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
As June sets, the average high-temperature shows a slight increase, moving up from an agreeable 72.9°F (22.7°C) in May to a warm 81.5°F (27.5°C). During June, South Jacksonville sees a mean low-temperature of 64.6°F (18.1°C).Heat index
June's average heat index is evaluated at a hot 87.8°F (31°C). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.Take note of the fact that heat index values are based on shaded circumstances with light airflows. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are extremely significant for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Humidity
In June, the average relative humidity is 80%.Rainfall
June is the month with the most rainfall in South Jacksonville, Illinois. Rain falls for 15.8 days and accumulates 3.58" (91mm) of precipitation.Snowfall
In South Jacksonville, Illinois, snow does not fall in May through September.Daylight
With an average of 14h and 54min of daylight, June has the longest days of the year in South Jacksonville.On the first day of the month, sunrise is at 5:34 am and sunset at 8:23 pm. On the last day of June, in South Jacksonville, sunrise is at 5:36 am and sunset at 8:32 pm CDT.
Sunshine
The month with the most sunshine is June, with an average of 10.3h of sunshine.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: The UV index of 6 during June leads to these advisories:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Boost your sun resistance with garments that are densely woven yet spacious.
Frequently asked questions
What is the average June temperature in South Jacksonville?
What is the average humidity in June in South Jacksonville?
What is the wettest month in South Jacksonville?
How many days does it rain in June in South Jacksonville?
When it does not snow in South Jacksonville?
When are the longest days in South Jacksonville?
How many hours of daylight does South Jacksonville have in June?
What time are sunrise and sunset in June in South Jacksonville?
What month has the most sunshine in South Jacksonville?
How long on average sun shines in June in South Jacksonville?
When is the highest UV index in South Jacksonville?
How high is the UV index in June in South Jacksonville?
Average temperature in June
South Jacksonville, IL
- Average high temperature in June: 81.5°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in June: 64.6°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure in June
South Jacksonville, IL
- Average pressure in June: 29.91"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in June
South Jacksonville, IL
- Average wind speed in June: 7.1mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).
Average humidity in June
South Jacksonville, IL
- Average humidity in June: 80%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in June
South Jacksonville, IL
- Average rainfall in June: 3.58"
The wettest month (with the highest rainfall) is June (3.58").
The driest month (with the least rainfall) is December (1.54").
Average rainfall days in June
South Jacksonville, IL
- Average rainfall days in June: 15.8 days
The month with the highest number of rainy days is May (18 days).
The months with the least rainy days are January and February (7.1 days).
Average snowfall in June
South Jacksonville, IL
- Average snowfall in June: 0"
The month with the highest snowfall is January (3.58").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in June
South Jacksonville, IL
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (9.6 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
South Jacksonville, 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 18min).
Average sunshine days in June
South Jacksonville, IL
- Average sunshine days in June: 10.5 days
The month with the most sunshine days is December (18.5 days).
The month with the least sunshine days is June (10.5 days).
Average UV index in June
South Jacksonville, 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).
Average cloud cover in June
South Jacksonville, 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, July, August and September (Cloud cover 29).
Average visibility in June
South Jacksonville, 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).
South Jacksonville, Illinois, USA
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