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 onset of June marks an increase in the average high-temperature, moving from a warm 76.5°F (24.7°C) in May to a still moderately hot 85.6°F (29.8°C). Joppa's average low-temperature in the month of June is recorded at a comfortable 66.7°F (19.3°C).Heat index
June's mean heat index is estimated at a torrid 96.8°F (36°C). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.Understand that the heat index values take into account shaded locations and mild winds. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', takes into account both air temperature and humidity to illustrate what people actually feel. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant 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.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
In June, the average relative humidity is 76%.Rainfall
In Joppa, during June, the rain falls for 15.1 days and regularly aggregates up to 2.91" (74mm) of precipitation. Throughout the year, there are 160.7 rainfall days, and 36.73" (933mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall in Joppa.Daylight
June has the longest days of the year, with an average of 14h and 42min of daylight.On the first day of the month, sunrise is at 5:36 am and sunset at 8:10 pm. On the last day of June, sunrise is at 5:38 am and sunset at 8:19 pm CDT.
Sunshine
The months with the most sunshine are June and July, with an average of 10.6h of sunshine.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 6 during June leads to these advisories:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in June?
What is the average humidity in June?
How much 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 is the sunrise / sunset in June?
What is the month with the most sunshine?
How many hours of sunshine does Joppa have in June?
When is the highest UV index?
What is the UV index reading in June?
Average temperature in June
Joppa, IL
- Average high temperature in June: 85.6°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (41.4°F).
- Average low temperature in June: 66.7°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (28°F).
Average pressure in June
Joppa, IL
- Average pressure in June: 29.95"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in June
Joppa, IL
- Average wind speed in June: 6.3mph
The windiest months (with the highest average wind speed) are January, March and April (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).
Average humidity in June
Joppa, IL
- Average humidity in June: 76%
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in June
Joppa, IL
- Average rainfall in June: 2.91"
The wettest month (with the highest rainfall) is April (4.29").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in June
Joppa, IL
- Average rainfall days in June: 15.1 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is October (10.2 days).
Average snowfall in June
Joppa, IL
- Average snowfall in June: 0"
The month with the highest snowfall is February (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in June
Joppa, IL
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in June /
Average sunshine in June
Joppa, IL
- Average daylight in June: 14h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in June: 10h and 4min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in June
Joppa, IL
- Average sunshine days in June: 12.8 days
The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is May (11 days).
Average UV index in June
Joppa, 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 and December (UV index 2).
Average cloud cover in June
Joppa, IL
- Average cloud cover in June: 27
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is September (Cloud cover 26).
Average visibility in June
Joppa, 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).
Joppa, Illinois, USA
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