June weather forecastSeneca, IL

June

Weather in June

The first month of the summer, June, is a moderately hot month in Seneca, Illinois, with an average temperature ranging between min 61.5°F (16.4°C) and max 78.8°F (26°C).

Temperature

As Seneca welcomes June, the average high-temperature displays a subtle shift, adjusting from an agreeable 70.7°F (21.5°C) in May to a moderately hot 78.8°F (26°C). During June, the average low-temperature is a refreshing 61.5°F (16.4°C).

Humidity

In June, the average relative humidity in Seneca is 81%.

Rainfall

In Seneca, in June, it is raining for 17.3 days, with typically 3.62" (92mm) of accumulated precipitation. In Seneca, during the entire year, the rain falls for 154.1 days and collects up to 31.73" (806mm) of precipitation.

Snowfall

In Seneca, Illinois, snow does not fall in May through September.

Daylight

With an average of 15h and 6min of daylight, June has the longest days of the year in Seneca.
On the first day of the month, sunrise is at 5:23 am and sunset at 8:21 pm. On the last day of June, in Seneca, Illinois, sunrise is at 5:24 am and sunset at 8:31 pm CDT.

Sunshine

The months with the most sunshine in Seneca are June and August, with an average of 9.8h of sunshine.

UV index

The months with the highest UV index in Seneca are June and July, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: In June, an average UV index of 6 transforms into the following instructions:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Experience reduced UV exposure by about half when donning a wide-brim hat.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature and low-temperature in Seneca, Illinois, during June are 78.8°F (26°C) and 61.5°F (16.4°C) respectively.

In June, the average relative humidity in Seneca, Illinois, is 81%.

In Seneca, in June, during 17.3 rainfall days, 3.62" (92mm) of precipitation is typically accumulated.

May through September are months without snowfall.

The month with the longest days is June, with an average of 15h and 6min of daylight.

In June, the average day length is 15h and 7min.

In June, on the first day of the month, sunrise is at 5:23 am and sunset at 8:21 pm. On the last day of the month, in Seneca, sunrise is at 5:24 am and sunset at 8:31 pm CDT.

June and August, with an average of 9.8h of sunshine, are months with the most sunshine.

The average sunshine duration in June in Seneca, Illinois, is 9.8h.

The months with the highest UV index in Seneca are June and July, with an average maximum UV index of 6.

The average daily maximum UV index in June in Seneca, Illinois, is 6. A UV Index estimate of 6 to 7 represents a high health threat from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Seneca, IL

  • Average high temperature in June: 78.8°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.1°F).

  • Average low temperature in June: 61.5°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).

Average pressure in June
Seneca, IL

  • Average pressure in June: 29.92"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in June
Seneca, IL

  • Average wind speed in June: 7.5mph

The windiest months (with the highest average wind speed) are January and April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

Average humidity in June
Seneca, IL

  • Average humidity in June: 81%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).

Average rainfall in June
Seneca, IL

  • Average rainfall in June: 3.62"

The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is December (1.65").

Average rainfall days in June
Seneca, IL

  • Average rainfall days in June: 17.3 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (5.8 days).

Average snowfall in June
Seneca, IL

  • Average snowfall in June: 0"

The month with the highest snowfall is February (4.57").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in June
Seneca, IL

  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (11.9 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
Seneca, IL

  • Average daylight in June: 15h and 6min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in June: 9h and 48min

The months with the most sunshine are June and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in June
Seneca, IL

  • Average sunshine days in June: 10.1 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is June (10.1 days).

Average UV index in June
Seneca, IL

  • Average UV index in June: 6

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in June
Seneca, IL

  • Average cloud cover in June: 33

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 32).

Average visibility in June
Seneca, IL

  • Average visibility in June: 6mi

The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).