December weather forecast
Winfield, IL

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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).

Temperature

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). Winfield throughout December, records an average low-temperature of 24.3°F (-4.3°C).

Humidity

In Winfield, the average relative humidity in December is 81%.

Rainfall

The months with the least rainfall are November and December Rain falls for 7.8 days and accumulates 1.65" (42mm) of rain.

Snowfall

January through May, October through December are months with snowfall. In Winfield, in December, during 9.7 snowfall days, 3.03" (77mm) of snow is typically accumulated. In Winfield, during the entire year, snow falls for 47 days and aggregates up to 20.2" (513mm) of snow.

Daylight

The month with the shortest days in Winfield, Illinois, is December, with an average of 9h and 12min of daylight.
On the first day of December, sunrise is at 7:01 am and sunset at 4:22 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:31 pm CST.

Sunshine

The average sunshine in December is 4.1h.

UV index

In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Winfield?

The high-temperature, in December, in Winfield, is 34.3°F (1.3°C), while the low-temperature averages to 24.3°F (-4.3°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in July is appraised at 87.8°F (31°C).

What is the average humidity in December in Winfield?

In December, the average relative humidity in Winfield is 81%.

What is the driest month in Winfield?

The months with the least rainfall in Winfield are November and December Rain falls for 7.8 days and accumulates 1.65" (42mm) of rain.

How much does it rain in Winfield in December?

In December, the rain falls for 7.8 days. Throughout December, 1.65" (42mm) of precipitation is accumulated.

How many days does it snow in December in Winfield?

In Winfield, in December, snow falls for 9.7 days, with typically accumulated 3.03" (77mm) of snow.

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.

What is the average length of the day in December in Winfield?

In December, the average day length in Winfield, Illinois, is 9h and 11min.

What time are sunrise and sunset in December in Winfield?

In December, on the first day of the month, sunrise is at 7:01 am and sunset at 4:22 pm. On the last day of the month, in Winfield, Illinois, sunrise is at 7:20 am and sunset at 4:31 pm CST.

How many hours of sunshine does Winfield have in December?

In Winfield, the average sunshine duration in December is 4.1h.

What is the UV index reading in December in Winfield?

The average daily maximum UV index in December in Winfield is 2. A UV Index estimate of 2, and below, represents a low health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Winfield, IL

Average temperature in December - Winfield, IL
  • Average high temperature in December: 34.3°F

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).

  • Average low temperature in December: 24.3°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 in December
Winfield, IL

Average pressure in December - Winfield, IL
  • Average pressure in December: 30.09"Hg

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 in December
Winfield, IL

Average wind speed in December - Winfield, IL
  • Average wind speed in December: 9.1mph

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 in December
Winfield, IL

Average humidity in December - Winfield, IL
  • Average humidity in December: 81%

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

Average rainfall in December
Winfield, IL

Average rainfall in December - Winfield, IL
  • Average rainfall in December: 1.65"

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 in December
Winfield, IL

Average rainfall days in December - Winfield, IL
  • Average rainfall days in December: 7.8 days

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 in December
Winfield, IL

Average snowfall in December - Winfield, IL
  • Average snowfall in December: 3.03"

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 in December
Winfield, IL

Average snowfall days in December - Winfield, IL
  • Average snowfall days in December: 9.7 days

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 in December /
Average sunshine in December
Winfield, IL

Average daylight in December / Average sunshine in December - Winfield, IL
  • Average daylight in December: 9h and 1min

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).

  • Average sunshine in December: 4h and 1min

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 in December
Winfield, IL

Average sunshine days in December - Winfield, IL
  • Average sunshine days in December: 15.7 days

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 UV index in December
Winfield, IL

Average UV index in December - Winfield, IL
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in December
Winfield, IL

Average cloud cover in December - Winfield, IL
  • Average cloud cover in December: 58

The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 32).

Average visibility in December
Winfield, IL

Average visibility in December - Winfield, IL
  • Average visibility in December: 6mi

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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