover in June
Johnsonville, IL
- Average cloud cover in June: 28
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in June
Johnsonville, 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).
