December weather forecast
Litchfield, IL

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Weather in December

December, the first month of the winter in Litchfield, is still a cold month, with temperature in the range of an average low of 28.9°F (-1.7°C) and an average high of 40.3°F (4.6°C).

Temperature

Litchfield experiences a temperature shift at the start of December, with average high-temperatures adjusting from a cool 51.3°F (10.7°C) in November to an icy 40.3°F (4.6°C). In December, the recorded average low-temperature is a subzero cold 28.9°F (-1.7°C).

Humidity

The average relative humidity in December is 78%.

Rainfall

In Litchfield, in December, it is raining for 6.9 days, with typically 0.83" (21mm) of accumulated precipitation. In Litchfield, during the entire year, the rain falls for 125.2 days and collects up to 16.3" (414mm) of precipitation.

Snowfall

Months with snowfall in Litchfield are January through March, November and December. In Litchfield, in December, snow falls for 3.8 days, with typically accumulated 0.83" (21mm) of snow. Throughout the year, there are 19.1 snowfall days, and 3.58" (91mm) of snow is accumulated.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 6:59 am and sunset at 4:36 pm. On the last day of December, sunrise is at 7:17 am and sunset at 4:46 pm CST.

Sunshine

The average sunshine in December is 4.9h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. 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 daily high UV index of 2 in December translates into this advice:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Updated: Jul 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold does it get in December?

In Litchfield, 40.3°F (4.6°C) is the average high-temperature and 28.9°F (-1.7°C) is the average low-temperature during December. In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 91.4°F (33°C).

What is the average humidity in December?

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

How many days does it rain in December?

In Litchfield, in December, it is raining for 6.9 days, with typically 0.83" (21mm) of accumulated precipitation.

How much does it snow in December?

In Litchfield, during December, snow falls for 3.8 days and regularly aggregates up to 0.83" (21mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 30min of daylight.

What is the average length of the day in December?

In December, the average day length is 9h and 28min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 6:59 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:46 pm CST.

How many hours of sunshine does Litchfield have in December?

In December, the average sunshine duration is 4.9h.

What are the months with the lowest UV index?

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

What is the UV index reading in December?

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health 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
Litchfield, IL

Average temperature in December - Litchfield, IL
  • Average high temperature in December: 40.3°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in December: 28.9°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

Average pressure in December
Litchfield, IL

Average pressure in December - Litchfield, IL
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in December
Litchfield, IL

Average wind speed in December - Litchfield, IL
  • Average wind speed in December: 9.4mph

The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).

Average humidity in December
Litchfield, IL

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

The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).

Average rainfall in December
Litchfield, IL

Average rainfall in December - Litchfield, IL
  • Average rainfall in December: 0.83"

The wettest month (with the highest rainfall) is June (2.48").
The driest month (with the least rainfall) is February (0.71").

Average rainfall days in December
Litchfield, IL

Average rainfall days in December - Litchfield, IL
  • Average rainfall days in December: 6.9 days

The month with the highest number of rainy days is June (14.9 days).
The month with the least rainy days is January (5.6 days).

Average snowfall in December
Litchfield, IL

Average snowfall in December - Litchfield, IL
  • Average snowfall in December: 0.83"

The month with the highest snowfall is February (1.14").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Litchfield, IL

Average snowfall days in December - Litchfield, IL
  • Average snowfall days in December: 3.8 days

The month with the highest number of snowfall days is January (6.3 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
Litchfield, IL

Average daylight in December / Average sunshine in December - Litchfield, IL
  • Average daylight in December: 9h and 3min

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 30min).

  • 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 24min).

Average sunshine days in December
Litchfield, IL

Average sunshine days in December - Litchfield, IL
  • Average sunshine days in December: 20.7 days

The month with the most sunshine days is November (21.4 days).
The month with the least sunshine days is June (12 days).

Average UV index in December
Litchfield, IL

Average UV index in December - Litchfield, 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
Litchfield, IL

Average cloud cover in December - Litchfield, IL
  • Average cloud cover in December: 49

The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July, August and September (Cloud cover 29).

Average visibility in December
Litchfield, IL

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

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Litchfield, Illinois, USA

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