May weather forecast
Yorkville, IL

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Weather in May

The last month of the spring, May, is a pleasant month in Yorkville, Illinois, with an average temperature fluctuating between 69.6°F (20.9°C) and 52.3°F (11.3°C).

Temperature

An escalation in the average high-temperature is seen with the onset of May, moving from a refreshing 57.4°F (14.1°C) in April to a pleasant 69.6°F (20.9°C). In May, Yorkville records an average nighttime temperature of 52.3°F (11.3°C).

Humidity

In May, the average relative humidity is 77%.

Rainfall

May is the month with the most rainfall in Yorkville. Rain falls for 19.4 days and accumulates 4.88" (124mm) of precipitation.

Snowfall

In Yorkville, snow does not fall in May through September.

Daylight

In Yorkville, the average length of the day in May is 14h and 33min.
On the first day of May, sunrise is at 5:49 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 5:21 am and sunset at 8:21 pm CDT.

Sunshine

In May, the average sunshine in Yorkville, Illinois, is 8.5h.

UV index

In Yorkville, Illinois, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The UV index of 5 in May translates into these instructions:
Ensure safety - Sun damage prevention is strongly urged. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
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Frequently asked questions

What is the usual temperature for Yorkville in May?

In May, in Yorkville, the average high-temperature is 69.6°F (20.9°C), and the average low-temperature is 52.3°F (11.3°C).

What is the average humidity in May in Yorkville?

In Yorkville, the average relative humidity in May is 77%.

What is the rainiest month in Yorkville?

The month with the most rainfall in Yorkville is May, when the rain falls for 19.4 days and typically aggregates up to 4.88" (124mm) of precipitation.

How many days does it rain in May in Yorkville?

In Yorkville, Illinois, in May, during 19.4 rainfall days, 4.88" (124mm) of precipitation is typically accumulated.

When it does not snow in Yorkville?

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

Does it snow in Yorkville in May?

In May, in Yorkville, Illinois, it doesn't snow. April is the latest month when it typically snows.

How many hours of daylight does Yorkville have in May?

The average day length in May in Yorkville is 14h and 33min.

When is the sunrise / sunset in May in Yorkville?

On the first day of May in Yorkville, Illinois, sunrise is at 5:49 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 5:21 am and sunset at 8:21 pm CDT.

How long on average sun shines in May in Yorkville?

In Yorkville, Illinois, the average sunshine duration in May is 8.5h.

How high is the UV index in May in Yorkville?

In May, the average daily maximum UV index in Yorkville is 5. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to 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 May
Yorkville, IL

Average temperature in May - Yorkville, IL
  • Average high temperature in May: 69.6°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (28.2°F).

  • Average low temperature in May: 52.3°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).

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Average pressure in May
Yorkville, IL

Average pressure in May - Yorkville, IL
  • Average pressure in May: 29.96"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).

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Average wind speed in May
Yorkville, IL

Average wind speed in May - Yorkville, IL
  • Average wind speed in May: 8.3mph

The windiest months (with the highest average wind speed) are January and April (9.8mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average humidity in May
Yorkville, IL

Average humidity in May - Yorkville, IL
  • Average humidity in May: 77%

The months with the highest relative humidity are July and August (84%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in May
Yorkville, IL

Average rainfall in May - Yorkville, IL
  • Average rainfall in May: 4.88"

The wettest month (with the highest rainfall) is May (4.88").
The driest month (with the least rainfall) is November (1.73").

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Average rainfall days in May
Yorkville, IL

Average rainfall days in May - Yorkville, IL
  • Average rainfall days in May: 19.4 days

The month with the highest number of rainy days is July (20.3 days).
The month with the least rainy days is February (6 days).

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Average snowfall in May
Yorkville, IL

Average snowfall in May - Yorkville, IL
  • Average snowfall in May: 0"

The month with the highest snowfall is January (4.88").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in May
Yorkville, IL

Average snowfall days in May - Yorkville, IL
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (13.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
Yorkville, IL

Average daylight in May / Average sunshine in May - Yorkville, IL
  • Average daylight in May: 14h and 4min

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 12min).

  • Average sunshine in May: 8h and 3min

The months with the most sunshine are June and August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average sunshine days in May
Yorkville, IL

Average sunshine days in May - Yorkville, IL
  • Average sunshine days in May: 9.3 days

The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is July (7.2 days).

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Average UV index in May
Yorkville, IL

Average UV index in May - Yorkville, IL
  • Average UV index in May: 5

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

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Average cloud cover in May
Yorkville, IL

Average cloud cover in May - Yorkville, IL
  • Average cloud cover in May: 43

The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 34).

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Average visibility in May
Yorkville, IL

Average visibility in May - Yorkville, IL
  • Average visibility in May: 6mi

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

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Yorkville, Illinois, USA

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