May weather forecast
Champaign, IL

An old building that works as an auditorium within the University of Illinois in Champaign
An old building that works as an auditorium within the University of Illinois in Champaign

Weather in May

May, the last month of the spring in Champaign, is a pleasant month, with an average temperature fluctuating between 56.1°F (13.4°C) and 72.1°F (22.3°C).

Temperature

In May, the average high-temperature increases from a comfortable 61.3°F (16.3°C) in April to an agreeable 72.1°F (22.3°C). The average low-temperature, in May, is 56.1°F (13.4°C).

Humidity

In Champaign, the average relative humidity in May is 76%.

Rainfall

In May, the rain falls for 15.3 days. Throughout May, 2.2" (56mm) of precipitation is accumulated. Throughout the year, there are 129.9 rainfall days, and 18.15" (461mm) of precipitation is accumulated.

Snowfall

In Champaign, snow does not fall in May through October.

Daylight

The average length of the day in May is 14h and 25min.
On the first day of May, sunrise is at 5:52 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 5:26 am and sunset at 8:15 pm CDT.

Sunshine

The average sunshine in May is 9h.

UV index

The average daily maximum UV index in May in Champaign is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 5 in May interpret into the following advice:
Take precautions - Protection against skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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 average humidity in May in Champaign?

In May, the average relative humidity in Champaign is 76%.

How many days does it rain in May in Champaign?

In Champaign, in May, during 15.3 rainfall days, 2.2" (56mm) of precipitation is typically accumulated.

When it does not snow in Champaign?

May through October are months without snowfall in Champaign.

Does it snow in Champaign in May?

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

How many hours of daylight does Champaign have in May?

In May, the average day length in Champaign is 14h and 25min.

When are sunrise and sunset in May in Champaign?

On the first day of May in Champaign, sunrise is at 5:52 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 5:26 am and sunset at 8:15 pm CDT.

How many hours of sunshine does Champaign have in May?

In May, the average sunshine duration in Champaign, Illinois, is 9h.

What is the UV index intensity in May in Champaign?

In May, the average daily maximum UV index in Champaign, Illinois, is 5. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.

Average temperature in May
Champaign, IL

Average temperature in May - Champaign, IL
  • Average high temperature in May: 72.1°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.8°F).

  • Average low temperature in May: 56.1°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

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Average pressure in May
Champaign, IL

Average pressure in May - Champaign, IL
  • Average pressure in May: 29.96"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in May
Champaign, IL

Average wind speed in May - Champaign, IL
  • Average wind speed in May: 8.9mph

The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

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Average humidity in May
Champaign, IL

Average humidity in May - Champaign, IL
  • Average humidity in May: 76%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in May
Champaign, IL

Average rainfall in May - Champaign, IL
  • Average rainfall in May: 2.2"

The wettest month (with the highest rainfall) is April (2.24").
The driest month (with the least rainfall) is September (0.94").

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Average rainfall days in May
Champaign, IL

Average rainfall days in May - Champaign, IL
  • Average rainfall days in May: 15.3 days

The month with the highest number of rainy days is May (15.3 days).
The months with the least rainy days are January and February (6 days).

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Average snowfall in May
Champaign, IL

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

The month with the highest snowfall is January (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in May
Champaign, IL

Average snowfall days in May - Champaign, IL
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Champaign, IL
  • Average daylight in May: 14h and 25min

The month with the longest days is June (Average daylight: 14h and 59min).
The month with the shortest days is December (Average daylight: 9h and 22min).

  • Average sunshine in May: 9h

The month with the most sunshine is June (Average sunshine: 10.2h).
The month with the least sunshine is January (Average sunshine: 4h).

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Average sunshine days in May
Champaign, IL

Average sunshine days in May - Champaign, IL
  • Average sunshine days in May: 12.6 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (11.8 days).

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Average UV index in May
Champaign, IL

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

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 May
Champaign, IL

Average cloud cover in May - Champaign, IL
  • Average cloud cover in May: 40

The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are August and September (Cloud cover 31).

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Average visibility in May
Champaign, IL

Average visibility in May - Champaign, IL
  • Average visibility in May: 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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