December weather forecast
Kansas, IL

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Weather in December

December, the first month of the winter in Kansas, is also an icy month, with an average temperature fluctuating between 39°F (3.9°C) and 28.2°F (-2.1°C).

Temperature

December's arrival comes with a decrease in the average high-temperature, moving from a frosty 49.6°F (9.8°C) in November to an icy 39°F (3.9°C). During the nights in December, an average low-temperature of 28.2°F (-2.1°C) is observed.

Humidity

In Kansas, the average relative humidity in December is 80%.

Rainfall

In Kansas, in December, it is raining for 8.3 days, with typically 1.26" (32mm) of accumulated precipitation. In Kansas, Illinois, during the entire year, the rain falls for 133.4 days and collects up to 19.49" (495mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. December is the month with the most snowfall. Snow falls for 4.8 days and accumulates 1.61" (41mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 6:53 am and sunset at 4:28 pm. On the last day of December, sunrise is at 7:12 am and sunset at 4:38 pm CST.

Sunshine

The average sunshine in December is 4.4h.

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 estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: An average UV index of 2 in December transforms into this advice:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Updated: Jul 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is December cold in Kansas?

In December, the average high-temperature and low-temperature are 39°F (3.9°C) and 28.2°F (-2.1°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in August is evaluated at 87.8°F (31°C).

What is the average humidity in December?

In December, the average relative humidity is 80%.

How many days does it rain in December?

In Kansas, during December, the rain falls for 8.3 days and regularly aggregates up to 1.26" (32mm) of precipitation.

When does it snow the most?

The month with the most snowfall is December, when snow falls for 4.8 days and typically aggregates up to 1.61" (41mm) of snow.

How much does it snow in December?

In Kansas, during December, snow falls for 4.8 days and regularly aggregates up to 1.61" (41mm) of snow.

What is the month with the shortest days?

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

How many hours of daylight does Kansas have in December?

In Kansas, the average day length in December is 9h and 26min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 6:53 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 4:38 pm CST.

How many hours of sunshine does Kansas have in December?

In Kansas, the average sunshine duration in December is 4.4h.

When is 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?

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents 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
Kansas, IL

Average temperature in December - Kansas, IL
  • Average high temperature in December: 39°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (33.8°F).

  • Average low temperature in December: 28.2°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).

Average pressure in December
Kansas, IL

Average pressure in December - Kansas, 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 (29.93"Hg).

Average wind speed in December
Kansas, IL

Average wind speed in December - Kansas, IL
  • Average wind speed in December: 9.5mph

The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.1mph).

Average humidity in December
Kansas, IL

Average humidity in December - Kansas, IL
  • Average humidity in December: 80%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).

Average rainfall in December
Kansas, IL

Average rainfall in December - Kansas, IL
  • Average rainfall in December: 1.26"

The wettest month (with the highest rainfall) is April (2.76").
The driest month (with the least rainfall) is February (0.94").

Average rainfall days in December
Kansas, IL

Average rainfall days in December - Kansas, IL
  • Average rainfall days in December: 8.3 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (6.3 days).

Average snowfall in December
Kansas, IL

Average snowfall in December - Kansas, IL
  • Average snowfall in December: 1.61"

The month with the highest snowfall is December (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Kansas, IL

Average snowfall days in December - Kansas, IL
  • Average snowfall days in December: 4.8 days

The month with the highest number of snowfall days is January (6.9 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
Kansas, IL

Average daylight in December / Average sunshine in December - Kansas, 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 2min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in December
Kansas, IL

Average sunshine days in December - Kansas, IL
  • Average sunshine days in December: 19.2 days

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (11.3 days).

Average UV index in December
Kansas, IL

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

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Kansas, IL

Average cloud cover in December - Kansas, IL
  • Average cloud cover in December: 54

The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are June, August and September (Cloud cover 31).

Average visibility in December
Kansas, IL

Average visibility in December - Kansas, 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).

Kansas, Illinois, USA

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