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 introduces a marginal temperature uplift, with average high-temperatures adjusting from May's pleasant 72.9°F (22.7°C) to a moderately hot 81.5°F (27.5°C). The average low-temperature of 64.6°F (18.1°C) is witnessed during June.Heat index
The heat index value for June is calculated to be a tropical 87.8°F (31°C). Enduring exposure and ongoing activity could cause a sense of fatigue and subsequent heat cramps.Heat index values are typically calculated for conditions of shade and a light breeze. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'feels like', arises from combining readings of air temperature and relative moisture content. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Humidity
The average relative humidity in June is 80%.Rainfall
The month with the most rainfall in Jacksonville is June, when the rain falls for 15.8 days and typically aggregates up to 3.58" (91mm) of precipitation.Snowfall
In Jacksonville, 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 5:34 am and sunset at 8:23 pm. On the last day of June, sunrise is at 5:36 am and sunset at 8:32 pm CDT.
Sunshine
With an average of 10.3h of sunshine, June has the most sunshine of the year in Jacksonville, Illinois.UV index
The months with the highest UV index in Jacksonville 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 unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 6 in June translates into these instructions:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Frequently asked questions
What is the temperature in June in Jacksonville?
What is the average humidity in June in Jacksonville?
What is the wettest month in Jacksonville?
How much does it rain in Jacksonville in June?
When it does not snow in Jacksonville?
When are the longest days in Jacksonville?
What is the average length of the day in June in Jacksonville?
When is the sunrise / sunset in June in Jacksonville?
What month has the most sunshine in Jacksonville?
How long on average sun shines in June in Jacksonville?
What is the month with the highest UV index in Jacksonville?
What is the UV index reading in June in Jacksonville?
Average temperature in June
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
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
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
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
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
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
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
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
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
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
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
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
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).
Jacksonville, Illinois, USA
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