June weather forecastDelavan, IL

June

Weather in June

June, the first month of the summer in Delavan, is a moderately hot month, with temperature in the range of an average low of 63.9°F (17.7°C) and an average high of 80.6°F (27°C).

Temperature

June comes with a subtle rise, with the average high-temperature adjusting from a pleasant 72.1°F (22.3°C) in May to a moderately hot 80.6°F (27°C). Delavan experiences a mean low-temperature of 63.9°F (17.7°C) during June.

Heat index

In June, the heat index is evaluated at a hot 86°F (30°C). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.

Humidity

In June, the average relative humidity is 80%.

Rainfall

In Delavan, Illinois, during June, the rain falls for 15.7 days and regularly aggregates up to 2.28" (58mm) of precipitation. In Delavan, during the entire year, the rain falls for 131.4 days and collects up to 20.08" (510mm) of precipitation.

Snowfall

May through October are months without snowfall in Delavan.

Daylight

With an average of 15h and 0min of daylight, June has the longest days of the year.
On the first day of the month, sunrise is at 5:29 am and sunset at 8:22 pm. On the last day of June, sunrise is at 5:31 am and sunset at 8:32 pm CDT.

Sunshine

With an average of 10.2h of sunshine, June has the most sunshine of the year.

UV index

The months with the highest UV index 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 exposure to the Sun's UV radiation for the average person.
Note: In June, a daily UV index of 6 turns into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.

Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature during June is 80.6°F (27°C) and the low-temperature is 63.9°F (17.7°C). In June, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 86°F (30°C).

In Delavan, the average relative humidity in June is 80%.

In Delavan, in June, it is raining for 15.7 days, with typically 2.28" (58mm) of accumulated precipitation.

May through October are months without snowfall.

With an average of 15h and 0min of daylight, June has the longest days of the year.

In June, the average day length is 15h and 1min.

In June, on the first day of the month, sunrise is at 5:29 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 5:31 am and sunset at 8:32 pm CDT.

The month with the most sunshine is June, with an average of 10.2h of sunshine.

In June, the average sunshine duration is 10.2h.

The months with the highest UV index are June through August, with an average maximum UV index of 6.

The average daily maximum UV index in June is 6. A UV Index estimate of 6 to 7 represents a high health threat from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M June J A S O N D

May

June

Jul

Average high temperature

72.1°F

80.6°F

82°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

9.5mph

8.3mph

7mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

17.7

15.7

15.5

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

11.8

Average UV index

Average cloud cover

Average visibility

Average temperature in June
Delavan, IL

Average high temperature in June: 80.6°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (31.5°F).

Average low temperature in June: 63.9°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in June
Delavan, IL

Average pressure in June: 29.91"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in June
Delavan, IL

Average wind speed in June: 7.7mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

Average humidity in June
Delavan, IL

Average humidity in June: 80%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (71%).

Average rainfall in June
Delavan, IL

Average rainfall in June: 2.28"

The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is February (1.02").

Average rainfall days in June
Delavan, IL

Average rainfall days in June: 15.7 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (5.1 days).

Average snowfall in June
Delavan, IL

Average snowfall in June: 0"

The month with the highest snowfall is January (2.87").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in June
Delavan, IL

Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (8.4 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
Delavan, IL

Average daylight in June: 15h and 0min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

Average sunshine in June: 10h and 12min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in June
Delavan, IL

Average sunshine days in June: 12 days

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (11.8 days).

Average UV index in June
Delavan, 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
Delavan, IL

Average cloud cover in June: 32

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 30).

Average visibility in June
Delavan, 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).