June weather forecast
Washington, IL

Weather in June

June, the first month of the summer in Washington, is a moderately hot month, with an average temperature fluctuating between 63.1°F (17.3°C) and 79.9°F (26.6°C).

Temperature

In June, the average high-temperature slightly increases from a pleasant 71.6°F (22°C) in May to a warm 79.9°F (26.6°C). The average low-temperature, in Washington, Illinois, is 63.1°F (17.3°C).

Humidity

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

Rainfall

In Washington, Illinois, during June, the rain falls for 14.3 days and regularly aggregates up to 2.17" (55mm) of precipitation. Throughout the year, there are 128.3 rainfall days, and 19.13" (486mm) of precipitation is accumulated.

Snowfall

In Washington, Illinois, snow does not fall in May through October.

Daylight

With an average of 15h and 2min of daylight, June has the longest days of the year.
On the first day of the month, sunrise is at 5:28 am and sunset at 8:22 pm. On the last day of June, sunrise is at 5:29 am and sunset at 8:32 pm CDT.

Sunshine

June has the most sunshine of the year in Washington, with an average of 10.2h of sunshine.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Washington. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 6 in June transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in June in Washington?

In June, in Washington, the average high-temperature is 79.9°F (26.6°C), and the average low-temperature is 63.1°F (17.3°C).

What is the average humidity in June in Washington?

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

How many days does it rain in June in Washington?

In Washington, in June, it is raining for 14.3 days, with typically 2.17" (55mm) of accumulated precipitation.

When it does not snow in Washington?

May through October are months without snowfall in Washington.

When are the longest days in Washington?

With an average of 15h and 2min of daylight, June has the longest days of the year in Washington, Illinois.

What is the average length of the day in June in Washington?

In June, the average day length is 15h and 2min.

When is the sunrise / sunset in June in Washington?

In June, on the first day of the month, sunrise is at 5:28 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 5:29 am and sunset at 8:32 pm CDT.

What month has the most sunshine in Washington?

June has the most sunshine of the year in Washington, Illinois, with an average of 10.2h of sunshine.

How long on average sun shines in June in Washington?

The average sunshine duration in June is 10.2h.

What is the month with the highest UV index in Washington?

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

What is the UV index reading in June in Washington?

In Washington, Illinois, the average daily maximum UV index in June is 6. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to the Sun's UV radiation.
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
Washington, IL

Average temperature in June - Washington, IL
  • Average high temperature in June: 79.9°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in June: 63.1°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

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Average pressure in June
Washington, IL

Average pressure in June - Washington, 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).

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Average wind speed in June
Washington, IL

Average wind speed in June - Washington, IL
  • Average wind speed in June: 7.8mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

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Average humidity in June
Washington, IL

Average humidity in June - Washington, IL
  • Average humidity in June: 81%

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

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Average rainfall in June
Washington, IL

Average rainfall in June - Washington, IL
  • Average rainfall in June: 2.17"

The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is November (0.94").

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Average rainfall days in June
Washington, IL

Average rainfall days in June - Washington, IL
  • Average rainfall days in June: 14.3 days

The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is January (4.4 days).

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Average snowfall in June
Washington, IL

Average snowfall in June - Washington, IL
  • Average snowfall in June: 0"

The month with the highest snowfall is January (2.68").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in June
Washington, IL

Average snowfall days in June - Washington, IL
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in June /
Average sunshine in June
Washington, IL

Average daylight in June / Average sunshine in June - Washington, 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 1min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in June
Washington, IL

Average sunshine days in June - Washington, IL
  • Average sunshine days in June: 12.7 days

The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is July (11.4 days).

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Average UV index in June
Washington, IL

Average UV index in June - Washington, 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).

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Average cloud cover in June
Washington, IL

Average cloud cover in June - Washington, IL
  • Average cloud cover in June: 31

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 30).

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Average visibility in June
Washington, IL

Average visibility in June - Washington, 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).

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