Springfield
Illinois, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Springfield, IL

The Abraham Lincoln House in Springfield, Illinois, on a partially sunny autumn day
The Abraham Lincoln House in Springfield, Illinois, on a partially sunny autumn day
The first month of the winter, December, is also a wintry month in Springfield, Illinois, with average temperature fluctuating between 22.5°F (-5.3°C) and 38.3°F (3.5°C).

Temperature

In December, the average high-temperature decreases, from a cool 52.3°F (11.3°C) in November, to a wintry 38.3°F (3.5°C). The average low-temperature, in Springfield, Illinois, is 22.5°F (-5.3°C).

Humidity

December is the most humid month, with an average relative humidity of 77.6%.

Rainfall

In Springfield, during 9.9 rainfall days, 2.5" (64mm) of precipitation is typically accumulated. Throughout the year, in Springfield, there are 113.4 rainfall days, and 37.4" (950.8mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Springfield are January through April, November and December.

Daylight

The month with the shortest days is December, with an average of 9.4h of daylight.

Sunshine

With an average of 4.2h of sunshine, December has the least sunshine of the year in Springfield.

UV index

January, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to the Sun's UV rays for the average person.
The average daily UV index of 2 in December transform into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in December in Springfield?

In December, in Springfield, the average high-temperature is 38.3°F (3.5°C), and the average low-temperature is 22.5°F (-5.3°C).

What is the most humid month in Springfield?

December is the most humid month in Springfield, with an average relative humidity of 77.6%.

What is the average humidity in December in Springfield?

The average relative humidity in December is 77.6%.

How many days does it rain in December in Springfield?

In Springfield, Illinois, during December, the rain falls for 9.9 days and regularly aggregates up to 2.5" (64mm) of precipitation.

How much does it snow in Springfield in December?

In Springfield, Illinois, in December, snow falls for 4.5 days, with typically accumulated 5.6" (142.2mm) of snow.

What is the month with the shortest days in Springfield?

The month with the shortest days is December, with an average of 9.4h of daylight.

How many hours of daylight does Springfield have in December?

In December, the average length of the day is 9.4h.

What is the month with the least sunshine in Springfield?

With an average of 4.2h of sunshine, December has the least sunshine of the year in Springfield.

How long on average sun shines in December in Springfield?

In Springfield, Illinois, the average sunshine in December is 4.2h.

What are the months with the lowest UV index in Springfield?

Months with the lowest UV index in Springfield are January, November and December, with an average maximum UV index of 2.

What is the UV index intensity in December in Springfield?

In Springfield, Illinois, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to the UV radiation.
Average temperature in December - Springfield, IL
  • Average high temperature in December: 3.5°C

The warmest month (with the highest average high temperature) is July (30.1°C).
The month with the lowest average high temperature is January (1.6°C).

  • Average low temperature in December: -5.3°C

The month with the highest average low temperature is July (18.6°C).
The coldest month (with the lowest average low temperature) is January (-7.4°C).

Average humidity in December - Springfield, IL
  • Average humidity in December: 77.6%

The month with the highest relative humidity is December (77.6%).
The month with the lowest relative humidity is April (65.3%).

Average rainfall in December - Springfield, IL
  • Average rainfall in December: 64mm

The wettest month (with the highest rainfall) is June (113.3mm).
The driest month (with the lowest rainfall) is February (46mm).

Average rainfall days in December - Springfield, IL
  • Average rainfall days in December: 9.9 days

The month with the highest number of rainy days is May (11.7 days).
The month with the lowest number of rainy days is September (7.4 days).

Average snowfall in December - Springfield, IL
  • Average snowfall in December: 142.2mm

The month with the highest snowfall is January (162.6mm).
Months with the lowest snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in December - Springfield, IL
  • Average snowfall days in December: 4.5 days

The month with the highest number of snowfall days is January (5.4 days).
Months with the lowest number of 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: 9.4h

The month with the longest days is June (Average daylight: 15h).
The month with shortest days is December (Average daylight: 9.4h).

  • Average sunshine in December: 4.2h

Months with most sunshine are June and July (Average sunshine: 10.3h).
The month with least sunshine is December (Average sunshine: 4.2h).

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

Months with the highest UV index are June and July (UV index 9).
Months with the lowest UV index are January, November and December (UV index 2).