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 start of June brings a subtle shift in the average high-temperature, edging up from May's 73.9°F (23.3°C) to a still moderately hot 82°F (27.8°C). Throughout the month of June, Sumner witnesses an average low-temperature of 65.5°F (18.6°C).Heat index
June's heat index is calculated to be a tropical 87.8°F (31°C). Continued exposure and engagement in activity might trigger tiredness and subsequently heat cramps.Take into consideration that the heat index values are calculated for shade and light wind conditions. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', offers an insight into how hot it feels when we factor in moisture content. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are largely significant for babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
Humidity
In June, the average relative humidity in Sumner is 78%.Rainfall
In June, in Sumner, the rain falls for 15.1 days. Throughout June, 3.54" (90mm) of precipitation is accumulated. In Sumner, during the entire year, the rain falls for 160.3 days and collects up to 34.33" (872mm) of precipitation.Snowfall
In Sumner, snow does not fall in May through October.Daylight
June has the longest days of the year in Sumner, Illinois, with an average of 14h and 48min of daylight.On the first day of the month, sunrise is at 5:28 am and sunset at 8:10 pm. On the last day of June, in Sumner, sunrise is at 5:30 am and sunset at 8:20 pm CDT.
Sunshine
With an average of 10.6h of sunshine, June has the most sunshine of the year.UV index
The months with the highest UV index in Sumner are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.Note: The UV index of 6 during June leads to these advisories:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Frequently asked questions
What is the average June temperature in Sumner?
What is the average humidity in June in Sumner?
How much does it rain in Sumner in June?
When it does not snow in Sumner?
When are the longest days in Sumner?
What is the average length of the day in June in Sumner?
When are sunrise and sunset in June in Sumner?
What month has the most sunshine in Sumner?
How many hours of sunshine does Sumner have in June?
What is the month with the highest UV index in Sumner?
What is the UV index reading in June in Sumner?
Average temperature in June
Sumner, IL
- Average high temperature in June: 82°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in June: 65.5°F
The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure in June
Sumner, IL
- Average pressure in June: 29.94"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in June
Sumner, IL
- Average wind speed in June: 7mph
The windiest month (with the highest average wind speed) is February (10.1mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in June
Sumner, IL
- Average humidity in June: 78%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (70%).
Average rainfall in June
Sumner, IL
- Average rainfall in June: 3.54"
The wettest month (with the highest rainfall) is April (4.69").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in June
Sumner, IL
- Average rainfall days in June: 15.1 days
The month with the highest number of rainy days is May (19.6 days).
The month with the least rainy days is February (9.4 days).
Average snowfall in June
Sumner, IL
- Average snowfall in June: 0"
The month with the highest snowfall is January (1.69").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in June
Sumner, IL
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (6.8 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
Sumner, IL
- Average daylight in June: 14h and 5min
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 4min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in June
Sumner, IL
- Average sunshine days in June: 10.8 days
The month with the most sunshine days is October (18 days).
The month with the least sunshine days is May (9.4 days).
Average UV index in June
Sumner, 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
Sumner, IL
- Average cloud cover in June: 28
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in June
Sumner, 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).
Sumner, Illinois, USA
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