December weather forecast
Kempton, IL

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Weather in December

The first month of the winter, December, is also an icy month in Kempton, Illinois, with an average temperature fluctuating between 26.1°F (-3.3°C) and 36.3°F (2.4°C).

Temperature

Arrival of December comes with a reduction in the average high-temperature, falling from a chilly 47.5°F (8.6°C) in November to a wintry 36.3°F (2.4°C). Kempton experiences a mean low-temperature of 26.1°F (-3.3°C) during December.

Humidity

In Kempton, Illinois, the average relative humidity in December is 81%.

Rainfall

In Kempton, in December, during 7.3 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. Throughout the year, there are 142.1 rainfall days, and 22.56" (573mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. In Kempton, in December, during 8.5 snowfall days, 1.54" (39mm) of snow is typically accumulated. In Kempton, during the entire year, snow falls for 39 days and aggregates up to 9.02" (229mm) of snow.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year in Kempton.
On the first day of December in Kempton, sunrise is at 6:58 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:35 pm CST.

Sunshine

The average sunshine in December is 4.3h.

UV index

The months with the lowest UV index in Kempton are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 1 in December converts into the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Kempton in December?

In Kempton, 36.3°F (2.4°C) is the average high-temperature and 26.1°F (-3.3°C) is the average low-temperature during December. The average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, in July is evaluated at 87.8°F (31°C).

What is the average humidity in December in Kempton?

The average relative humidity in December in Kempton, Illinois, is 81%.

How much does it rain in Kempton in December?

In December, in Kempton, the rain falls for 7.3 days. Throughout December, 1.14" (29mm) of precipitation is accumulated.

How much does it snow in Kempton in December?

In Kempton, Illinois, in December, during 8.5 snowfall days, 1.54" (39mm) of snow is typically accumulated.

What is the month with the shortest days in Kempton?

The month with the shortest days in Kempton is December, with an average of 9h and 18min of daylight.

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

The average day length in December in Kempton, Illinois, is 9h and 17min.

What time are sunrise and sunset in December in Kempton?

In December, on the first day of the month, sunrise is at 6:58 am and sunset at 4:25 pm. On the last day of the month, in Kempton, sunrise is at 7:17 am and sunset at 4:35 pm CST.

How many hours of sunshine does Kempton have in December?

In December, the average sunshine duration in Kempton, Illinois, is 4.3h.

When is the lowest UV index in Kempton?

The months with the lowest UV index are January and December, with an average maximum UV index of 1.

What is the UV index reading in December in Kempton?

The average daily maximum UV index in December is 1. A UV Index estimate 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
Kempton, IL

Average temperature in December - Kempton, IL
  • Average high temperature in December: 36.3°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30°F).

  • Average low temperature in December: 26.1°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

Average pressure in December
Kempton, IL

Average pressure in December - Kempton, IL
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in December
Kempton, IL

Average wind speed in December - Kempton, IL
  • Average wind speed in December: 9.6mph

The windiest months (with the highest average wind speed) are January and April (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity in December
Kempton, IL

Average humidity in December - Kempton, IL
  • Average humidity in December: 81%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).

Average rainfall in December
Kempton, IL

Average rainfall in December - Kempton, IL
  • Average rainfall in December: 1.14"

The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is February (1.06").

Average rainfall days in December
Kempton, IL

Average rainfall days in December - Kempton, IL
  • Average rainfall days in December: 7.3 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (5 days).

Average snowfall in December
Kempton, IL

Average snowfall in December - Kempton, IL
  • Average snowfall in December: 1.54"

The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Kempton, IL

Average snowfall days in December - Kempton, IL
  • Average snowfall days in December: 8.5 days

The month with the highest number of snowfall days is January (11.7 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
Kempton, IL

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 4h and 2min

The months with the most sunshine are June and July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in December
Kempton, IL

Average sunshine days in December - Kempton, IL
  • Average sunshine days in December: 16.8 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (9.3 days).

Average UV index in December
Kempton, IL

Average UV index in December - Kempton, IL
  • Average UV index in December: 1

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in December
Kempton, IL

Average cloud cover in December - Kempton, IL
  • Average cloud cover in December: 57

The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 34).

Average visibility in December
Kempton, IL

Average visibility in December - Kempton, 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).

Kempton, Illinois, USA

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