December weather forecast
Springfield, IL

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

Weather in December

December, the first month of the winter in Springfield, is still a cold month, with an average temperature fluctuating between 38.7°F (3.7°C) and 28°F (-2.2°C).

Temperature

In December, the average high-temperature decreases from a cool 50°F (10°C) in November to a cold 38.7°F (3.7°C). In December, the average low-temperature is 28°F (-2.2°C).

Humidity

The average relative humidity in December is 78%.

Rainfall

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

Snowfall

Months with snowfall are January through April, November and December. In Springfield, Illinois, during 5.4 snowfall days, 0.98" (25mm) of snow is typically accumulated. Throughout the year, in Springfield, there are 28.1 snowfall days, and 7.48" (190mm) of snow is accumulated.

Daylight

The month with the shortest days in Springfield is December, with an average of 9h and 25min of daylight.
On the first day of December, sunrise is at 7:00 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:43 pm CST.

Sunshine

In December, the average sunshine is 4.8h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 2 in December interpret into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in December in Springfield?

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

What is the average humidity in December in Springfield?

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

What is the driest month in Springfield?

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

How many days does it rain in December in Springfield?

In Springfield, during December, the rain falls for 7.1 days and regularly aggregates up to 1.18" (30mm) of precipitation.

How much does it snow in Springfield in December?

In Springfield, Illinois, in December, during 5.4 snowfall days, 0.98" (25mm) of snow is typically accumulated.

What is the month with the shortest days in Springfield?

The month with the shortest days is December, with an average of 9h and 25min of daylight.

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

The average day length in December in Springfield is 9h and 25min.

When are sunrise and sunset in December in Springfield?

On the first day of December in Springfield, Illinois, sunrise is at 7:00 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:43 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?

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

How high is the UV index in December in Springfield?

The average daily maximum UV index in December in Springfield is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to Sun's UV rays.
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).

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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).

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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).

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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%).

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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").

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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).

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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").

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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).

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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 25min

The month with the longest days is June (Average daylight: 14h and 56min).
The month with the shortest days is December (Average daylight: 9h and 25min).

  • Average sunshine in December: 4h and 48min

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).

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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).

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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).

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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).

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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).

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