June weather forecast
Winthrop Harbor, IL

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Weather in June

June, the first month of the summer in Winthrop Harbor, is a pleasant month, with an average temperature ranging between max 70.5°F (21.4°C) and min 58.6°F (14.8°C).

Temperature

June witnesses an increase in the average high-temperature, moving from a refreshing 61.3°F (16.3°C) in May to a pleasant 70.5°F (21.4°C). Throughout June, the average low-temperature dips to a moderate 58.6°F (14.8°C).

Humidity

The average relative humidity in June in Winthrop Harbor is 81%.

Rainfall

The wettest months in Winthrop Harbor are June and August, with an average 2.68" (68mm) of rainfall.

Snowfall

In Winthrop Harbor, snow does not fall in May through September.

Daylight

June has the longest days of the year in Winthrop Harbor, with an average of 15h and 12min of daylight.
On the first day of June in Winthrop Harbor, sunrise is at 5:16 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 5:17 am and sunset at 8:32 pm CDT.

Sunshine

In Winthrop Harbor, the average sunshine in June is 9.8h.

UV index

In June, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: During June, 5 as the daily maximum UV index converts into the following advice:
Undertake protective steps - Recommendations to avoid sunburn are issued. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are June temperatures in Winthrop Harbor?

In June, the average high-temperature and low-temperature in Winthrop Harbor, Illinois, are 70.5°F (21.4°C) and 58.6°F (14.8°C) respectively.

What is the average humidity in June in Winthrop Harbor?

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

What is the rainiest month in Winthrop Harbor?

The months with the most rainfall in Winthrop Harbor are June and August, with an average 2.68" (68mm) of precipitation.

How many days does it rain in June in Winthrop Harbor?

In Winthrop Harbor, Illinois, in June, it is raining for 14.8 days, with typically 2.68" (68mm) of accumulated precipitation.

When it does not snow in Winthrop Harbor?

May through September are months without snowfall in Winthrop Harbor, Illinois.

When are the longest days in Winthrop Harbor?

June has the longest days of the year in Winthrop Harbor, Illinois, with an average of 15h and 12min of daylight.

How many hours of daylight does Winthrop Harbor have in June?

In June, the average day length in Winthrop Harbor is 15h and 15min.

What time are sunrise and sunset in June in Winthrop Harbor?

On the first day of June, sunrise is at 5:16 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 5:17 am and sunset at 8:32 pm CDT.

How many hours of sunshine does Winthrop Harbor have in June?

In June, the average sunshine duration in Winthrop Harbor is 9.8h.

What is the UV index intensity in June in Winthrop Harbor?

In June, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Winthrop Harbor, IL

Average temperature in June - Winthrop Harbor, IL
  • Average high temperature in June: 70.5°F

The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (27.9°F).

  • Average low temperature in June: 58.6°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 (18.3°F).

Average pressure in June
Winthrop Harbor, IL

Average pressure in June - Winthrop Harbor, IL
  • Average pressure in June: 29.92"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in June
Winthrop Harbor, IL

Average wind speed in June - Winthrop Harbor, IL
  • Average wind speed in June: 8.1mph

The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).

Average humidity in June
Winthrop Harbor, IL

Average humidity in June - Winthrop Harbor, IL
  • Average humidity in June: 81%

The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are October and November (75%).

Average rainfall in June
Winthrop Harbor, IL

Average rainfall in June - Winthrop Harbor, IL
  • Average rainfall in June: 2.68"

The wettest months (with the highest rainfall) are June and August (2.68").
The driest month (with the least rainfall) is December (0.91").

Average rainfall days in June
Winthrop Harbor, IL

Average rainfall days in June - Winthrop Harbor, IL
  • Average rainfall days in June: 14.8 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is February (5.2 days).

Average snowfall in June
Winthrop Harbor, IL

Average snowfall in June - Winthrop Harbor, IL
  • Average snowfall in June: 0"

The month with the highest snowfall is February (2.6").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in June
Winthrop Harbor, IL

Average snowfall days in June - Winthrop Harbor, IL
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in June /
Average sunshine in June
Winthrop Harbor, IL

Average daylight in June / Average sunshine in June - Winthrop Harbor, IL
  • Average daylight in June: 15h and 1min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in June: 9h and 5min

The months with the most sunshine are July and August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in June
Winthrop Harbor, IL

Average sunshine days in June - Winthrop Harbor, IL
  • Average sunshine days in June: 12.2 days

The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is July (10.8 days).

Average UV index in June
Winthrop Harbor, IL

Average UV index in June - Winthrop Harbor, IL
  • Average UV index in June: 5

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in June
Winthrop Harbor, IL

Average cloud cover in June - Winthrop Harbor, IL
  • Average cloud cover in June: 33

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in June
Winthrop Harbor, IL

Average visibility in June - Winthrop Harbor, 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).

Winthrop Harbor, Illinois, USA

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