Climate and monthly weather forecast
Winfield, IL

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Weather in January

January, like December, is a freezing cold winter month in Winfield, Illinois, with an average temperature varying between 28°F (-2.2°C) and 16.7°F (-8.5°C). January is the coldest month, with the temperature often reaching an average high of 28°F (-2.2°C) and an average low of 16.7°F (-8.5°C). Weather in January »

Weather in February

The last month of the winter, February, is a cold month in Winfield, Illinois, with an average temperature fluctuating between 32.2°F (0.1°C) and 19.8°F (-6.8°C). In the transition from January to February, Winfield reports an average high-temperature of an icy 32.2°F (0.1°C), indicating a close resemblance to the prior month. Weather in February »

Weather in March

March, the first month of the spring in Winfield, is a frosty month, with an average temperature ranging between max 45°F (7.2°C) and min 30.7°F (-0.7°C). March's arrival is marked by an increase in the average high-temperature, moving from an icy 32.2°F (0.1°C) in February to a frosty 45°F (7.2°C). Weather in March »

Weather in April

April is a moderate spring month in Winfield, Illinois, with an average temperature varying between 40.3°F (4.6°C) and 56.3°F (13.5°C). The rise of average high-temperatures is seen in April, with an increase from a chilly 45°F (7.2°C) in March to a moderate 56.3°F (13.5°C). Weather in April »

Weather in May

May, the last month of the spring in Winfield, is an agreeable month, with an average temperature fluctuating between 68.5°F (20.3°C) and 51.8°F (11°C). May's arrival brings a temperature shift, moving from a refreshing 56.3°F (13.5°C) in April to a pleasant 68.5°F (20.3°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Winfield, Illinois, with an average temperature ranging between max 78.1°F (25.6°C) and min 60.8°F (16°C). June shows a rise in the average high-temperature, moving from May's agreeable 68.5°F (20.3°C) to a warm 78.1°F (25.6°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Winfield, Illinois, with an average temperature ranging between max 81.7°F (27.6°C) and min 65.3°F (18.5°C). The average temperatures reach their apex in July, averaging 81.7°F (27.6°C) at the high end and 65.3°F (18.5°C) at the low end. In July, the average heat index is appraised at a tropical 87.8°F (31°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Winfield, Illinois, with an average temperature fluctuating between 64°F (17.8°C) and 80.4°F (26.9°C). Winfield's shift into August sets the average high-temperature at a still warm 80.4°F (26.9°C), a figure that deviates only slightly from July's 81.7°F (27.6°C). Weather in August »

Weather in September

September, the first month of the autumn in Winfield, is also a moderately hot month, with an average temperature ranging between min 57.4°F (14.1°C) and max 73.6°F (23.1°C). In September, the average high-temperature marginally decreases from 80.4°F (26.9°C) in August to a still warm 73.6°F (23.1°C). Weather in September »

Weather in October

October, the same as September, in Winfield, Illinois, is a moderate autumn month, with an average temperature varying between 45.5°F (7.5°C) and 60.4°F (15.8°C). A moderate decline in the average high-temperature is seen during October, decreasing from a moderately hot 73.6°F (23.1°C) in September to a refreshing 60.4°F (15.8°C). Weather in October »

Weather in November

November, the last month of the autumn in Winfield, is also a frosty month, with an average temperature varying between 45.5°F (7.5°C) and 33.3°F (0.7°C). With the onset of November, Winfield experiences a distinct temperature drop, with the average high-temperature reducing from October's mild 60.4°F (15.8°C) to a chilly 45.5°F (7.5°C). Weather in November »

Weather in December

December, the first month of the winter in Winfield, is also an icy month, with an average temperature fluctuating between 24.3°F (-4.3°C) and 34.3°F (1.3°C). In the transition to December, Winfield observes a drop in the average high-temperature, moving from a chilly 45.5°F (7.5°C) in November to an icy 34.3°F (1.3°C). Weather in December »
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months in Winfield?

The lowest temperatures in Winfield, Illinois, are recorded in January, with averages reaching a high of 28°F (-2.2°C) and a low of 16.7°F (-8.5°C).

What is the most humid month in Winfield?

The months with the highest humidity are January and February, with an average relative humidity of 83%.

How much does it rain in Winfield?

In Winfield, during the entire year, the rain falls for 164.3 days and collects up to 33.78" (858mm) of precipitation.

When does it snow in Winfield?

Months with snowfall in Winfield, Illinois, are January through May, October through December.

When does it snow the most in Winfield?

The month with the most snowfall in Winfield is January, when snow falls for 13.1 days and typically aggregates up to 5.87" (149mm) of snow.

How much does it snow in Winfield?

In Winfield, Illinois, during the entire year, snow falls for 47 days and aggregates up to 20.2" (513mm) of snow.

What is the month with the least sunshine in Winfield?

The month with the least sunshine is January, with an average of 3.7h of sunshine.

What is the month with the lowest UV index in Winfield?

The month with the lowest UV index in Winfield, Illinois, is January, with an average maximum UV index of 1.

When is Daylight Saving Time (DST) in Winfield?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Winfield, Illinois, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.

What is the rainiest month in Winfield?

May is the month with the most rainfall in Winfield, Illinois. Rain falls for 19.2 days and accumulates 4.45" (113mm) of precipitation.

When it does not snow in Winfield?

June through September are months without snowfall in Winfield.

When are the longest days in Winfield?

The month with the longest days is June, with an average of 15h and 12min of daylight.

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

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

What part of the year is the hottest in Winfield?

Winfield's warmest month, July, generally records average temperatures ranging from a high of 81.7°F (27.6°C) to a low of 65.3°F (18.5°C).

What month has the most sunshine in Winfield?

The month with the most sunshine is August, with an average of 9.9h of sunshine.

What is the least humid month in Winfield?

With an average relative humidity of 73%, October is the least humid month.

What is the driest month in Winfield?

November and December are months with the least rain in Winfield, Illinois, when the rain falls for 10.2 days and typically aggregates up to 1.65" (42mm) of rain.

What is the month with the shortest days in Winfield?

December has the shortest days of the year, with an average of 9h and 12min of daylight.

Average temperature
Winfield, IL

Average temperature - Winfield, IL

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (28°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 (16.7°F).

Average pressure
Winfield, IL

Average pressure - Winfield, IL

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed
Winfield, IL

Average wind speed - Winfield, IL

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

Average humidity
Winfield, IL

Average humidity - Winfield, IL

The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (73%).

Average rainfall
Winfield, IL

Average rainfall - Winfield, IL

The wettest month (with the highest rainfall) is May (4.45").
The driest months (with the least rainfall) are November and December (1.65").

Average rainfall days
Winfield, IL

Average rainfall days - Winfield, IL

The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is February (5.8 days).

Average snowfall
Winfield, IL

Average snowfall - Winfield, IL

The month with the highest snowfall is January (5.87").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Winfield, IL

Average snowfall days - Winfield, IL

The month with the highest number of snowfall days is January (13.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Winfield, IL

Average daylight / Average sunshine - Winfield, IL

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 12min).

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days
Winfield, IL

Average sunshine days - Winfield, IL

The month with the most sunshine days is November (16.1 days).
The month with the least sunshine days is July (8.2 days).

Average visibility
Winfield, IL

Average visibility - Winfield, IL

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

Winfield, Illinois, USA

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