Monthly weather forecast and climate
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
January, the same as December, in Champaign, Illinois, is another subzero cold winter month, with temperature in the range of an average low of 20.5°F (-6.4°C) and an average high of 31.8°F (-0.1°C). The coldest month is January, with an average high-temperature of 31.8°F (-0.1°C) and an average low-temperature of 20.5°F (-6.4°C). Weather in January »

February, the last month of the winter, in Champaign, is a cold month, with average temperature ranging between max 37°F (2.8°C) and min 24.3°F (-4.3°C). In Champaign, the average high-temperature is essentially the same as in January - a wintry 37°F (2.8°C). Weather in February »

March, the first month of the spring, in Champaign, is a chilly month, with average temperature varying between 49.5°F (9.7°C) and 34.7°F (1.5°C). In Champaign, the average high-temperature in March increases, from a wintry 37°F (2.8°C) in February, to a chilly 49.5°F (9.7°C). Weather in March »

April is an enjoyable spring month in Champaign, Illinois, with average temperature varying between 45.7°F (7.6°C) and 61.3°F (16.3°C). In April, the average high-temperature increases, from a chilly 49.5°F (9.7°C) in March, to a comfortable 61.3°F (16.3°C). Weather in April »

The last month of the spring, May, is a pleasant month in Champaign, Illinois, with average temperature varying between 72.1°F (22.3°C) and 56.1°F (13.4°C). In May, the average high-temperature rises, from an enjoyable 61.3°F (16.3°C) in April, to a pleasant 72.1°F (22.3°C). Weather in May »

June, the first month of the summer, in Champaign, is a moderately hot month, with temperature in the range of an average low of 63.9°F (17.7°C) and an average high of 80.1°F (26.7°C). In Champaign, the average high-temperature in June slightly increases, from a pleasant 72.1°F (22.3°C) in May, to a warm 80.1°F (26.7°C). Weather in June »

July, like June, in Champaign, Illinois, is another warm summer month, with average temperature ranging between min 65.1°F (18.4°C) and max 81.1°F (27.3°C). With an average high-temperature of 81.1°F (27.3°C) and an average low-temperature of 65.1°F (18.4°C), July is the warmest month. The average heat index is appraised at a tropical 87.8°F (31°C). Weather in July »

The last month of the summer, August, is also a moderately hot month in Champaign, Illinois, with average temperature fluctuating between 63.3°F (17.4°C) and 80.6°F (27°C). In Champaign, Illinois, the average high-temperature is almost the same as in July - a still moderately hot 80.6°F (27°C). Weather in August »

September, the first month of the autumn, in Champaign, is also a moderately hot month, with average temperature ranging between max 76.1°F (24.5°C) and min 58.3°F (14.6°C). In September, the average high-temperature is relatively the same as in August - a still warm 76.1°F (24.5°C). Weather in September »

October, like September, in Champaign, Illinois, is another comfortable autumn month, with temperature in the range of an average high of 63.5°F (17.5°C) and an average low of 47.8°F (8.8°C). In October, the average high-temperature decreases, from a warm 76.1°F (24.5°C) in September, to a comfortable 63.5°F (17.5°C). Weather in October »

November, the last month of the autumn, in Champaign, is also a frosty month, with average temperature ranging between min 36°F (2.2°C) and max 49.1°F (9.5°C). In Champaign, the average high-temperature plummets, from a comfortable 63.5°F (17.5°C) in October, to a frosty 49.1°F (9.5°C). Weather in November »

December, the first month of the winter, in Champaign, is still a cold month, with average temperature fluctuating between 37.6°F (3.1°C) and 27.7°F (-2.4°C). In December, the average high-temperature decreases, from a chilly 49.1°F (9.5°C) in November, to a cold 37.6°F (3.1°C). Weather in December »

What is the coldest month in Champaign?

The coldest month in Champaign, Illinois, is January, with an average high-temperature of 31.8°F (-0.1°C) and an average low-temperature of 20.5°F (-6.4°C).

How many days does it rain in Champaign?

Throughout the year, in Champaign, Illinois, there are 129.9 rainfall days, and 18.15" (461mm) of precipitation is accumulated.

When does it snow in Champaign?

January through April, November and December are months with snowfall in Champaign.

How many days does it snow in Champaign?

Throughout the year, in Champaign, there are 27.1 snowfall days, and 5.91" (150mm) of snow is accumulated.

What is the snowiest month in Champaign?

The month with the most snowfall in Champaign, Illinois, is January when snow falls for 8.7 days and typically aggregates up to 1.85" (47mm) of snow.

What is the month with the least sunshine in Champaign?

With an average of 4h of sunshine, January has the least sunshine of the year in Champaign.

What are the months with the lowest UV index in Champaign?

Months with the lowest UV index in Champaign, Illinois, are January, February, November and December, with an average maximum UV index of 2.

What is the wettest month in Champaign?

April is the month with the most rainfall in Champaign, Illinois. Rain falls for 13.8 days and accumulates 2.24" (57mm) of precipitation.

When it does not snow in Champaign?

May through October are months without snowfall in Champaign.

When are the longest days in Champaign?

The month with the longest days in Champaign is June, with an average of 15h of daylight.

What month has the most sunshine in Champaign?

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

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

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

What is the warmest month in Champaign?

July is the warmest month, with an average high-temperature of 81.1°F (27.3°C) and an average low-temperature of 65.1°F (18.4°C).

What is the most humid month in Champaign?

The most humid month in Champaign is July, with an average relative humidity of 85%.

What is the driest month in Champaign?

The month with the least rainfall in Champaign, Illinois, is September when the rain falls for 10.4 days and typically collects 0.94" (24mm) of precipitation.

What is the least humid month in Champaign?

October is the least humid month, with an average relative humidity of 70%.

What is the month with the shortest days in Champaign?

With an average of 9.4h of daylight, December has the shortest days of the year.
Average temperature - Champaign, IL
Average pressure - Champaign, IL

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

Average wind speed - Champaign, IL

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).

Average rainfall - Champaign, IL

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

Average rainfall days - Champaign, IL

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

Average snowfall - Champaign, IL
Average snowfall days - Champaign, IL

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

Average daylight / Average sunshine - Champaign, IL
Average sunshine days - Champaign, IL

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

Average UV index - Champaign, IL
Average visibility - Champaign, IL

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