Climate and monthly weather forecast
Winfield, IL

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Weather in January

January, the same as December, in Winfield, Illinois, is a freezing cold winter month, with an average temperature varying between 16.7°F and 28°F. The coldest period tends to be January, when average temperatures fluctuate between a high of 28°F and a low of 16.7°F. Weather in January »

Weather in February

February, the last month of the winter in Winfield, is a wintry month, with an average temperature ranging between min 19.8°F and max 32.2°F. February's arrival brings an average high-temperature of an icy 32.2°F, slightly deviating from January's 28°F. Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Winfield, Illinois, with temperature in the range of an average low of 30.7°F and an average high of 45°F. March's arrival coincides with a rise in the average high-temperature, moving from February's icy 32.2°F to a frosty 45°F. Weather in March »

Weather in April

April is a mild spring month in Winfield, Illinois, with an average temperature ranging between max 56.3°F and min 40.3°F. The arrival of April brings a temperature shift, with the average high-temperature escalating from a chilly 45°F in March to a mild 56.3°F. Weather in April »

Weather in May

May, the last month of the spring in Winfield, is a pleasant month, with temperature in the range of an average low of 51.8°F and an average high of 68.5°F. May brings a rise in the average high-temperature, transitioning from April's moderate 56.3°F to an agreeable 68.5°F. Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Winfield, Illinois, with an average temperature varying between 78.1°F and 60.8°F. Winfield's June weather shows an increase in high-temperatures, moving from May's pleasant 68.5°F to a moderately hot 78.1°F. Weather in June »

Weather in July

July, like June, in Winfield, Illinois, is another warm summer month, with an average temperature fluctuating between 65.3°F and 81.7°F. July, on average, is the warmest month, registering a high temperature of 81.7°F and a low of 65.3°F. July's mean heat index is appraised at a tropical 87.8°F. Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Winfield, Illinois, with temperature in the range of an average high of 80.4°F and an average low of 64°F. The introduction of August notes a subtle temperature variation to a still warm 80.4°F from July's 81.7°F. Weather in August »

Weather in September

September, the first month of the autumn in Winfield, is still a warm month, with temperature in the range of an average low of 57.4°F and an average high of 73.6°F. A mild drop in Winfield's average high-temperature is observed in September, transitioning from a warm 80.4°F in August to a still moderately hot 73.6°F. Weather in September »

Weather in October

October, the same as September, in Winfield, Illinois, is another mild autumn month, with an average temperature ranging between min 45.5°F and max 60.4°F. Observing a mild shift, the average high-temperature during October reduces from September's moderately hot 73.6°F to a refreshing 60.4°F. Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Winfield, Illinois, with an average temperature fluctuating between 33.3°F and 45.5°F. The beginning of November marks a clear shift in the average high-temperature, receding from October's refreshing 60.4°F to a chilly 45.5°F. Weather in November »

Weather in December

The first month of the winter, December, is also an icy month in Winfield, Illinois, with an average temperature ranging between max 34.3°F and min 24.3°F. December's arrival coincides with a drop in the average high-temperature, decreasing from November's chilly 45.5°F to an icy 34.3°F. Weather in December »
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FAQ

What time of the year is the coldest in Winfield?

Winfield's January weather reaches an average high of 28°F and an average low of 16.7°F, making it the coldest month.

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 many days does it rain in Winfield?

Throughout the year, there are 164.3 rainfall days, and 33.78" of precipitation is accumulated.

When does it snow in Winfield?

Months with snowfall are January through May, October through December.

What is the snowiest month in Winfield?

January is the month with the most snowfall in Winfield, Illinois. Snow falls for 13.1 days and accumulates 5.87" of snow.

How many days does it snow in Winfield?

Throughout the year, there are 47 snowfall days, and 20.2" of snow is accumulated.

What is the month with the least sunshine in Winfield?

January has the least sunshine of the year in Winfield, 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 12. 2023, 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 5. 2023, at 2:00 am, and the time zone reverts from CDT to CST.

What is the wettest month in Winfield?

The month with the most rainfall in Winfield, Illinois, is May, when the rain falls for 19.2 days and typically aggregates up to 4.45" of precipitation.

When it does not snow in Winfield?

June through September are months without snowfall in Winfield, Illinois.

When are the longest days in Winfield?

With an average of 15h and 12min of daylight, June has the longest days of the year in Winfield, Illinois.

What are the months with the highest UV index in Winfield?

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

What part of the year is the hottest in Winfield?

July is the month when Winfield, Illinois, experiences its warmest temperatures, averaging a high of 81.7°F and a low of 65.3°F.

What month has the most sunshine in Winfield?

With an average of 9.9h of sunshine, August has the most sunshine of the year in Winfield.

What is the least humid month in Winfield?

The least humid month in Winfield is October, with an average relative humidity of 73%.

What is the driest month in Winfield?

November and December are months with the least rain when the rain falls for 10.2 days and typically aggregates up to 1.65" of rain.

What is the month with the shortest days in Winfield?

December has the shortest days of the year in Winfield, 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).

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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).

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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).

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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%).

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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").

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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).

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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").

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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).

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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).

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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).

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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).

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Winfield, Illinois, USA

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