December weather forecast
Springfield, IL

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The Abraham Lincoln House in Springfield, Illinois
The Abraham Lincoln House in Springfield, Illinois

Weather in December

December hosts the arrival of winter in Springfield. The colder temperatures solidify, ranging between 28°F (-2.2°C) and 38.7°F (3.7°C), indicating the start of the snow season. The daylight hours are at their shortest and the skies often cloudy, resulting in a subdued daylight. Despite the cold temperatures, the festive atmosphere adds a layer of warmth. As the winter solstice approaches, Springfield is lit with holiday spirit and snow-covered charm.

Temperature

Springfield in December experiences a subtle temperature decline, with average high-temperatures reducing from a fresh 50°F (10°C) in November to a wintry 38.7°F (3.7°C). The nights of December anticipate an average low-temperature of 28°F (-2.2°C).

Humidity

In Springfield, the average relative humidity in December is 78%.

Rainfall

December is the month with the least rainfall in Springfield. Rain falls for 7.1 days and accumulates 1.18" (30mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in Springfield. In December, it is snowing for 5.4 days. Throughout December, 0.98" (25mm) of snow is accumulated. In Springfield, during the entire year, snow falls for 28.1 days and aggregates up to 7.48" (190mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:01 am and sunset at 4:34 pm. On the last day of December, in Springfield, sunrise is at 7:19 am and sunset at 4:44 pm CST.

Sunshine

In Springfield, the average sunshine in December is 4.8h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Springfield. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for average individuals.
Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. To guard against the harmful effects of the Sun, minimize exposure during midday. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is December cold in Springfield?

The high-temperature, in December, in Springfield, is 38.7°F (3.7°C), while the low-temperature averages to 28°F (-2.2°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, is calculated to be 87.8°F (31°C).

What is the average humidity in December in Springfield?

The average relative humidity in December in Springfield, Illinois, is 78%.

What is the driest month in Springfield?

The month with the least rainfall is December, when the rain falls for 7.1 days and typically collects 1.18" (30mm) of precipitation.

How much does it rain in Springfield in December?

In December, the rain falls for 7.1 days. Throughout December, 1.18" (30mm) of precipitation is accumulated.

How much does it snow in Springfield in December?

In Springfield, in December, snow falls for 5.4 days, with typically accumulated 0.98" (25mm) of snow.

What is the month with the shortest days in Springfield?

The month with the shortest days in Springfield, Illinois, is December, with an average of 9h and 24min of daylight.

How many hours of daylight does Springfield have in December?

In December, the average day length in Springfield, Illinois, is 9h and 25min.

When are sunrise and sunset in December in Springfield?

On the first day of December, sunrise is at 7:01 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:44 pm CST.

How many hours of sunshine does Springfield have in December?

In Springfield, the average sunshine duration in December is 4.8h.

When is the lowest UV index in Springfield?

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

What is the UV index reading in December in Springfield?

The average daily maximum UV index in December in Springfield, Illinois, is 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to 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
Springfield, IL

Average temperature in December - Springfield, IL
  • Average high temperature in December: 38.7°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in December: 28°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).

Average pressure in December
Springfield, IL

Average pressure in December - Springfield, IL
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in December
Springfield, IL

Average wind speed in December - Springfield, IL
  • Average wind speed in December: 9.8mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average humidity in December
Springfield, IL

Average humidity in December - Springfield, IL
  • Average humidity in December: 78%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).

Average rainfall in December
Springfield, IL

Average rainfall in December - Springfield, IL
  • Average rainfall in December: 1.18"

The wettest month (with the highest rainfall) is June (2.72").
The driest month (with the least rainfall) is December (1.18").

Average rainfall days in December
Springfield, IL

Average rainfall days in December - Springfield, IL
  • Average rainfall days in December: 7.1 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is February (5.8 days).

Average snowfall in December
Springfield, IL

Average snowfall in December - Springfield, IL
  • Average snowfall in December: 0.98"

The month with the highest snowfall is January (2.24").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Springfield, IL

Average snowfall days in December - Springfield, IL
  • Average snowfall days in December: 5.4 days

The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Springfield, IL

Average daylight in December / Average sunshine in December - Springfield, IL
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in December
Springfield, IL

Average sunshine days in December - Springfield, IL
  • Average sunshine days in December: 19.5 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (11.4 days).

Average UV index in December
Springfield, IL

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

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).

Average cloud cover in December
Springfield, IL

Average cloud cover in December - Springfield, IL
  • Average cloud cover in December: 50

The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are June and September (Cloud cover 29).

Average visibility in December
Springfield, IL

Average visibility in December - Springfield, IL
  • Average visibility in December: 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).

Springfield, Illinois, USA

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